Energy Engines, IncLogo Design Contest Logo Design Contest Contests / Energy Engines, Inc Energy Engines, Inc has selected their winning logo design. For $575 they received 173 designs from 41 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by zeweny4 Return to Contest Return to Contest Withdrawn Prefers others. #54 Withdrawn Prefers others. #48 Withdrawn Prefers others. #47 Withdrawn Prefers others. #12 Withdrawn Prefers others. #5 Discussion pvrajan Client #5 can we see additional color/shade variants as well as refinements of the symbol 13 years ago