RECS International is a group of market participants that trade in renewable energy certificates throughout Europe. It started in 2001, as a voluntary initiative to create a uniform system for cross-border certificate trading, and there are now more than 250 members trading certificates in over 22 (mostly European) countries.

To protect its investment in a secure, workable and efficient market, RECS works closely with the Association of Issuing Bodies (AIB), holding quarterly international meetings and sponsoring workshops and open seminars.

In addition, RECS International effectively lobbies national and European governments for harmonisation of the pan-European market for certificate trading.