Bugcrowd - Harness the largest pool of curated and ranked security researchers to run the most efficient bug bounty and penetration tests
HackerOne - HackerOne provides a platform designed to streamline vulnerability coordination and bug bounty program by enlisting hackers.
HackenProof - The world trusted Bug Bounty Platform for crypto projects
Forcepoint Web Security Suite - Internet Security
Axonius - Cyber security asset management to see and secure all
Acunetix - Audit your website security and web applications for SQL injection, Cross site scripting and other...