DecarbonizeLogo Design Contest Logo Design Contest Contests / Decarbonize Decarbonize has selected their winning logo design. For $275 they received 52 designs from 7 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by DesignHouse Return to Contest Return to Contest 3rd #5 Withdrawn New #4 Withdrawn New #6 Discussion No comments yet.