- Penetration testing (pentest) is critical in Singapore from MAS regulated banks to SMEs to detect and fix vulnerabilities like OWASP Top 10 flaws, SSRF, and insecure APIs before attackers exploit them.
- The top providers include CREST certified, CSRO licensed firms such as Horangi, Wizlynx, P1 Security, and Swarmnetics, plus modern PTaaS platforms like Cobalt and Bugcrowd.
- We compare their services, client focus, certifications, pricing, and reviews, so CISOs and SMEs can choose the right partner.
- Singapore specific compliance requirements MAS TRM, PDPA, and PCI DSS make pentesting a regulatory necessity, not just a best practice.
- Real world case studies (e.g., SSRF exploitation and mobile account takeover) highlight why continuous testing and expert-led pentests are essential in 2025.
Penetration testing or pentesting is a hands on, ethical hacking process that simulates cyberattacks against your systems to uncover exploitable flaws before real criminals do.
In 2025’s threat landscape marked by AI powered attacks and rampant credential theft routine pentests are essential. For example, the 2025 Verizon DBIR notes vulnerability exploitation now causes 20% of breaches, underscoring that unpatched bugs from misconfigurations to SSRF to weak APIs are prime targets. Singapore’s regulators recognize this.
MAS’s Technology Risk Management framework expects regular VAPT for banks and finance firms, and the CSA has launched CREST certification locally to raise pentest quality. In this guide to top penetration testing companies in Singapore, we cover both consulting firms and PTaaS platforms.
We detail each vendor’s services, focus industries, CREST/CSRO/OSCP certifications, and transparent pricing SGD ranges where known. We also examine compliance drivers MAS TRM, PDPA, PCI DSS, common test scopes web, mobile, API/GraphQL, and real world case studies e.g. live SSRF exploits or mobile app account takeovers. Our goal: help CISOs and startup founders find the right, affordable VAPT services for their needs.
Top Penetration Testing Companies in Singapore 2025
- Services Offered: DeepStrike leads the pack as Singapore’s #1 penetration testing provider, offering a full range of pentesting services web, mobile, cloud, APIs, infrastructure, red teaming, and social engineering under one roof. Founded by veteran bug bounty hunters, DeepStrike has a perfect 5.0 rating on Clutch 100% five star reviews across 27 client reviews. Its team holds globally recognized certifications e.g. OSCP, CREST and is licensed under Singapore’s Cybersecurity regulatory framework CSRO License No. 40823.
- Certifications: DeepStrike’s quality is enterprise grade; it meets strict compliance standards MAS TRM, PCI DSS, PDPA, SOC 2, etc. and provides tailored reports to ensure SOC 2 and other regulatory readiness.
- Client Focus: Clients from finance, IT, healthcare, hospitality and other industries trust DeepStrike to penetrate their defenses proactively.DeepStrike’s Pentest as a Service PTaaS delivery is a major differentiator. Unlike one off tests, DeepStrike’s PTaaS model offers continuous security testing with a real time online dashboard and instant collaboration. Customers get immediate visibility into findings Track vulnerabilities and fixes in real time with DeepStrike Dashboard and can interact directly with the Red Team via Slack and issue trackers Jira, ServiceNow. DeepStrike even provides free unlimited retesting of fixed issues to ensure complete closure.
- Pricing Transparency: Its pricing is fully transparent, with a Basic plan for one shot tests and a Premium subscription for ongoing continuous pentesting clear SGD tiers are listed on DeepStrike’s pricing page.
- Customer Reviews:They clearly have built a team of creative, highly skilled experts with deep technical understanding. CTO, Hospitality Company. DeepStrike’s work was highly thorough and effective. CTO, Flower Arrangement Company
In summary, DeepStrike is the #1 ranked pentest firm in Singapore. Its manual testing focus Forget automated pentesting. Our team operates like real threat actors, real time PTaaS platform, and excellent client feedback sets it apart. The combination of 24/7 PTaaS support, compliance expertise, and top tier talent makes DeepStrike the top choice for Singapore organizations.
Horangi Security
- Services Offered: Horangi is a Singapore based cybersecurity firm known for cloud centric pentesting including AWS, Azure, web/mobile app testing, red teaming, and its proprietary Warden platform for automated continuous assessments. Its CREST certified team also covers incident response and cloud security consulting.
- Client Focus: Horangi serves large enterprises and regulated clients finance, tech firms, and government. They have strong expertise in cloud and DevSecOps environments, making them a go to for fintech and SaaS companies.
- Certifications: Horangi’s security consultants hold CREST and OSCP certifications, and the firm is CSRO licensed for Singapore pentesting. They were recently acquired by Bitdefender, highlighting global recognition.
- Pricing Transparency: Pricing is typically on a per project basis, reflecting Horangi’s enterprise focus. Their pentest engagements often start at higher ranges e.g. tens of thousands SGD and are quoted per scope.
- Customer Reviews: Horangi has positive client feedback for thoroughness and clear reports Clutch ratings 4.8/5. Customers praise their rapid response and expertise in cloud security.
Wizlynx Group
- Services Offered: Wizlynx is an APAC consultancy with CREST accredited pentest teams in Singapore and beyond. Services include network, web application, and mobile app pentesting, plus IoT and API security tests. They also offer continuous security monitoring and DevSecOps support.
- Client Focus: Wizlynx focuses on medium to large companies, including banks and multinational corporations. They emphasize compliance readiness MAS TRM, PCI DSS, PDPA and have experience in finance and healthcare.
- Certifications: Global CREST accreditation and OSCP/GWAPT on staff; CSRO licensed for Singapore.
- Pricing Transparency: Wizlynx usually provides custom quotes after scoping; public pricing is not available. Astra’s research notes on request. They often bundle pentests into broader security programs for clients.
- Customer Reviews: Clients note Wizlynx’s consultative approach and high technical expertise. Clutch and Google reviews highlight their professionalism and strong reporting.
CyberNX
- Services Offered: CyberNX is a Singapore based firm offering VAPT services network, web/mobile/IoT pentests, red teaming, and security audits. They emphasize compliance pentesting for regulated industries.
- Client Focus: CyberNX works with both SMEs and larger enterprises, especially in finance, government, and healthcare. They market cost effective packages for startups as well as rigorous audits for banks.
- Certifications: Their team includes OSCP and CISSP holders; CyberNX is CSA certified CSRO and is building its CREST accreditation.
- Pricing Transparency: Public pricing is sparse, but standard network pentests start around a few thousand SGD for small scopes. Customized packages are common; they sometimes offer segmented pricing by IP range or application count.
- Customer Reviews: On Trustpilot and Clutch, customers praise CyberNX’s attention to detail and affordability. Some note excellent guidance through the MAS TRM process.
P1 Security Telecom
- Services Offered: P1 Security specializes in telecom security, offering pentests of 2G/3G/4G/5G mobile networks, SS7/GTP protocol tests, as well as IT pentests web, network, cloud. Their CSA license emphasizes telecommunications.
- Client Focus: Telcos, mobile operators, and agencies. P1 helps telecom clients meet GSMA/3GPP standards and MAS guidelines for critical infrastructure.
- Certifications: Now CSA licensed for pentesting in Singapore. Staff hold OSCP, GPEN, and vendor certs e.g. SS7 penetration testing. P1’s CSA announcement specifically cites their CSRO license for pentesting.
- Pricing Transparency: P1’s telecom focus means engagements are custom and often large scale. They do not list prices publicly; costs depend on the network elements tested.
- Customer Reviews: P1 has niche reviews from telecom clients noting their deep protocol expertise. In announcements, they emphasize trust CSA license and global reach, reinforcing confidence in MAS regulated projects.
Swarmnetics Security
- Services Offered: Swarmnetics is a local SG company offering network and application pentesting, social engineering phishing, and red teaming. They also provide vulnerability scanning and security training.
- Client Focus: Focus on financial services, insurance, and govt agencies needing MAS TRM compliance. Swarmnetics positions itself as a government licensed cybersecurity firm.
- Certifications: CSRO licensed CSA Singapore for pentesting. Their team holds CISSP and ethical hacker certs; they are in the process of attaining CREST accreditation.
- Pricing Transparency: Swarmnetics publishes starting prices for SMEs. According to industry research, Singapore pentesting costs from Swarmnetics start at about S$2,500 for basic scope. Complex projects are higher.
- Customer Reviews: Clients on Google and Clutch commend their responsive service and clear communication. One fintech CEO noted Swarmnetics made MAS TRM readiness much smoother.
Cxrus Solutions
- Services Offered: Cxrus now part of AWS Partner programs provides infrastructure and security services, including network and web app pentesting, cloud security architecture reviews, and managed security services.
- Client Focus: Specializes in start ups and SMEs in tech and ecommerce, as well as some enterprise accounts. They often bundle pentesting into AWS deployment packages.
- Certifications: AWS Security Competency partner; their pentesters hold OSCP, CISSP. They are listed on Singapore’s CSRO registry.
- Pricing Transparency: Cxrus usually quotes per project. Entry level web app pentests can start around S$5K, depending on app size, but exact figures are given after scoping.
- Customer Reviews: Clutch reviews highlight Cxrus’s friendly support and quick turnaround, though some note a preference for larger scope clarity.
Firmus Security
- Services Offered: Firmus Malaysia/SG offers a broad suite: network/web/mobile pentesting, digital forensics DFIR, code reviews, and red teaming. They tout award winning expertise CyberSecurity Malaysia awards.
- Client Focus: Targets large corporations and government in SEA. They have serviced banks, telcos, and energy companies in SG and Malaysia.
- Certifications: CREST accredited Malaysia and licensed in Singapore; their staff hold CISSP, OSCP, GPEN, CEH and more. They emphasize CREST membership: Firmus has provided services… since 2008.
- Pricing Transparency: Firmus caters to enterprise budgets; prices are custom. SMEs may find rates on the higher end.
- Customer Reviews: Firmus highlights its awards and long track record. Client feedback Clutch underscores its thorough methodology and industry knowledge.
Customer Reviews and Compliance
Many Singapore companies vet pentest vendors by Clutch or Google reviews. Overall, clients value reports’ clarity and follow up remediation advice. Independent ratings show top vendors with 4+ stars, emphasizing thorough scopes and local regulations knowledge.
Notably, customers often mention adherence to MAS TRM and PDPA compliance e.g., secure handling of personal data as key. In regulated sectors, auditors look for CREST certification and logged test reports to satisfy PCI DSS or SOC 2 criteria. For example, PCI DSS 4.0 explicitly requires annual external/internal pentests covering OWASP 10 risks.
The Singapore PDPA also indirectly demands security data breach penalties to encourage proactive pentesting.
Pricing Insight: Penetration testing cost in Singapore varies by scope. A basic external web app test might start around S$2-5K for SMEs, while full scope enterprise tests networks, apps, social engineering can be S$10K-50K+. Subscription based PTaaS continuous pentesting often costs tens of thousands per year. Always confirm what's included: internal vs external scope, number of IPs/apps, retest allowances, etc.
Common Vulnerabilities and Case Studies
Leading pentesters test against known weaknesses. The OWASP Top 10 highlights the most critical web flaws worldwide e.g. Injection, Broken Auth, Misconfiguration. Singapore companies frequently encounter issues like security misconfiguration now #5 in OWASP Top 10, insecure APIs including GraphQL, and SSRF vulnerabilities which OWASP newly added as A10 in 2021. Mobile apps often suffer from improper deep link handling or token leaks.
For instance, a real world pentest on a monitoring service discovered a blind SSRF bug. Testers used octal IP representation and open redirect chaining to bypass filters and hit a cloud metadata service, showing how simple misparsing can expose internal data. In another engagement, deep link URL flaws and open redirects in a mobile app led to full account takeover.
by exploiting path traversal and an open redirect, attackers could steal access tokens and hijack sessions. These examples demonstrate that pentests must combine automated scanning with creative human tests to chain minor issues into serious breaches. See our internal links for in depth Real life SSRF attack examples and a Real world account takeover case study.
In summary, pentesting targets everything from email/VPN endpoints external tests to internal networks internal tests. It often includes web apps OWASP 10, mobile APIs OAuth flows, GraphQL endpoints, wireless networks, and even social engineering. Continuous pentesting platforms can even integrate with DevOps to find freshly introduced bugs.
Why Pentesting Matters for Singapore Businesses
Given Singapore’s heavy regulation of technology risks, pentesting is not optional. MAS TRM and other national standards expect comprehensive testing of systems that handle financial or personal data. Singapore’s PDPC guidelines view pentesting as a key control for PDPA compliance. Compliance driven pentesting ensures that controls are not just in place, but proven effective. Moreover, with cybercriminals favoring credential theft and vulnerability scans, proactive testing shifts defense from reactive to preventative.
Whether you’re an enterprise or SME, a custom pentest can reveal hidden risks before they become disasters. Ready to test your security? Contact DeepStrike to discuss penetration testing services for businesses or set up a free consultation on continuous pentesting solutions. Our experts will help you meet MAS TRM and PDPA requirements, all within your budget and schedule.
How much does penetration testing cost in Singapore?
Short answer: small web app scopes often start at S$2-5k; complex multi asset programs (internal+external+apps+social) can run S$10k-S$50k+. Continuous PTaaS typically sits in the five figure SGD/year range. (Clarify your public tiers if you can.)What affects cost? Asset count, auth/roles, API/GraphQL depth, environment (cloud/on prem), and retesting.
Which penetration testing companies are CREST certified and CSRO licensed in Singapore?
Look for CSA/CSRO licence (legal to offer pentesting in SG) and CREST accredited teams for assurance, then shortlist by your scope (web, mobile, API, cloud, red team).
What’s the difference between PTaaS and one off VAPT?
- One off pentest: point in time, great for annual compliance and major releases.
- PTaaS: continuous testing + dashboard + CI/CD retests best for agile teams with frequent deploys.
How often should Singapore orgs pentest?
- MAS regulated FIs: at least annually for internet facing systems and after significant changes; add adversarial/red team exercises.
- PCI DSS: at least annually and after significant changes (external, internal, segmentation).
- PDPA: no fixed interval, but PDPC decisions show expectation of periodic reviews; firms have been directed to perform VA/PT after incidents.
What is the difference between a penetration test and a vulnerability scan?
A vulnerability scan is automated software that lists potential issues known CVEs, missing patches, etc., but it often misses complex flaws. A penetration test is manual, combining scanning with an expert hacker’s creativity. Pentests prove exploitability e.g., they can chain multiple low risk bugs like an OAuth misconfig and SSRF into a high impact breach.
Why choose a CREST certified pentest provider?
CREST accreditation in Singapore, CREST certified penetration testing means the company meets global standards for quality and ethics. You’ll have certified testers on your engagement. This gives assurance to regulators and auditors in MAS regulated sectors. CREST providers often use standards like NIST SP 800 115 in their methodology.
How often should Singapore organizations conduct pentests?
Key guidelines: MAS TRM expects annual or more frequent tests for critical systems. PCI DSS mandates at least annual external/internal tests. For fast moving businesses, we recommend continuous pentesting or at least quarterly scans, plus pentests after any major change. Always align testing frequency with your compliance needs and threat model.
What does pentesting cost in Singapore?
Costs vary by scope. Basic web app tests may start around S$2,000-5,000, while full scale enterprise assessments can run into tens of thousands. Some platforms PTaaS offer subscription models e.g. continuous testing packages for S$15K+ per year. Always ask the vendor for a clear price range based on your specific assets.
Do SMEs really need pentesting?
Yes. Even small businesses hold sensitive customer data and face cyber risks. A breach can damage reputation and invite fines, PDPA, PCI penalties. SMEs can often start with targeted tests like a web app and employee phishing at modest cost. Many providers tailor packages for startups just to ensure they have the right certifications and report quality.
What is Pentest as a Service PTaaS?
PTaaS is a modern delivery model where testing is ongoing and managed via a platform. Instead of one off audits, PTaaS blends automated scanning with crowdsourced or dedicated testers, giving you continuous dashboards and retest support. Cobalt.io and HackerOne are examples of PTaaS or crowd testing providers. PTaaS can be more flexible and faster than traditional pen tests.
How do I test APIs and mobile apps?
Look for vendors offering specialized API penetration testing Singapore or mobile app pentest services. Experts will test API endpoints including GraphQL/REST for logic flaws, auth bypass, and injection, and mobile apps for insecure data storage or deep link flaws. Always verify the tester has done OAuth/API attacks before see OAuth security best practices and GraphQL API security and testing guides.
About the Author
Mohammed Khalil is a Cybersecurity Architect at DeepStrike with over a decade of experience in penetration testing and secure development. He has led red team exercises and pentest projects for Asian financial and tech companies, and co authored this guide to help businesses strengthen their security posture.
