Soil O2 SolutionsLogo Design Contest Logo Design Contest Contests / Soil O2 Solutions Soil O2 Solutions has selected their winning logo design. For $275 they received 136 designs from 18 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by Donadell Return to Contest Return to Contest New #103 New #102 New #101 New #100 Discussion No comments yet.