Shapeways - Shapeways - 3D Printing Service and Marketplace
Mockupify - Automate your print-on-demand product creation process
3D Hubs - Airbnb for 3D printing
Muglaunch.com - Design and sell print on demand products easily @ Muglaunch
i.materialise - i.materialise is an online 3D printing service, community and marketplace.
Revscale - Sales Automation - A holistic sales & mkt automation and B2B lead generation software