Security-as-a-Service, or SECaaS, lets you outsource major chunks of your cyber defense to cloud-delivered platforms and managed teams. Instead of standing up hardware, hiring a large SOC, and stitching tools together, you subscribe to services that deliver prevention, detection, response, and compliance outcomes. The model is growing fast thanks to cloud adoption, identity-centric attacks, and the need for around-the-clock coverage. Analysts estimate the SECaaS market at roughly USD 18–20B in 2024, with double-digit growth projected through the next decade, driven by ransomware pressure and board-level focus on resilience.

This guide ranks the top 10 SECaaS providers for 2025. You will learn how each vendor fits into real buyer scenarios, where they are strongest, where alternatives shine, and how to shortlist for your stack. We also include snapshot criteria, sample RFP questions, and internal links to compare SECaaS with MSSP and in-house options.

What is SECaaS

Security-as-a-Service is the delivery of security outcomes through cloud subscriptions, often paired with managed experts. You buy outcomes such as endpoint protection, MDR, identity governance, SASE, email and web security, WAAP, and cloud posture management. Key benefits include rapid deployment, predictable pricing, constant signature and model updates, and access to expertise. Common components include EDR or XDR, identity protection, CASB or SSE, SIEM or log analytics, and incident response retainers.

When to prefer SECaaS over traditional tools

• You need 24 by 7 coverage without hiring a full SOC.
• You are cloud-first, want fast rollout, and prefer Opex to Capex.
• You must standardize controls across distributed offices and remote workers.
• You want integrated platforms for endpoints, identity, and SaaS.

How we picked the top 10

We analyzed recent industry roundups, analyst coverage, and vendor momentum, then mapped providers to buyer outcomes. We weighted:

• Breadth and depth across endpoint, identity, cloud, network, and data.
• Managed detection and response capability, and time to contain.
• Integration with common ecosystems, and marketplace availability.
• Independent validation such as SOC 2, ISO 27001, or public audits. Gartner+

We also scanned current lists and comparisons to fill gaps. Many “top 10” pages are short lists without transparent criteria or buyer fit, so this guide adds methodology, use cases, and decision frameworks.

The Top 10 SECaaS Providers in 2025

Note: The order reflects cross-domain coverage, MDR maturity, ecosystem integration, and market momentum.

1) DeepStrike Boutique Manual-First PTaaS Model

DeepStrike

• Services: DeepStrike delivers 100% manual penetration testing with an in-house team with no reliance on automated scanners. Coverage includes:
  • Web, mobile, and API applications
  • Cloud environments AWS, Azure, GCP
  • Internal and external networks
  • Red team and social-engineering simulations DeepStrike combines human-driven expertise with a Penetration Testing-as-a-Service PTaaS dashboard that enables continuous testing and real-time collaboration.
• Certifications & Compliance: Methodologies follow NIST SP 800-115, ISO 27001, and OWASP. Reports are compliance-ready for:
  • SOC 2
  • ISO 27001
  • HIPAA
  • PCI DSS 11.3 Each report is written to satisfy auditor expectations, reducing friction for security assessments and renewals.
• Pricing:
  • One-off pentests: starting around $5K+ for small web apps
  • Standard engagements: typically $10K $50K depending on scope
  • Subscriptions: Continuous PTaaS plans with unlimited free retesting for 12 months
• Features:
  • Real-time dashboard with Slack, Jira, and ServiceNow integrations
  • Live findings tracking and remediation validation
  • Unlimited retesting included no extra fees
  • Tailored scoping and manual attack-chain methodology for maximum coverage
• Key Strengths:
  • High-touch service from senior OSCP/OSWE-level testers
  • Manual-only methodology identifies logic and chained vulnerabilities automated tools miss
  • Compliance-aligned reports suitable for auditors and executives
  • Continuous PTaaS transparency makes it ideal for modern DevSecOps and compliance-driven teams

DeepStrike is a boutique penetration testing provider combining human expertise with a manual-first PTaaS platform. By focusing on depth, transparency, and continuous testing, DeepStrike stands out as a top recommendation for organizations seeking high-accuracy, compliance-ready, and ongoing security assurance.

2) Palo Alto Networks

Palo Alto

What it is
A unified platform across network security, SASE, XDR, CNAPP, and SecOps. Prisma Access delivers cloud based SASE, and Cortex XDR unifies endpoint, network, cloud, and identity telemetry with AI detection and automated response.

Key features

• Prisma Access SASE with secure web gateway, FWaaS, DLP, and ZTNA, delivered globally for users and sites.
• Cortex XDR for prevention, detection, investigation, and response using endpoint, network, cloud, and identity data.
• Centralized policy and management with Strata Cloud Manager and Panorama options.

Pros

• Broadest single vendor coverage across edge, endpoint, cloud, and SOC workflows.
• Strong AI assisted analytics and large scale threat intel.

Cons

• Licensing can be complex across modules, careful scoping is required.

Pricing cues

• Prisma Access and Cortex are quoted by user, device, or throughput, and via partners. Use official product pages to frame scope before quoting.

3) Microsoft Security

Microsoft Defender for Endpoint

What it is
Security for identity, endpoint, email, data, SIEM, and compliance, built into the Microsoft ecosystem. Entra handles identity, Defender covers endpoint and SaaS, and Defender for Office 365 protects email and collaboration. Microsoft

Key features

• Entra ID for SSO, MFA, conditional access, lifecycle.
• Defender for Office 365 email and collaboration protection, Plan 1 and Plan 2 tiers.
• Sentinel and Defender XDR integrations for investigations, automation, and hunting.

Pros

• Deep integration for M365 and Azure estates, strong identity centric controls.
• Transparent pricing for several components, easy to model Entra and Defender P1 or P2.

Cons

• Best results when you standardize on Microsoft data connectors and device management.

Pricing cues

• Entra ID P1 listed at 6 dollars per user per month, Entra ID P2 listed at 9 dollars per user per month.
• Defender for Office 365 Plan 1 listed at 2 dollars per user per month, Plan 2 commonly 5 dollars per user per month.

4) CrowdStrike

CrowdStrike

What it is
Cloud native EDR or XDR with identity threat protection, cloud workload security, and Falcon Complete MDR options. CrowdStrike

Key features

• Falcon agent for prevention, detection, and response across Windows, macOS, Linux.
• Identity Threat Protection and OverWatch managed hunting for 24 by 7 coverage. CrowdStrike

Pros

• Fast time to value with proven MDR and response playbooks.
• Clear public plan structure for small and mid sized deployments. CrowdStrike

Cons

• For SASE or SSE, pair with a network edge provider such as Zscaler or Cloudflare.

Pricing cues

• Public pricing pages show Falcon Go, Pro, Enterprise device based bundles with trials available. Use the official pricing site for current offers.

5) Fortinet

Fortinet

What it is
A performance focused portfolio spanning FortiGate NGFW, FortiSASE, secure SD WAN, endpoint, and SOC tooling.

Key features

• FortiGate NGFW with custom security processors for high throughput inspection.
• FortiSASE delivering SWG, FWaaS, CASB, ZTNA, and DLP with unified agent.

Pros

• Very strong value at the edge, broad catalog for branch, campus, and data center.
• Tight integration across SD WAN, SASE, and security services.

Cons

• Price and bundle variety require careful mapping of SKUs to use cases.

Pricing cues

• Public reseller listings for FortiSASE show per user subscription bands that vary by tier and term, useful as directional ranges before vendor quotes

6) Cisco Security

CISO

What it is
Cisco Umbrella delivers cloud based secure internet access, combining SWG, DNS security, cloud delivered firewall, CASB, and DLP. Cisco Secure Endpoint adds EDR with Talos threat intelligence. Cisco Umbrella+1

Key features

• Umbrella Secure Internet Gateway with full proxy SWG, URL and app controls, threat protection, and integrated DLP options. Cisco Umbrella+1
• Secure Endpoint with advanced EDR and optional managed hunting. Cisco

Pros

• Excellent fit for network centric programs and hybrid branches.
• Clear SSE building blocks inside Umbrella, easy to phase adoption.

Cons

• Pricing is package based and often quote only, plan evaluation takes a bit of discovery.

Pricing cues

• Cisco publishes Umbrella package overviews, third party pricing explainers indicate subscription pricing per user with package and term variables, use as directional only and verify with Cisco.

7) Zscaler

Zscaler

What it is
A category leader in SSE and SASE, with ZIA for secure internet and SaaS access and ZPA for Zero Trust access to private apps. Zscaler

Key features

• ZIA modules, AI powered SWG, DLP, CASB, sandboxing, browser isolation, posture control. Zscaler
• ZPA for ZTNA, user to app segmentation, direct connectivity, and lateral movement reduction. Zscaler

Pros

• Proven global scale with user friendly access, strong data protection and SaaS controls.
• Deep admin documentation and deployment patterns.

Cons

• Endpoint response requires an EDR partner, plan your integrations.

Pricing cues

• Zscaler lists product plans, most pricing is quote based. Independent 2025 pricing overviews cite ranges by module and edition, helpful as a benchmark before quotes.

8) Cloudflare

CloudFlare

What it is
A global edge platform for WAAP, DDoS, bot management, API security, and Zero Trust access and gateway controls. Cloudflare

Key features

• Cloudflare WAF blocking OWASP Top 10 attacks and many account takeover patterns, with managed and custom rules. Cloudflare
• Zero Trust platform for secure access and gateway, documented per seat plans. Cloudflare

Pros

• Simple to pilot, transparent plan pages for Zero Trust, broad edge network. Cloudflare
• Strong WAAP documentation and frequent feature updates. Cloudflare Docs

Cons

• Enterprise WAAP and API security are quoted by traffic, scope, and features.

Pricing cues

• Zero Trust shows Free, Pay as you go at 7 dollars per user per month, and contract plans, WAF is included on Business or Enterprise web plans

9) Check Point

CHECK POINT

What it is
A mature portfolio across gateways, endpoint, email, and cloud, managed under Harmony and CloudGuard brands. Check Point Software

Key features

• Harmony Email and Collaboration for phishing, malware, and BEC protection for M365 and Google Workspace. Check Point Software
• Quantum gateways and CloudGuard for hybrid network and cloud protection.

Pros

• Policy driven approach with consolidated management, strong prevention focus.
• Good fit for regulated environments.

Cons

• Some functions priced per user or per app, careful SKU selection is important.

Pricing cues

• Public reseller listings for Harmony Email show per user per year ranges, use as indicative only and verify with Check Point

10) Netskope

NetSkope

What it is
An SSE and SASE specialist with deep CASB, inline SWG, ZTNA, and DLP for data protection across SaaS, web, private apps, and devices. Netskope

Key features

• Netskope One SSE for granular, adaptive controls with single pass architecture. Netskope
• CASB for discovery, governance, and shadow IT control, integrated with DLP and threat protection. Netskope

Pros

• Strong SaaS governance and unified data protection across channels.
• Fresh public credibility from the 2025 IPO, with coverage of proceeds and valuation. Reuters

Cons

• Email security depth and endpoint response are not primary focus areas, plan integrations.

Pricing cues

• Netskope sells by user and module, official product pages focus on features rather than list price. IPO news confirms scale and momentum for due diligence

11) Okta

Okta

What it is
Identity as a Service for workforce and customer identities, with SSO, MFA, lifecycle automation, and thousands of integrations. Okta

Key features

• Workforce Identity Cloud with SSO, MFA, Universal Directory, Lifecycle, API Access Management. Okta
• New integrations with Palo Alto Networks for conditional access and SecOps signals. IT Pro

Pros

• Market leading federation and adaptive MFA, wide ISV ecosystem.
• Clear entry level suites for small or mid sized teams with room to scale.

Cons

• Governance and advanced customer identity features increase cost as you grow.

Pricing cues

• Okta publishes plan structures, while many enterprise quotes are custom. Independent 2025 pricing overviews and marketplaces provide directional ranges to start budgeting. Validate against the official pricing page before purchase

Quick comparison table

Quick comparison table

Buyer fit guide

• Microsoft first organizations. Start with Entra and Defender, add Zscaler or Cloudflare for access or WAAP.
• EDR or MDR first. Choose CrowdStrike for rapid containment and add Zscaler or Netskope for SaaS control.
• SSE or SASE consolidation. Palo Alto or Fortinet for one stop security and networking, or Zscaler or Netskope for SSE depth.
• App and API edge. Cloudflare for WAF, DDoS, API security, then integrate identity events from Okta or Entra

Conclusion

The right Security as a Service selection starts with your identity system, device mix, and app footprint. If you are Microsoft centric, start with Entra and Defender. If you need elite endpoint containment, start with CrowdStrike. If you want to standardize access and data protection fast, start with Zscaler or Netskope. For WAAP and API edge, Cloudflare is a strong anchor. Consolidation platforms from Palo Alto Networks and Fortinet can simplify operations for teams that value single vendor coverage. Use the features, pros and cons, and pricing cues above to assemble a short list, then run a 30 day proof with clear success metrics.

FAQs (Frequently Asked Questions)

What is SECaaS?
Cloud delivered security that combines technology and managed expertise to deliver prevention, detection, response, and compliance outcomes.

How does SSE differ from SASE?
SSE focuses on security services like SWG, ZTNA, CASB, and DLP. SASE combines SSE with SD WAN or networking. Zscaler documentation and data sheets outline module groupings clearly.

What should I budget for?
Vendors price by user, device, or throughput, plus data retention and support tier. Use the pricing cues cited above to set a target band, then request 12, 24, and 36 month quotes.

Which two vendors make a strong starter stack?
Common pairs are CrowdStrike plus Zscaler, Microsoft Security plus Palo Alto Networks, or Cloudflare plus Okta. Fit depends on identity system, device fleet, and where your apps live.