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January 27, 2026

Updated: October 7, 2026

20 Top Penetration Testing Companies in the US (2026)

Compare 20 penetration testing companies serving US buyers by scope, delivery model, reporting, and retesting. Learn what to ask before choosing a provider.

Mohammed Khalil

Mohammed Khalil

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Provider information checked October 7, 2026.

Quick answer: Penetration testing companies serving US buyers include specialist consultancies, enterprise security firms, and penetration testing as a service (PTaaS) platforms. The right choice depends on your systems, the attack scenarios you need tested, and the evidence your engineers or assessors need afterward. DeepStrike, NetSPI, Bishop Fox, Rapid7, NCC Group, and Mandiant are among the options below; Cobalt, Synack, HackerOne, and Bugcrowd offer additional platform-based approaches. This guide compares 20 providers using public service information and gives security leaders a practical way to evaluate scope, reporting, retesting, and US procurement requirements before requesting proposals.

DeepStrike publishes this guide and sells penetration testing services. Its first position is a disclosed publisher placement. The remaining order is for navigation; this is a researched shortlist, not an independent performance ranking or a claim that we tested these firms' services.

Build a shortlist around your requirements

Start with the environment and delivery constraints you need a provider to handle. These are editorial starting points based on the published offerings below. Other listed firms may also meet the same requirements.

Your priorityProviders to investigateWhy they belong in the initial comparison
Several asset types or business unitsNetSPI; NCC GroupBroad assessment catalogs and options for coordinating testing across environments
SaaS application, API, and identity risksBishop Fox; DeepStrike; Black Hills Information SecurityApplication and infrastructure services relevant to examining connected trust boundaries
Recurring testing within engineering workflowsCobalt; Synack; BugcrowdPlatform delivery, findings workflows, and distinct recurring or managed-testing models
Testing coordinated with assurance workCoalfire / DivisionHex; SchellmanTechnical assessment offerings alongside broader assurance practices
An explicit US-based tester requirementRaxisPublicly advertises US-based penetration testers; carry that requirement into the contract
Autonomous application and API testingAikido SecurityDedicated autonomous testing with reports and fix-retesting workflows

For a small business, define the application, roles, interfaces, and deadline first. For an enterprise, add coordination, access restrictions, regional requirements, and consistent evidence across teams. Company size informs procurement complexity; it does not establish testing quality.

Compare 20 penetration testing companies at a glance

CompanyPublicly described delivery approachShortlist considerationKey question before buying
DeepStrikeHuman-led testing with a collaboration platformApplication, cloud, and infrastructure engagementsWho tests each attack path, and what retesting is included?
NetSPIExpert-led PTaaS with platform supportEnterprise programs spanning applications, infrastructure, and specialist assetsWhich specialists and testing cadence are in your package?
Bishop FoxOffensive security consulting and technologyComplex applications, infrastructure, and productsWhich relevant technologies has the assigned team tested?
Rapid7Consulting-led penetration testingDefined engagements within a broader security programWhat deliverables and product integrations are actually included?
NCC GroupSecurity consulting and assuranceOrganizations with varied technical environmentsWhich regional team and service scope will deliver the work?
Mandiant, Google CloudConsulting-led security validationAttack scenarios tied to consequential business risksHow will the engagement model your specific threats?
Coalfire / DivisionHexOffensive security consultingOrganizations coordinating testing with assurance needsHow are technical objectives separated from audit requirements?
TrustedSecOffensive security consultingDirect collaboration on scoped security assessmentsWhich consultants, scenarios, and reporting commitments are assigned?
CobaltHuman-led and autonomous testing offeringsRelease-driven teams using findings and collaboration workflowsWhich parts are human-led, autonomous, or separately purchased?
SynackPlatform-based testing with researchers and AI capabilitiesOngoing programs evaluating managed researchers and platform deliveryWhat researcher access and human validation apply to the scope?
HackerOneH1 Pentest and agentic testing offeringsTeams evaluating pentesting alongside other testing programsWhich deliverables belong to pentesting versus other products?
BugcrowdManaged, tiered PTaaSTeams choosing a PTaaS tier and curated specialist coverageWhich report, coverage, and retest entitlements come with the tier?
BreachLockExpert-led and autonomous testing optionsBuyers comparing manual engagements and repeatable testingWhat manual testing and retest allowance does the quote include?
Aikido SecurityAutonomous AI penetration testing with reporting and retesting workflowsSaaS and engineering teams evaluating recurring application and API testingWhat coverage, expert review, and report acceptance apply to the purchased engagement?
SchellmanScoped penetration testing within an assurance firmAssurance programs that also need a defined technical testing scopeHow will testing objectives and retesting be documented?
GuidePoint SecurityConsulting and PTaaS optionsPrograms spanning several security disciplinesWhich delivery model fits this engagement?
KrollThreat-informed testing within broader cyber servicesOrganizations connecting testing to cyber risk prioritiesWhich threat scenarios and technical evidence will be delivered?
Black Hills Information SecurityConsultant-led offensive security servicesTeams seeking collaborative assessment and improvementIs the purchase a bounded assessment or an ongoing service?
RaxisPoint-in-time testing and PTaaSBuyers that prioritize a US-based testing teamWhich staffing, cadence, and reporting commitments apply?
PacketlabsManual penetration testing and related servicesBuyers open to a Canadian-headquartered provider with US presenceWhich entity, tester locations, and data-handling terms apply?

The shortlist considerations are editorial judgments based on the published offerings, not measured service-quality scores. Product names such as PTaaS do not, by themselves, establish testing depth or continuous manual coverage.

How this shortlist was researched

We initially reviewed official service pages and US contact or corporate-presence information on October 4–5, 2026, then rechecked the provider profiles and their sources on October 7, 2026. Each entry represents an active provider with a published penetration testing offering and a documented US presence, US-based parent, or explicit US contact route. A US office does not mean every tester, subcontractor, or data-processing system is located in the United States.

We retained 20 established options to represent different delivery models. We considered published scope, human testing and automation, reporting workflows, remediation support, and practical procurement fit. We did not purchase comparative engagements, inspect private customer reports, verify every tester's credentials, or measure detection rates. Official pages establish what a provider advertises; the contract and assigned team establish what you buy.

Mandiant appears under Google Cloud, and DivisionHex appears with Coalfire to avoid presenting those offerings as unrelated companies. This is not an exhaustive market directory. General-purpose vulnerability scanners and bug bounty programs without a distinct penetration testing offering are outside the selection criteria. Dedicated autonomous pentesting offerings are included when their published scope, validation, and reporting can be evaluated separately; inclusion does not imply equivalent human investigation. The cost section records selected public prices and their conditions as checked on October 7, 2026. We do not rank providers by price: those offers cover different products and scopes, and we did not obtain comparable quotes for one identical engagement.

What kind of penetration testing provider do you need?

A penetration test evaluates an authorized scope through planned security testing, including investigation and validation of weaknesses. The practical difference between proposals is often the work performed inside that scope: authenticated roles, business logic, cloud identity, internal access, and the quality of evidence returned to your team.

A vulnerability scan can help identify potential weaknesses, but it does not establish the same coverage as a scoped assessment with expert investigation. A bug bounty program invites vulnerability submissions under its rules; it does not automatically provide scheduled coverage of every asset. A red team engagement usually emphasizes agreed adversary objectives and defensive response, which can require different rules and reporting from a conventional pentest.

The distinction between tools and expert investigation matters when comparing proposals. Our guide to manual versus automated penetration testing explains where each approach contributes and where coverage must be made explicit.

Delivery modelWhen it may fitWhat to verify
Project-based consultancyA release, a defined environment, or a scheduled assessmentNamed scope, testing effort, access assumptions, deliverables, and retest terms
Human-led PTaaSRecurring testing with centralized findings and remediation workflowsActual human testing windows, staffing continuity, platform access, and reporting cadence
Managed researcher networkA program that benefits from curated specialist accessVetting, assignment model, confidentiality, geographic restrictions, and consistent coverage
Autonomous or automated testingRepeatable checks between expert assessmentsSupported scenarios, validation, false-positive handling, and limits on business-logic testing
Broader security consultancyTesting that must coordinate with other security workThe specific penetration testing team, accountable lead, and separation of workstreams

For frequently changing software, ask what triggers a new test after a major release. A dashboard that remains available all year is different from a commitment to repeat human testing throughout that year.

The 20 providers: strengths, limits, and buyer fit

Each profile separates the published offering, US relevance, source addresses, and our buyer-fit judgment. The tables pair documented strengths with published limits or scope-based purchasing considerations. A consideration is not evidence of poor service, and an unspecified term is not proof that a capability is absent. Apply the shared scope, reporting, confidentiality, and retest checks later in this guide to every provider, including DeepStrike.

1. DeepStrike: Application testing and remediation collaboration

DeepStrike

Public offering: DeepStrike's penetration testing services describe human-led testing across applications, cloud environments, and infrastructure, supported by a findings and collaboration platform. Its public process covers planning, reconnaissance, vulnerability discovery, controlled exploitation, reporting, and technical support. Published reports include reproduction steps, remediation guidance, and root-cause information; the proposal should define exact coverage and commercial terms.

US relevance: DeepStrike LLC publishes a business address in Newark, Delaware. Define tester locations, permitted subcontracting, and data-handling restrictions in the engagement agreement.

Official sources: Pricing , Contact Us

Buyer fit: Engineering teams that need application, cloud, or infrastructure testing with direct remediation collaboration.

Documented strengthsLimits and buying considerations
Human-led testing with reproduction evidence, root-cause information, and remediation guidance.The service description is not an independently measured quality comparison. Assess the assigned team and a relevant sample report.
The published Basic plan lists Slack collaboration, customizable reports, and 12 months of remediation retesting.No numeric price is displayed on the pricing page. Basic is a one-shot test; recurring coverage belongs to a different plan, with contract-specific terms.

2. NetSPI: Enterprise programs across multiple asset types

NetSPI

Public offering: NetSPI describes human-delivered penetration testing supported by its PTaaS platform. Published scope includes web applications, APIs, mobile and thick-client applications, cloud, internal and external networks, wireless, hardware, mainframes, and AI/ML systems. Its workflow includes findings management, PDF reporting, and remediation testing. Specialist services and recurring testing must still be named in the purchased scope.

US relevance: NetSPI's contact page lists Minneapolis headquarters and offices in Portland and Kansas City. These locations establish US presence, not a promise that every assigned tester is onshore.

Official sources: https://www.netspi.com/netspi-ptaas/; https://www.netspi.com/contact/

Buyer fit: Enterprise programs coordinating several asset classes, specialist teams, or business units.

Documented strengthsLimits and buying considerations
Published coverage extends to mainframes, hardware, thick clients, and AI/ML as well as common application and network targets.The breadth of the catalog does not allocate specialist effort to your engagement; list each asset class and responsible specialist in the scope.
PTaaS workflows include findings management, PDF reporting, and remediation testing.For a recurring program, specify testing cadence and access to evidence and remediation history across engagements.

3. Bishop Fox: Complex applications, infrastructure, and products

Bishop Fox

Public offering: Bishop Fox combines offensive security specialists with technology across application, mobile, secure-code, cloud, hardware, network, and AI/LLM assessments. Its catalog distinguishes consulting assessments from continuous exposure services and red-team engagements. This breadth can support a complex product or infrastructure assessment, but each specialty requires explicit scope and assigned expertise.

US relevance: Bishop Fox lists headquarters in Tempe, Arizona, and a San Francisco office, while describing a remote-first workforce. Confirm the proposed team's locations and data access.

Official sources: https://bishopfox.com/services/penetration-testing-services; https://bishopfox.com/contact

Buyer fit: A complex application, infrastructure environment, or product requiring several offensive security specialties.

Documented strengthsLimits and buying considerations
Application, secure-code, hardware, cloud, and AI/LLM assessment options support a technically varied shortlist.Source review, hardware testing, and other specialties need explicit inclusion; a standard application assessment does not establish that coverage.
The catalog distinguishes consulting, continuous exposure services, and red teaming.Choose the service against your objective; continuous exposure visibility and an objective-led red team are different purchases from a scoped pentest.

4. Rapid7: Defined assessments within a broader security program

Rapid7

Public offering: Rapid7 provides consulting-led assessments of networks, applications, devices, and people within a broader security services portfolio. Its published penetration testing options include internal and external networks, web applications, IoT devices, and wireless networks. Buyers should distinguish the consulting engagement from Rapid7 product subscriptions and identify the report and remediation activities actually included.

US relevance: Rapid7 lists its global headquarters in Boston. Confirm the entity and team delivering the proposed US assessment rather than inferring staffing from headquarters.

Official sources: https://www.rapid7.com/services/penetration-testing/; https://www.rapid7.com/contact/

Buyer fit: Organizations fitting a defined consulting assessment into an established security or vulnerability management program.

Documented strengthsLimits and buying considerations
Consulting scope includes networks, web applications, IoT, and wireless environments.Consulting and product subscriptions are distinct; using Rapid7 tools does not establish that integrations or licenses are included in the engagement.
The broader service portfolio offers a route to coordinate assessment and remediation workstreams.Specify the evidence handoff, remediation workshop, and fix-validation activities; their inclusion is not established by the portfolio alone.

5. NCC Group: Coordinating varied environments and regional teams

NCC Group

Public offering: NCC Group describes manual and tool-assisted testing across applications, infrastructure, networks, cloud, and hardware, with continuous application testing available as a distinct offering. The catalog also includes configuration and design reviews, which should be distinguished from exploitation-based penetration testing. Its broader assurance practice can support varied environments, while the selected regional team and statement of work determine delivery.

US relevance: NCC Group provides a dedicated US and Canada contact route. Confirm the regional practice, contracting entity, tester locations, and where evidence will be stored.

Official sources: https://www.nccgroup.com/penetration-testing-services/; https://www.nccgroup.com/contact-us/

Buyer fit: Organizations coordinating varied environments or several regional assessment teams.

Documented strengthsLimits and buying considerations
Manual and tool-assisted testing covers applications, infrastructure, cloud, and hardware.Identify the delivering regional practice and one consolidated coverage statement for the mixed environment.
Continuous application testing and configuration or design reviews appear as distinct options.Review-based assurance and exploitation-based testing answer different questions; avoid counting an adjacent review as completed pentest coverage.

6. Mandiant, Google Cloud: Threat-informed assessments of critical assets

Mandiant, Google Cloud

Public offering: Mandiant's Google Cloud service describes consultant-led penetration tests tailored to critical systems, networks, applications, and physical controls. Published options include internal and external testing, web and mobile applications, cloud, social engineering, embedded devices/IoT, and industrial control systems. Deliverables include an executive summary, technical reproduction documentation, risk analysis, and tactical and strategic remediation recommendations.

US relevance: Mandiant is offered through Google Cloud. Confirm the US contracting entity, regional service availability, assigned consultants, and data-processing arrangements for your scope.

Official sources: https://cloud.google.com/security/consulting/mandiant-penetration-testing; https://services.google.com/fh/files/misc/penetration-testing-ds-en.pdf

Buyer fit: Organizations defining an assessment around sensitive information, critical functions, or consequential trust relationships.

Documented strengthsLimits and buying considerations
Published assessment options span applications, networks, cloud, physical controls, and specialist systems.Define the threat assumptions and selected targets; the broad catalog does not establish that every attack path is included.
The datasheet describes executive reporting, reproduction documentation, risk analysis, and tactical and strategic remediation.Adjacent red team, incident response, and advisory services require their own scope; do not assume they accompany a penetration test.

7. Coalfire / DivisionHex: Offensive testing alongside assurance programs

Coalfire / DivisionHex

Public offering: Coalfire DivisionHex describes threat-informed penetration testing within Coalfire's offensive security portfolio. DivisionHex is part of Coalfire and is represented once in this list. Adjacent offerings include adversary services, social engineering, and AI-related work. A broader assurance relationship can help coordinate procurement, but technical attack objectives and audit requirements still need separate definitions.

US relevance: Coalfire's official company announcement identifies Chicago headquarters and the DivisionHex relationship. Confirm the legal entity and practice delivering the engagement.

Official sources: https://coalfire.com/services/security/offensive-security-services-coalfire-divisionhex; https://coalfire.com/insights/news-and-events/press-releases/cybersecurity-legends-team-up-to-launch-coalfire-divisionhex

Buyer fit: Programs that need technical testing coordinated with assurance activities while keeping each objective explicit.

Documented strengthsLimits and buying considerations
DivisionHex provides a distinct offensive security practice within Coalfire.Treat Coalfire and DivisionHex as one related offering in procurement, not two independent competing bids.
Threat-informed testing sits alongside adversary, social engineering, and AI-related services.Map attack objectives and assessment obligations separately; an assurance relationship alone does not establish technical coverage or assessor independence.

8. TrustedSec: Scoped assessments with a defined testing process

TrustedSec

Public offering: TrustedSec describes customized penetration testing using tools and manual techniques. Its published engagement process includes discovery and scoping, reconnaissance, vulnerability identification, exploitation, reporting and recommendations, and validation testing after remediation. Application security and LLM assessments also appear in its service catalog; these adjacent assessments should be identified separately when relevant to the purchase.

US relevance: TrustedSec lists its address in Fairlawn, Ohio. Agree on tester and subcontractor locations where your procurement rules restrict access to sensitive environments.

Official sources: https://www.trustedsec.com/services/penetration-testing

Buyer fit: Buyers seeking a consulting engagement with a defined testing process and direct technical collaboration.

Documented strengthsLimits and buying considerations
The published process runs from scoping and reconnaissance through exploitation and reporting.Tie the proposed consultants and methods to your environment; a process outline does not establish the effort assigned to each scenario.
Validation after remediation is part of the described workflow.Specify the included validation window and scope. Additional application or LLM assessments should be identifiable work items.

9. Cobalt: Testing within engineering and remediation workflows

Cobalt

Public offering: Cobalt's catalog separates human-led penetration testing, autonomous testing, and continuous offerings across applications, APIs, networks, cloud, and related environments. Its platform supports live findings and collaboration through in-platform chat, Slack, and Microsoft Teams. Autonomous testing is presented as a way to add checks between pentests; the order form should identify the actual human and automated work purchased.

US relevance: Cobalt lists US headquarters in Boston. Confirm the locations of assigned testers and platform data processing, especially when sensitive findings cross organizational boundaries.

Official sources: https://www.cobalt.io/services; https://www.cobalt.io/contact-us; https://www.cobalt.io/platform/pricing

Buyer fit: Engineering teams comparing scheduled human testing with autonomous checks and platform-based collaboration.

Documented strengthsLimits and buying considerations
Live findings and collaboration through the platform, Slack, and Teams support developer handoff.Separate human-led, autonomous, and continuous products in the order form; their labels do not establish identical testing work.
The published Autonomous Pentest offer includes pentester direction and a structured report.Its temporary price applies to that web application offering, not every Cobalt engagement; the cost section states the deadline and scope.

10. Synack: Managed researcher testing and platform delivery

Synack

Public offering: Synack's PTaaS offering combines a platform, vetted security researchers, and AI capabilities. Published workflows include on-demand test management, platform-based results, and cloud integrations for detecting changes to AWS, Azure, and Google Cloud assets. Buyers should distinguish the managed researcher model from an open bug bounty and establish which assets, testing windows, and reporting commitments are contracted.

US relevance: Synack lists headquarters in Redwood City, California, and public-sector operations in the Washington, DC area. Researcher location and access controls remain engagement-specific.

Official sources: https://www.synack.com/products/penetration-testing-as-a-service/; https://www.synack.com/contact/

Buyer fit: Ongoing testing programs that want a managed researcher model and centralized test management.

Documented strengthsLimits and buying considerations
The offering combines vetted researchers, a delivery platform, and AI capabilities.Researcher location and access restrictions are engagement-specific; the public model alone does not establish a US-only team.
Published cloud integrations detect changes to AWS, Azure, and Google Cloud assets.Detecting an asset change is different from completing a test of it; define triggered testing and require a coverage record.

11. HackerOne: Pentesting alongside a wider discovery program

HackerOne

Public offering: HackerOne describes H1 Pentest and H1 Agentic Pentest as dedicated pentesting offerings, separate from bug bounty programs. Published scope includes web applications, APIs, networks, and cloud environments. Its workflow describes live findings, reporting, fix validation, and retesting; for supported agent-assisted web testing, human pentesters retain oversight and review agent findings. The exact product and scope determine the engagement.

US relevance: HackerOne's privacy policy lists a San Francisco corporate contact address. Confirm the contracting entity, assigned tester locations, and permitted handling of assessment evidence.

Official sources: https://www.hackerone.com/product/pentest; https://www.hackerone.com/policies/privacy

Buyer fit: Teams evaluating a scheduled pentest alongside a broader vulnerability discovery program.

Documented strengthsLimits and buying considerations
Dedicated pentest offerings include reporting, fix validation, and retesting workflows.A bug bounty program is a separate offering and does not automatically supply the scheduled coverage or completion report you need.
For supported agent-assisted web testing, human pentesters oversee testing and review agent findings.Identify H1 Pentest versus H1 Agentic Pentest and its supported targets; do not transfer one product’s coverage claims to another.

12. Bugcrowd: Curated testing teams and tiered PTaaS

Bugcrowd

Public offering: Bugcrowd offers platform-based PTaaS using curated testing teams, with several packages and delivery options. Published target types include web applications, APIs, networks, mobile applications, cloud, and IoT, with specialist coverage depending on the selected offering. Its public materials describe real-time dashboards, engineering integrations, and reports. Scope completion, report customization, and retesting should be confirmed for the purchased tier.

US relevance: Bugcrowd's official contact page lists San Francisco headquarters. Confirm the location and access restrictions of the selected testing team, including any specialist participants.

Official sources: https://www.bugcrowd.com/products/pen-test-as-a-service/; https://www.bugcrowd.com/about/contact/

Buyer fit: Programs that benefit from curated specialist teams and can select a PTaaS tier against explicit requirements.

Documented strengthsLimits and buying considerations
Curated teams and platform workflows support application, network, mobile, cloud, and specialist testing options.Target types and specialist coverage depend on the offering; confirm that the selected tier covers your assets.
Public materials describe dashboards, engineering integrations, and reports.Report customization, testing methods, and retest entitlements must be compared at the purchased-tier level.

13. BreachLock: Comparing expert-led and autonomous testing

BreachLock

Public offering: BreachLock describes expert-led penetration testing and autonomous options across web applications, APIs, networks, cloud, mobile, and IoT. Its Unified Platform supports live findings, report generation, and remediation communication. The service page advertises a comprehensive manual retest and online remediation support; buyers should confirm the applicable window, cycles, and scope in their contract rather than treating public terms as an unrestricted entitlement.

US relevance: BreachLock publishes a New York business address. Confirm the delivery team, evidence-storage location, and permitted data transfers for your engagement.

Official sources: https://www.breachlock.com/penetration-testing-service/

Buyer fit: Buyers comparing an expert-led assessment with autonomous testing between engagements.

Documented strengthsLimits and buying considerations
Expert-led and autonomous options share a platform for findings, reports, and remediation communication.Specify which scenarios receive manual investigation; a combined platform does not mean both delivery modes examine every scenario.
The service page advertises manual retesting and online remediation support.The public statement does not define an unrestricted allowance; put the applicable window, cycles, and eligible findings in the contract.

14. Aikido Security: Autonomous application and API testing

Aikido Security

Public offering: Aikido's AI penetration testing offering uses autonomous agents to assess applications and APIs, validate findings, and produce technical reports with remediation guidance and fix retesting. Its continuous option supports targeted testing after application changes and has additional setup requirements, including an initial assessment and repository connections. Automated delivery and any purchased expert review should be evaluated separately.

US relevance: Aikido's official office information lists San Francisco and Chicago, alongside European locations. Confirm the contracting entity, data processing, and any expert-review arrangements.

Official sources: https://www.aikido.dev/attack/aipentest; https://www.aikido.dev/company/about; https://www.aikido.dev/pricing

Buyer fit: SaaS teams evaluating autonomous application and API testing with evidence their engineers can act on.

Documented strengthsLimits and buying considerations
Autonomous testing produces technical reports and supports fix validation; the typical plan publishes a six-month retest window for initial findings.That retest allowance is not a new full assessment of changed scope. Confirm report acceptance and any purchased expert review separately.
The typical assessment names one application and its primary APIs, making its advertised unit of purchase clear.White-box access is the default; black-box or gray-box testing costs extra. Continuous testing is a separate option with additional setup.

15. Schellman: Technical testing coordinated with assurance needs

Schellman

Public offering: Schellman offers penetration testing within its broader assurance practice. Published target types include applications and APIs, internal and external networks, wireless, mobile, cloud, and hardware/IoT. Its service page describes a director responsible for initial scoping and contracting, a manager leading the project, and a tester performing the assessment. This makes assigned roles and the technical statement of work useful comparison points.

US relevance: Schellman lists an address in Tampa, Florida. Confirm the legal entity and testing team, particularly when assurance and advisory work create independence questions.

Official sources: https://www.schellman.com/services/penetration-testing

Buyer fit: Assurance programs that also need a clearly accountable technical testing team.

Documented strengthsLimits and buying considerations
Published targets include applications, APIs, networks, cloud, wireless, mobile, and hardware/IoT.Map required assessment evidence to the actual systems and access levels; an assurance objective alone does not define the testing scope.
The service page separates director scoping, manager leadership, and tester execution roles.Identify who executes and reviews your work, and resolve applicable independence requirements before combining assurance and advisory workstreams.

16. GuidePoint Security: Testing across connected security workstreams

GuidePoint Security

Public offering: GuidePoint Security describes tailored testing across internal and external networks, applications, cloud, industrial control systems, security awareness, and facilities. Its approach emphasizes controlled exploitation, evidence, and reporting. Cloud-specific testing, PTaaS, purple teaming, and red teaming appear as separate options; buyers should select the delivery model and objectives before comparing proposals.

US relevance: GuidePoint Security publishes an address in Reston, Virginia. Confirm the assigned specialists, delivery locations, and any on-site requirements for the proposed assessment.

Official sources: https://www.guidepointsecurity.com/penetration-testing/

Buyer fit: Security programs coordinating testing across mixed technical environments and remediation owners.

Documented strengthsLimits and buying considerations
The catalog spans networks, applications, cloud, industrial controls, awareness, and facilities.Name a specialist and coverage boundary for each selected environment; catalog breadth is not a commitment to test them all.
Consulting, PTaaS, red teaming, and purple teaming provide distinct delivery choices.Choose the objective first. Defensive-response exercises and integration work should not be silently bundled into the pentest assumption.

17. Kroll: Threat-informed testing tied to cyber risk priorities

Kroll

Public offering: Kroll describes threat-informed penetration testing within its broader cyber risk practice. Its published portfolio includes web application, API, cloud, and infrastructure testing, alongside an agile testing program integrated with software development. Buyers should distinguish a bounded assessment from recurring delivery and from adjacent advisory or response services, then establish how threat scenarios translate into technical evidence.

US relevance: Kroll identifies New York headquarters and a global office network. Confirm regional staffing and data-processing arrangements rather than assuming US-only delivery.

Official sources: https://www.kroll.com/en/services/cyber/threat-exposure-management/penetration-testing

Buyer fit: Security leaders who want technical testing aligned with defined organizational risk priorities.

Documented strengthsLimits and buying considerations
Threat-informed testing covers web applications, APIs, cloud, and infrastructure.Specify how the selected threats translate into reproducible evidence; general risk advice does not replace technical findings.
An agile testing option supports a different cadence from a bounded assessment.Clarify recurring versus project delivery and keep adjacent advisory or incident-response services separate in the commercial scope.

18. Black Hills Information Security: Application and network consulting engagements

Black Hills Information Security

Public offering: Black Hills Information Security describes customized penetration tests for applications, networks, and cloud environments. Its application testing approach includes manual investigation, API analysis, cloud and identity review, authentication and authorization testing, and business-logic analysis. The catalog separates defined assessments, continuous penetration testing, and other services, so buyers should establish the purchased objective and reporting expectations.

US relevance: Black Hills Information Security publishes an address in Sturgis, South Dakota. Confirm where the assigned consultants will work and how sensitive evidence is handled.

Official sources: https://www.blackhillsinfosec.com/services/

Buyer fit: Teams assessing application, API, cloud, and identity interactions through a consulting engagement.

Documented strengthsLimits and buying considerations
Application testing descriptions address authorization, business logic, APIs, and cloud or identity relationships.Provide the relevant roles, tenants, and interfaces; an application label alone does not establish coverage of connected systems.
Defined assessments and continuous testing appear as separate services.Select the service against your objective: finding scoped weaknesses, examining an attack path, and exercising defenses can require different deliverables.

19. Raxis: A provider that explicitly advertises US-based testers

Raxis

Public offering: Raxis describes manual testing by US-based penetration testers, with point-in-time engagements and PTaaS through Raxis Attack. Published coverage includes network, application, API, physical, and operational technology testing. Its PTaaS description includes direct communication with testers and retesting within the workflow. These public statements should become explicit staffing, testing, and remediation commitments in the selected contract.

US relevance: Raxis lists an Atlanta address and explicitly describes US-based testers. If onshore delivery is mandatory, include tester and subcontractor location requirements in the contract.

Official sources: https://raxis.com/; https://raxis.com/pentest/ptaas/

Buyer fit: Buyers with an explicit US-based tester requirement who are comparing one project with a recurring program.

Documented strengthsLimits and buying considerations
Raxis explicitly advertises US-based testers and direct engineer access in Raxis Attack.Make any tester and subcontractor location restrictions contractual; a marketing statement is not the signed staffing commitment.
Raxis Attack publishes recurring testing, remediation collaboration, and retesting under a subscription.The FAQ says concurrent testing of the same scope is not supported. Its published annual starting price is a different purchase from point-in-time Raxis Strike.

20. Packetlabs: Manual testing with a cross-border delivery decision

Packetlabs

Public offering: Packetlabs describes human-led testing across infrastructure, identity, cloud, and applications, with AI used under tester oversight. Published scope includes cloud configuration and permissions, APIs, storage, and cloud-native services. It is Canadian-headquartered and lists a US outpost; buyers should assess testing scope separately from the contracting entity and cross-border delivery arrangement.

US relevance: Packetlabs lists Toronto headquarters and a San Francisco outpost. A US office does not establish that all testing or evidence processing occurs in the United States.

Official sources: https://www.packetlabs.net/services-overview/penetration-testing-services/; https://www.packetlabs.net/get-quote/

Buyer fit: Buyers whose scope fits the service and whose policies allow the proposed cross-border delivery arrangement.

Documented strengthsLimits and buying considerations
Human-led testing spans infrastructure, identity, cloud, and applications, with AI under tester oversight.Document the specialist scope, including cloud permissions and application interfaces; oversight does not define every activity in the engagement.
The company identifies both Canadian headquarters and a US outpost.A US office does not guarantee US-only testing or evidence storage. Confirm the contracting entity, access locations, retention, and permitted transfers.

How to choose the best penetration testing company for your scope

Use a Scope-to-Proof review: define the asset, name the security decision, require evidence, and agree on closure. Apply the same questions to every shortlisted firm. This is a buyer's decision framework, not a vendor scoring formula.

Your environmentQuestion the engagement must answerEvidence to request
Web application or APICan one role or tenant access another's data or actions?Role and tenant coverage, authorization findings, reproducible evidence, and explicit exclusions
Cloud environmentCan a compromised identity cross a meaningful privilege or trust boundary?In-scope accounts and services, identity assumptions, validated paths, and remediation guidance
Internal networkWhat could an attacker do from the agreed starting position?Starting access, segmentation assumptions, tested paths, and impact under the authorized rules
Mobile applicationHow do client behavior, APIs, authentication, and sensitive data handling interact?Supported platforms, backend scope, test access, and relevant findings across those components
AI-enabled applicationCan the application expose protected data or perform unauthorized actions through its model or tools?Application-specific threat scenarios, permission boundaries, reproducible results, and stated limits
Regulated environmentDoes the completed scope produce evidence needed for the applicable assessment?Requirement-to-scope mapping, signed authorization, coverage statement, and final findings

Testing an AI application is different from using AI to test an application. A proposal should identify both the target technology and the execution method. Neither an “AI-powered” label nor an automated finding establishes that your application's authorization or data boundaries were adequately examined.

For API-specific procurement, use the narrower API penetration testing company comparison alongside this broader shortlist. It helps keep endpoint coverage and authorization requirements central to the evaluation.

Cloud buyers can similarly use the dedicated cloud penetration testing company comparison to examine cloud-specific scoping questions without treating this general list as a complete cloud assessment plan.

A worked example: comparing two SaaS testing proposals

Suppose a SaaS company is releasing a web application, an API, and an AWS deployment. It needs to know whether one tenant or a compromised application identity could reach another customer's information. The company supplies two test tenants, user/admin/support roles, documented API routes, an approved cloud account, and synthetic test data.

The two proposals below are fictional teaching examples, not quotes from listed providers or findings from a customer engagement. Assume both fit the buyer's budget and deadline; the decision turns on scope and evidence, not an invented market price.

RequirementHypothetical proposal AHypothetical proposal B
Application accessOne standard user role in one tenantUser, admin, and support roles across both test tenants
API coverageRoutes reached through the browser; remaining API routes excludedAgreed route inventory, including relevant direct API calls and role boundaries
Cross-tenant objectiveNo explicit tenant-isolation scenarioAuthorized attempts to access the other test tenant's records or actions
AWS scopeHosting environment excludedNamed application identity, relevant IAM permissions, and approved storage access paths
Safety and accessGeneral authorization required before the testSame authorization requirement, plus synthetic data, escalation contacts, and agreed stop conditions
EvidenceFindings report; untested areas listed as exclusionsFindings report plus a role/tenant/asset coverage record, blocked paths, and exclusions
ClosureInitial report only; retest separately quotedOne validation cycle of reported findings within an agreed 60-day window

Decision: Proposal B answers the stated release question more directly because it includes the tenant, role, API, and cloud relationships at issue. Its 60-day retest is an illustrative contract term, not an industry standard. The buyer should require the named activities and evidence in the signed scope; a longer list of promises alone is insufficient.

Proposal A may fit a deliberately narrower application assessment. It does not answer this buyer's full cross-tenant question as written. The practical next step is to ask A's bidder to price the missing coverage against the same baseline, then compare the revised offers. A report with no findings from A's limited scope would not establish that the excluded paths were safe.

Acceptance after testing: Engineering receives reproducible evidence and remediation guidance. The coverage record distinguishes completed, blocked, and excluded work. After agreed fixes are rechecked, the closure record identifies resolved, partially resolved, and unresolved findings. A blocked critical scenario triggers follow-up scoping rather than being counted as passed.

What should the report and retest include?

A useful penetration testing report should let a technical team reproduce and fix a finding while helping a business owner understand its consequences. Ask for an appropriately redacted sample before contracting. A certificate or one-page summary can support communication, but it cannot replace the underlying evidence and coverage statement.

DeliverableAcceptance question
Scope and limitationsDoes it identify tested assets, dates, roles, access conditions, and exclusions?
Executive summaryDoes it explain business impact and remediation priorities without overstating coverage?
Technical findingsAre affected assets, prerequisites, reproduction evidence, and consequences clear?
Remediation guidanceCan the responsible engineer identify the fix and its relevant assumptions?
Coverage statementCan you distinguish tested areas from inaccessible or excluded areas?
Retest recordDoes it state what was rechecked, when, under what conditions, and with what result?

For an executive briefing, teams can use an infographic maker to visualize approved, non-sensitive summaries of remediation priorities and retest status. Keep these visuals consistent with the underlying report and exclude exploit details, credentials, and identifying asset information.

Define retesting before signing. Ask about the time window, included cycles, eligibility of newly discovered issues, evidence required from your engineers, and charges for additional work. A retest of listed findings is not necessarily a new penetration test of the entire environment. Changes to architecture or scope may need a separate assessment.

US procurement: location, confidentiality, and testing authorization

“Serving US customers,” “US-headquartered,” and “US-only delivery” describe different things. If your organization requires onshore testers or particular data-handling arrangements, put those conditions in the contract. A local sales office or US parent does not settle the question.

Before granting access, confirm the contracting entity; tester and subcontractor locations; confidentiality terms; report hosting and retention; deletion obligations; and incident notification contacts. Specify where sensitive evidence may be stored and who may retrieve it. Have the responsible procurement, security, and legal teams assess any restrictions that apply to your organization.

The rules of engagement should identify authorized systems, permitted test windows, prohibited actions, escalation contacts, stop conditions, and third-party permissions. Agree on how the team handles a serious finding during the test. NIST's Technical Guide to Information Security Testing and Assessment, SP 800-115 provides a planning and assessment reference; it does not rank providers or replace a current statement of work.

Testing for compliance and customer assurance

For payment-card environments, ask the assessor to map the engagement to the applicable edition and requirements in the PCI Security Standards Council document library. Do not assume a generic web application test covers every system or assessment obligation in scope.

For HIPAA, distinguish current obligations from proposed changes. HHS's Security Rule proposed-rule factsheet describes proposed annual penetration testing and states that the current Security Rule remains in effect. The proposal alone is not evidence that every covered entity currently has that annual testing obligation.

For federal cloud work, use the applicable authorization requirements and the current FedRAMP assessment and monitoring control guidance when agreeing on scope and frequency. Confirm required assessor qualifications for the work you are procuring.

A penetration test can provide evidence for a security or assurance process. It does not, by itself, certify an organization, guarantee an audit result, or demonstrate that future breaches cannot occur.

Penetration testing costs: compare equivalent proposals

Some providers publish prices for specific products. The examples below were checked on October 7, 2026 and use the displayed US-dollar prices. They are different units of purchase, not a cheapest-to-most-expensive ranking or a market-wide price range. Confirm current terms before budgeting.

Published offerPrice and purchase unitScope and conditions attached to that price
Cobalt Autonomous PentestPromotional $3,500 per testWeb application testing with pentester direction; the test must start and finish before December 31, 2026. This is not the price of every human-led or continuous Cobalt offering.
Aikido Typical Pentest$4,000 per assessment, excluding taxesTime-boxed, fixed scope for one application and its primary APIs. White-box testing is the default; black-box or gray-box options cost extra. Retesting covers initial findings for up to six months.
Raxis Attack PTaaSStarts at $25,000 for one year, depending on scopeA recurring testing subscription, not one standalone assessment. The page describes one-to-three-year commitments; concurrent tests of the same scope are not supported.
DeepStrike Basic / PremiumQuote required; no numeric price displayedBasic is a one-shot assessment; Premium describes a continuing program. The Basic page lists 12 months of remediation retesting; eligible scope and commercial terms belong in the proposal.

Pricing sources: Cobalt: https://www.cobalt.io/platform/pricing; Aikido: https://www.aikido.dev/pricing; Raxis: https://raxis.com/pentest/ptaas/; DeepStrike: https://deepstrike.io/pricing/penetration-testing-pricing.

These selected examples do not establish whether every other provider publishes a price. Cobalt's main Standard, Premium, and Enterprise tiers request a quote; its temporary autonomous offer should not be generalized to them. Nor should Aikido's application assessment be compared directly with Raxis's annual subscription.

For your own engagement, cost depends on asset complexity, authenticated roles, specialist skills, testing effort, access readiness, reporting, and retesting. Compare total committed spend and covered work, including subscription length and excluded activities. Dividing a subscription by an assumed number of tests creates a misleading per-test price if that cadence is not contracted.

A proposal comparison worksheet

Copy the rows below into your request for proposals and ask every bidder to respond against the same baseline. Record omissions as exclusions to resolve before award. This is a buyer worksheet, not a price survey or a claim about any provider's standard contract.

Decision areaBaseline you provideResponse to require from each bidder
Assets and accessApplications, APIs, environments, roles, tenants, and test accountsIncluded assets and roles, prerequisites, exclusions, and assumptions
Critical scenariosBusiness functions and cross-system access paths you need assessedHow each scenario is tested and how completed coverage is documented
Human and automated workWhere you require expert investigation or recurring checksTesting activities, human effort, automated coverage, and stated limitations
Assigned teamTechnical specialties, location restrictions, and accountable contactsResponsible lead, relevant experience, subcontracting, and delivery locations
ScheduleRelease date, access readiness, test windows, and stop conditionsStart and completion commitments, dependencies, and escalation arrangements
Evidence and reportingEngineering evidence, executive summary, coverage statement, and debriefSample deliverables, report access, export rights, and delivery date
RetestingExpected remediation window and the findings you want recheckedIncluded cycles, eligibility, evidence requirements, extra charges, and closure record
Commercial termsWhether you need one engagement or a recurring programTotal for the defined scope, subscription term, renewal conditions, and additional-work rates

Before comparing totals, check the rows where bidders made different assumptions. A proposal that excludes a privileged role, backend API, or agreed retest is a different purchase. Resolve that difference explicitly rather than treating it as a cheaper version of the same test.

For a fuller procurement process, the guide to choosing a penetration testing company expands the scoping and evaluation steps.

Small business versus enterprise requirements

A small business with one application may need a focused project, direct access to the tester, and a report its developers can act on. Start with the highest-consequence assets and access paths. Avoid paying for a broad platform solely because it appears in a competitor's stack, but do not remove critical roles or interfaces simply to meet a price target.

An enterprise may need scheduling across business units, identity and data restrictions, consistent reports, integrations, and remediation ownership at scale. Test how the provider manages those requirements in the proposal. Company size and brand familiarity do not establish that the assigned team is the best fit for a particular environment.

Frequently asked questions

Which certifications should a penetration testing company have?

Separate company-level qualifications from individual credentials. Ask who will actually test your systems, what relevant experience they have, and whether your procurement or assessment program requires a specific accreditation. Individual certifications can support an evaluation, but they do not prove coverage of your architecture or the quality of a future report. Review relevant work examples and the proposed methodology as well.

Can penetration testing be performed in production?

It can be appropriate for an authorized, carefully scoped engagement, but the decision depends on service criticality and acceptable operational risk. Agree on permitted activities, test windows, monitoring, stop conditions, and escalation before work begins. A representative nonproduction environment may be preferable for some scenarios, while differences from production must be documented as limitations.

Should you change penetration testing providers every year?

There is no universal rule. A returning team may understand your architecture and remediation history; a different team may bring a fresh perspective. Evaluate the previous engagement's coverage, evidence quality, communication, and unresolved risks. If you change providers, retain your scope history and findings so the next engagement can test progress instead of losing context.

Conclusion

The best penetration testing company for your organization is the one whose contracted work answers your security questions with clear evidence. Use this shortlist to identify relevant providers, then compare the same scope, assigned expertise, reporting standard, data-handling requirements, and retest terms. Keep specialist needs explicit and treat marketing labels as the start of the conversation.

Ask DeepStrike for a scoped proposal that identifies your assets, testing objectives, deliverables, and retest terms so you can compare it with the same requirements sent to other providers.

About The Author

Mohammed Khalil is a Cybersecurity Architect at DeepStrike, specializing in advanced penetration testing and offensive security operations. With certifications including CISSP, OSCP, and OSWE, he has led numerous red team engagements for Fortune 500 companies, focusing on cloud security, application vulnerabilities, and adversary emulation. His work involves dissecting complex attack chains and developing resilient defense strategies for clients in the finance, healthcare, and technology sectors.

Sources and References

Official service and company pages are identified beside each provider as source addresses. They support the published-offering and US-presence descriptions, not an independent assessment of service quality. The buyer-fit notes, purchasing considerations, and worked proposal comparison are DeepStrike's editorial analysis. Published prices are attributed to their exact offers and review date; they are not comparative test results.

NIST, PCI SSC, HHS, and FedRAMP references appear beside the guidance they support. Service catalogs, staffing, and commercial terms can change; confirm the requirements that matter to your engagement in the final proposal and contract.

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