Cobalt
Offensive security testing for security and development teams.
533 employees · est. 2013 · San Francisco, United States
HackerOne
HackerOne makes security continuous. We unite AI and human insight to expose risk and eliminate it.
6712 employees · est. 2012 · San Francisco, United States
HackerOne is the older company (2013 vs 2012); HackerOne is the larger of the two.
3 signals in the last 90 days
Side-by-Side Comparison
| Metric | Cobalt | HackerOne |
|---|---|---|
| Founded | ||
| Founded | 2013 | 2012 older |
| Headquarters | ||
| Headquarters | San Francisco, United States | San Francisco, United States |
| Employees | ||
| Employees | 533 | 6712 larger |
| Industry | ||
| Industry | Applications, Cloud Infrastructure, Cyber Security | Cyber Security, IT, Internet |
| Funding Stage | ||
| Funding Stage | Series B | Series E |
| Total Funding | ||
| Total Funding | $36.97M | $159.40M |
| Funding Rounds | ||
| Funding Rounds | 7 | 5 |
| Services | ||
| Services | Pentesting Services, Application Security Testing, Network and Cloud Security, InfoSec & SOC Services, Dynamic Application Security Testing (DAST) | Bug Bounty Programs, Pentest as a Service, AI and Human Insight, Vulnerability Discovery and Management, Expert Code Review, AI Red Teaming |
| Target Customers | ||
| Target Customers | Small Business, Enterprise, Developers, IT Security Teams | Automotive & Transportation, Crypto & Blockchain, Financial Services, Public Sector, Healthcare, Retail & E-Commerce, Hospitality & Entertainment, US and UK Government |
| Taxonomy | ||
| Taxonomy | Pentesting As A Service, Offensive Security Services, Vulnerability Management, Web Application Security, Mobile Application Security, API Security, Security Platform, Real-time Collaboration, Risk Mitigation, Security Workflows, Agile Security Solutions, SaaS Security Solutions, Security Program Development, Pentest Automation | Continuous Threat Exposure Management, AI Security Testing, Bug Bounty Programs, Vulnerability Disclosure, Agentic Pentesting, AI Red Teaming, Code Security, Security Researchers Community, Cyber Risk Management, Threat Discovery And Remediation, Digital Ecosystem Protection, Ethical Hacking, Security Vulnerability Mediation |
| Website | ||
| Website | cobalt.io | hackerone.com |
About Cobalt
Cobalt, founded in 2013, is a pioneering force in pentesting as a service, seamlessly integrating into the expanding cyber security landscape. Its focus on offensive security has carved out a niche among security and development teams, providing solutions that marry talent with technology for superi...
About HackerOne
HackerOne is a key player in the Cyber Security industry, specializing in Continuous Threat Exposure Management (CTEM). Founded in 2012, the company has positioned itself as a leader by integrating AI and human expertise to uncover, prioritize, and mitigate risks across software systems globally. It...
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Funding, hiring, leadership and stack changes at Cobalt and HackerOne — by email.
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Compiled from the BounceWatch company index. We last looked at Cobalt on 15 Mar 2026, and HackerOne on 29 Mar 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.