Question: who is the best 3d printing company?
Answer: HP (NYSE:HPQ) Market cap: US$23.95 billion. ...  Proto Labs (NYSE:PRLB) Market cap: US$2.91 billion. ...  Materialise (NASDAQ:MTLS) Market cap: US$1.21 billion. ...  Stratasys (NASDAQ:SSYS) Market cap: US$823.63 million. ...  3D Systems (NYSE:DDD) ...  ExOne (NASDAQ:XONE) ...  SLM Solutions Group (FWB:AM3D) ...  Nano Dimension (NASDAQ:NNDM)