Holly Website Audit - Free, brandable website audit for your potential clients
Bugcrowd - Harness the largest pool of curated and ranked security researchers to run the most efficient bug bounty and penetration tests
Virusdie - All-in-One cloud-based, simple, powerful and gorgeous website security tools built for everyone.
HackenProof - The world trusted Bug Bounty Platform for crypto projects
Indusface AppTrana - AppTrana offers continuous website security with web application scanning, web application firewall, CDN and DDoS protection.
Axonius - Cyber security asset management to see and secure all