Shapeways - Shapeways - 3D Printing Service and Marketplace
FeedbackSpark - FeedbackSpark is in-product micro survey tool that helps product teams to remove guesswork from product development. Harness the voice of customer to drive product success.
3D Hubs - Airbnb for 3D printing
Zazzy - Design and sell your own 3D printed jewelry
i.materialise - i.materialise is an online 3D printing service, community and marketplace.
Love & Robots - Create your own 3D printed jewelry & accessories online