Sinus Institute of San AntonioLogo Design Contest Logo Design Contest Contests / Sinus Institute of San Antonio Sinus Institute of San Antonio has selected their winning logo design. For $300 they received 158 designs from 33 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by jkibler77 Return to Contest Return to Contest New #73 Discussion No comments yet.