Buy 3D Printing Stocks. If you’re in the first category, looking to buy shares in 3d printing stocks that are entirely invested in this tech, then take a look at the following stocks: Stratasys (NASDAQ:SSYS): 3D printing has only really grabbed consumer attention in the last couple years or so. However, Stratasys has been around since 1989. The best publicly-listed 3D printing companies 1. 3D Systems (NYSE: DDD) 2. Proto Labs (NYSE: PRLB) 3. Stratasys (NASDAQ: SSYS) 4. Materialise (NASDAQ: MTLS) 5. Nano Dimension (NASDAQ: NNDM) 6. ExOne (NASDAQ: XONE) Honorable Mention: HP (NYSE: HPQ) Voxeljet AG-VJET. Voxeljet is a small 3D printing company with a market capitalization of just $112.34 million. It serves the automotive, aerospace, film and entertainment, art and architecture, engineering, and consumer product industries. Voxeljet stock is a Zacks Rank #3 (Hold).