Synack and Cobalt helped popularize penetration testing as a service (PTaaS): a platform where you scope a test, vetted testers start within days, findings appear in a dashboard as they are confirmed, and fixes are retested without a new contract. The model has become the default for software companies that ship weekly and need audit evidence more than once a year. But the market has moved. Synack merged with NetSPI in October 2026, and many buyers are using the change in the landscape to compare pricing models, tester pools and reporting before their next renewal.
The stakes keep rising. Attackers now use AI to scan for exposed assets and chain known vulnerabilities faster than a yearly test cycle can keep up with, and several PTaaS providers have responded by pairing human testers with AI agents for reconnaissance and repeat validation. If you are still deciding between a platform and a classic consultancy, start with our guide to PTaaS vs traditional penetration testing.
The ten providers below are real alternatives to Synack and Cobalt: crowdsourced platforms, hybrid human and AI services, and specialist firms that deliver testing through their own portals. Each was checked against its own website for services and location.
Synack And Cobalt Alternatives At A Glance
Company
Headquarters
Best For
Core Services
HackerOne
San Francisco, USA
Teams wanting PTaaS and bug bounty on one platform
Organizations wanting deep manual testing with retest support
Continuous pentesting, application, cloud and red team testing
Pentest People
Leeds, United Kingdom
UK firms needing CREST and CHECK testing
PTaaS, GuardNest vulnerability management portal
Best Synack And Cobalt Alternatives For 2027
1. HackerOne — Human-Reviewed Agentic Pentests With A Live PTaaS Dashboard
HackerOne, founded in 2012 and headquartered in San Francisco, is best known for bug bounty programs, but its Pentest product is a full PTaaS offering. Engagements start with scoping, assisted by the HackerOne Pentest Scoping Assistant, and testers are matched to the asset type and technology stack. It suits companies that want structured pentests for compliance today and the option to run a bug bounty or vulnerability disclosure program on the same platform later.
What stands out is how HackerOne blends AI with people. On supported web application tests, AI agents may handle reconnaissance and repeatable validation, but human pentesters review every agent finding before it is reported. Results appear in the PTaaS dashboard during the test so remediation can start early, and the final report includes proofs of concept and fix guidance that HackerOne says supports SOC 2, ISO 27001 and GDPR due diligence. Integrations with GitHub, Jira, Slack and ServiceNow keep findings inside your engineering workflow.
2. Bugcrowd — PTaaS Informed By External Attack Surface Data
Bugcrowd was founded in Sydney in 2012 and lists headquarters in San Francisco and Sydney. Its platform covers PTaaS, bug bounty, vulnerability disclosure, red team as a service and attack surface management, so a single vendor can handle both scheduled tests and always-on crowdsourced coverage. It suits companies that need pentests mainly to meet compliance goals but want those tests aimed at the assets attackers can actually see.
The differentiator is the link between attack surface management and testing: Bugcrowd describes its PTaaS as informed by external attack surface data, which helps scope tests around forgotten hosts and shadow assets. Specialized tests cover web apps, mobile apps, networks, APIs, IoT and cloud, and the company offers an AI pen test plus an agentic product, Savant Pathseeker, in early access. Its CrowdMatch feature handles researcher selection, so ask in the sales process how testers are vetted and matched for your stack.
3. Intigriti — EU-Hosted PTaaS And Bug Bounty Platform
Intigriti lists offices in Antwerp, Belgium, and London, and is one of the main European crowdsourced security platforms. Its PTaaS lets customers launch tests in days, work directly with expert researchers and receive results that flow into existing security tools. The same platform runs bug bounty programs, vulnerability disclosure programs and live hacking events, so companies can pair deep on-demand pentests with continuous coverage.
What sets Intigriti apart for many buyers is data location. The company states that customer data is hosted exclusively in Europe, with application-layer encryption and a strong focus on GDPR and EU legal compliance. For European companies, public sector suppliers or US firms selling into the EU, that can remove a procurement obstacle that US-hosted platforms face. It is a good fit when data sovereignty is as important as tester quality.
4. YesWeHack — Crowdsourced Testing Plus Agentic Pentest From Paris
YesWeHack, founded in 2015 and headquartered in Paris, runs a crowdsourced platform where a global community of ethical hackers tests customer assets for vulnerabilities. Bug bounty pricing is tied to valid findings, which keeps spend aligned with results. Alongside bug bounty, the platform offers an agentic pentest product, vulnerability disclosure programs, and exposure and vulnerability management features.
It suits buyers who want a European alternative to the large US platforms and who plan to combine scheduled pentesting with ongoing crowd coverage. Integrations with ticketing and vulnerability management tools let findings move straight into the backlog. Because YesWeHack pairs automated testing with its researcher community, ask how each part of a test is delivered and how findings are validated before they reach your team, so you can compare it fairly with fully human-led PTaaS options.
5. BreachLock — CREST-Certified Pentesters Plus Breach360 Agentic Testing
BreachLock lists its US office in New York and a Dutch entity in Amsterdam. It offers two testing modes on one platform. Human-delivered PTaaS uses CREST-certified pentesters for new launches, compliance work and complex business logic, with findings verified and ranked before release. Breach360 is the autonomous option, using agentic AI to run attacks from reconnaissance through lateral movement, with live screenshots of each step and a working exploit for every confirmed finding.
The strength is audit readiness. BreachLock lists CREST, ISO 27001 and AICPA SOC accreditations and maps testing to PCI DSS, HIPAA, GDPR, ISO 27001, SOC 2 and NIST. The unified platform keeps assets, findings and test results in one data model, with attack path views and unlimited retesting. Customers set scope, approve lateral moves and can stop autonomous testing with a kill switch, which gives cautious teams control over how far AI-driven tests go.
6. Bishop Fox — Cosmos Continuous Offensive Security Platform
Bishop Fox lists its global headquarters in Tempe, Arizona. It is an offensive security firm with a broad services catalog: application, AI and LLM, cloud, hardware, network and mobile pentesting, secure code review, red teaming, social engineering and ransomware readiness. It suits companies with a mature security program that want one partner for continuous testing and deeper adversary simulation.
The platform is Cosmos, formerly called CAST, which Bishop Fox describes as a continuous offensive security platform. Cosmos covers attack surface discovery, testing of exposed assets and emerging threat testing, and its Cosmos AI engine supports AI-powered penetration testing. Unlike crowdsourced platforms, testing is done by Bishop Fox staff, which some buyers prefer for consistency and confidentiality. It is a strong option when you want PTaaS-style continuity but expect the depth of a specialist consultancy.
7. Sprocket Security — Continuous Pentesting With Unlimited Free Retests
Sprocket Security is based in Madison, Wisconsin, and focuses on continuous penetration testing rather than point-in-time engagements. AI agents handle discovery, reconnaissance and exploitation under a published safety framework, while human testers confirm what is real, follow genuine attack paths and provide proof of exploitation. After an initial baseline, findings arrive steadily and are tied to real changes in your environment.
The commercial model stands out: once a fix is marked ready, Sprocket retests it at no extra cost, without new scope or a new contract. Attack surface management continuously discovers domains, IP addresses, services and forgotten subdomains and feeds them into testing, and ASM can be started free. Sprocket can run alongside an existing annual test, and it provides attestation letters for SOC 2, PCI DSS, HITRUST and ISO 27001 audits. See our list of continuous penetration testing providers for more options in this model.
Software Secured is a Canadian firm with its office in Ottawa, Ontario. Its PTaaS is built for B2B SaaS companies, particularly high-growth firms from Series A through IPO, and delivers ongoing manual pentests aligned to release cycles, so new features and updates are tested as they ship. Its consultants work across five time zones.
The focus on SaaS sales is the differentiator. Software Secured frames testing around proving compliance and supporting enterprise deals, which matters when security questionnaires are slowing down your pipeline. Unlimited retesting and premium portal features for tracking progress and compliance are included in the PTaaS offering. Because testing is manual and done by the firm’s own consultants rather than a crowd, it suits product teams that want a consistent tester relationship and findings that reflect their actual business logic.
9. Packetlabs — Continuous Penetration Testing With Advisory Support
Packetlabs is headquartered in Toronto, with additional offices in San Francisco and Sydney. It is a penetration testing company covering infrastructure, cloud, IoT and attack surface testing, application testing for web, API, mobile, AI and LLM and thick client software, and adversary simulation including red teaming, purple teaming, assumed breach and social engineering. It suits organizations that want deep testing across many asset types from one firm.
Its Continuous Penetration Testing service extends beyond a single engagement with retesting, advisory support and ongoing insight, which gives buyers the cadence of PTaaS while keeping a consultancy relationship. Packetlabs also offers security assessments such as dark web exposure, CIS benchmark audits, OT cybersecurity and cyber maturity reviews. That breadth makes it a sensible choice when the pentest program needs to feed a wider improvement plan rather than only produce a report for auditors.
10. Pentest People — CREST And CHECK PTaaS With The GuardNest Portal
Pentest People is a UK penetration testing firm with its office in Leeds, now operating as part of WorkNest. It has been a CREST member for more than 11 years and maintains NCSC CHECK, ISO 27001 and Cyber Essentials accreditations. Its testing is delivered through a PTaaS methodology and proprietary platforms, which makes it a good fit for UK companies and public sector suppliers that need accredited testers.
Its client portal, previously called SecurePortal, now operates as the GuardNest vulnerability management platform, where customers track findings and remediation between tests. The CHECK accreditation matters for organizations that handle government systems, since not every PTaaS platform can offer it. For UK buyers who want platform-style reporting with an accredited local team, Pentest People is a practical alternative to the large crowdsourced platforms.
How To Choose A PTaaS Provider
Most PTaaS platforms look similar in a demo. These questions expose the differences that matter after the contract is signed.
Who Actually Does The Testing?
Crowdsourced platforms draw on external researchers, while firms like Bishop Fox, Software Secured and Packetlabs use their own staff. Ask how testers are vetted, whether background checks are available, and whether the same testers return for retests.
How Much Of The Test Is Automated Or AI-Driven?
Many providers now use AI agents for reconnaissance and validation. That can add coverage, but you should know which findings were confirmed by a human and how safe exploitation is controlled in production. Our list of automated penetration testing platforms covers tools that run mostly autonomously.
Will The Report Satisfy Our Auditors?
Check that reports and attestation letters map to the frameworks you report against, such as SOC 2, PCI DSS, ISO 27001 or HIPAA, and ask for a sample report before you buy.
Are Retests Included?
Unlimited or included retesting is common but not universal. Confirm how quickly retests start and whether they require new scoping or credits.
Where Is Our Data Stored?
Findings describe your weakest points. If you have EU customers or regulatory limits, ask where vulnerability data is hosted and who can access it.
Conclusion
Synack and Cobalt are not the only routes to platform-based pentesting. HackerOne, Bugcrowd, Intigriti and YesWeHack offer crowdsourced scale with bug bounty options, BreachLock and Sprocket Security combine human testers with AI-driven continuous testing, and Bishop Fox, Software Secured, Packetlabs and Pentest People deliver PTaaS-style programs through their own experienced teams. Pick based on who tests, how findings are validated and how well reports fit your audits. For a wider view of the market, see our list of penetration testing companies.
