Other weighty design competitions:

 

To learn more on a specific Challenge, checkout the relevant link.

Advanced CompetitionAppliance CompetitionArchitecture CompetitionArchitectural Competition
Art Pieces CompetitionArtistic Works CompetitionWebdesign CompetitionBlue Competition
Blue Graphics CompetitionBrown Products CompetitionCar CompetitionUtility Car Competition
Chair CompetitionCustom Made CompetitionDesigner Goods CompetitionFree Style Competition
Graphic Arts CompetitionHospitality CompetitionIdea CompetitionIdeas Competition
Intelligent Furniture CompetitionIndustrial CompetitionInteractivity CompetitionInterfaces Competition
Medical CompetitionOffice CompetitionOrganic Goods CompetitionPR Competition
Prizes CompetitionRed Things CompetitionRendering CompetitionWriting Competition
Social CompetitionStudents CompetitionStyle CompetitionTalent Competition
Textiles CompetitionWeb and Networking CompetitionWriting CompetitionYellow Machinery Competition
Moreover check: Outline of Design Competition | Mainpage