Stratasys subsidiaries include MakerBot and Solidscape and the Stratasys ecosystem includes 3D printers producing prototypes and parts; a wide range of 3D printing materials; parts on-demand via Stratasys Direct Manufacturing; strategic consulting and professional services; and Thingiverse/GrabCAD communities with 5+ million free design components, printable files.
Take context from the input text and decide on the accurate relationship between 'Stratasys' and '3D printing' from the options provided.
Options: stock exchange, product/material produced, founded by, owner of