EFRC:CSTLogo Design Contest Logo Design Contest Contests / EFRC:CST EFRC:CST has selected their winning logo design. For $350 they received 137 designs from 24 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by Energy Return to Contest Return to Contest Withdrawn New #111 Withdrawn New #115 Prefers others. #116 Discussion No comments yet.