Signum CellularLogo Design Contest Logo Design Contest Contests / Signum Cellular Signum Cellular has selected their winning logo design. For $575 they received 198 designs from 34 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by Enthusiast Return to Contest Return to Contest Withdrawn New #141 Withdrawn New #140 Withdrawn New #139 Discussion No comments yet.