HackerOne

HackerOne is the world's largest ethical hacker-powered security platform, headquartered in San Francisco, California, providing bug bounty, vulnerability disclosure, and penetration testing services to organizations worldwide. Founded in 2012 by security leaders including Merijn Terheggen and former hackers, HackerOne has built a community of over one million registered security researchers and has facilitated the discovery of over 300,000 valid vulnerabilities. Their platform has paid out over $300 million in bounties, making it the most financially impactful crowdsourced security initiative in history.

Beyond traditional bug bounties, HackerOne offers HackerOne Pentest, which pairs curated teams of vetted security professionals with organizations for structured penetration testing engagements delivered through their platform. HackerOne serves an impressive roster of clients including the US Department of Defense, General Motors, Goldman Sachs, Microsoft, and many other Fortune 500 companies and government agencies. Their Hack the Pentagon program, launched in 2016, was the first bug bounty program run by the US federal government.

The company provides real-time dashboards, integration with development tools, and analytics that help organizations track their vulnerability management posture over time.