Here is a great article published on Forbes.com and written by Sarah Goehrke about funding in additive manufacturing.
3-D printing, once thought to be a consumer-targeted solution, is more often seen today in industrial environments, speeding prototyping processes and increasingly producing end-use parts. Demanding industries like automotive, aerospace, medical and manufacturing are installing 3-D printers -- both desktop and industrial, printing in both plastics and metals -- and putting them to use in operations.[...] keep reading on Forbes.com