Opti O2, LLCLogo Design Contest Logo Design Contest Contests / Opti O2, LLC Opti O2, LLC has selected their winning logo design. For $275 they received 82 designs from 11 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by Bramovic Return to Contest Return to Contest Withdrawn New #64 Withdrawn New #63 Discussion No comments yet.