Burp Suite by PortSwigger is the industry-standard web security testing toolkit, offering intercepting proxy, automated vulnerability scanning, and a rich BApp extension ecosystem covering the complete security testing workflow from manual testing to CI/CD integration.
HackerOne, founded in 2012 and headquartered in San Francisco, is the world's largest bug bounty and crowdsourced security testing platform, connecting organizations with over 1 million registered ethical hackers and security researchers, with 500K+ valid vulnerabilities reported and $300M+ in bounties paid.
Bugcrowd, founded in 2012 and headquartered in San Francisco, USA, is a leading crowdsourced security testing and bug bounty platform connecting organizations with its rigorously vetted community of security researchers.
OpenVAS (Greenbone) is the world's largest open source vulnerability scanner, initiated by Greenbone Networks in 2008, with over 100,000 NVT test cases providing automated vulnerability detection, compliance assessment, and penetration testing integration.