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
Immunefi
Immunefi — One Platform. Unified Security Operations. Complete Onchain Protection
137 employees · est. 2020
HackerOne is the older company (2012 vs 2020); HackerOne is the larger of the two.
3 signals in the last 90 days
Side-by-Side Comparison
| Metric | HackerOne | Immunefi |
|---|---|---|
| Founded | ||
| Founded | 2012 older | 2020 |
| Headquarters | ||
| Headquarters | San Francisco, United States | Not tracked yet |
| Employees | ||
| Employees | 6712 larger | 137 |
| Industry | ||
| Industry | Cyber Security, IT, Internet | Not tracked yet |
| Funding Stage | ||
| Funding Stage | Series E | Series A |
| Total Funding | ||
| Total Funding | $159.40M | $29.50M |
| Funding Rounds | ||
| Funding Rounds | 5 | 2 |
| Services | ||
| Services | Bug Bounty Programs, Pentest as a Service, AI and Human Insight, Vulnerability Discovery and Management, Expert Code Review, AI Red Teaming | Unified Security Operations, Bug Bounty Programs, Code Review Agent, Multisig Transaction Review, Security Audits and Audit Competitions, Onchain Monitoring and Threat Detection |
| Target Customers | ||
| Target Customers | Automotive & Transportation, Crypto & Blockchain, Financial Services, Public Sector, Healthcare, Retail & E-Commerce, Hospitality & Entertainment, US and UK Government | Blockchain Protocol Teams, Web3 Security Researchers, Decentralized Finance (DeFi) Projects, Smart Contract Developers, Cryptocurrency Platforms |
| Taxonomy | ||
| Taxonomy | 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 | Onchain Security, Crowdsourced Security, Bug Bounty Platform, Security Operations, Blockchain Security, Vulnerability Management, Smart Contract Auditing, Crypto Project Protection, Web3 Security, Automations Engine, Vulnerabilities Dataset, Security Researchers Community, Network Hosting, Bug Triaging, Program Management |
| Website | ||
| Website | hackerone.com | immunefi.com |
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...
About Immunefi
Immunefi is at the forefront of onchain security, offering a platform that integrates numerous security operations for blockchain protocols. Founded in 2020, this crowdsourced platform has already forged significant partnerships with major players like Chainlink, Ethereum Foundation, Optimism, and A...
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BounceWatch watches HackerOne and Immunefi for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at HackerOne and Immunefi — by email.
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Compiled from the BounceWatch company index. We last looked at HackerOne on 29 Mar 2026, and Immunefi on 8 Jan 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.