BountyFactory

BountyFactory, which touts itself as the first European bug bounty platform that relies on European rules and legislation, is run by the larger YesWeH4ck group, an Infosec recruiting company founded in 2013 that's made up of a bug bounty platform, a job board (YesWeH4ck Jobs), a coordinated vulnerability-disclosure platform (ZeroDisclo), and an aggregation of all public bug bounty programs (FireBounty). Like Bugcrowd and HackerOne, BountyFactory has a scoring system, leaderboard, and both public and private programs, for which it extends a limited number of invitations.

Because of its European orientation, BountyFactory is great for finding companies, such as OVH, Orange, and Qwant, that aren't on the popular, American-run alternatives. Many of its clients are straight out of the French start-up scene.