Piedmont Hydro Technologies,LLCLogo Design Contest Logo Design Contest Contests / Piedmont Hydro Technologies,LLC Piedmont Hydro Technologies,LLC has selected their winning logo design. For $300 they received 81 designs from 19 different designers from around the world. Find out how LogoTournament works How LogoTournament works Contest Entries by ArtOne Return to Contest Return to Contest Withdrawn New #2 Discussion No comments yet.