Sentinel Security SystemsLogo Design Contest Logo Design Contest Contests / Sentinel Security Systems Sentinel Security Systems has selected their winning logo design. For $375 they received 133 designs from 16 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by lin Return to Contest Return to Contest Withdrawn New #84 Withdrawn Prefers others. #85 Withdrawn Prefers others. #83 Withdrawn Prefers others. #82 Withdrawn Prefers others. #7 Withdrawn Prefers others. #6 Discussion No comments yet.