CodeSignal - CodeSignal is the leading assessment platform for technical hiring.

OfferZen - Offerzen is a job portal connecting employers and programmers.

Codejudge - Automate tech hiring with simulated real world assessments

CodeGuild - CodeGuild serves as a network of professionals and specializes in recruitment within software engineering market.

HackerRank - HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.

Zlott - Zlott analyses open source contributions of developers and helps companies connect with right matches for their engineering team