MBA, Sloan Fellow, MIT Sloan School of Management. Formerly: 15-year career as an entrepreneur; General Partner, North Bridge (a VC fund with $3 billion under management). Founder of six technology companies, including A123 Systems, Boston's largest IPO in the past decade. With North Bridge, was an early stage investor and Member of the Board, Dyn (acquired by Oracle for $600 million), Onshape, MarkForged, Salsify, Lytro and Gridco; led the North Bridge software and 3D investing practices. North Bridge was the original Series A investor in several of the companies that have changed the 3D and CAD/CAM landscape including SolidWorks (acq. by Dassault Systemes), ProtoLabs (NASDAQ: PRLB), SpaceClaim (acq. by Ansys) and Revit (acq. by Autodesk). Currently, Founder and Chief Executive Officer, Desktop Metal, a company reinventing the way design and manufacturing teams 3D print with metal. Its 3D printing systems enable for the first time the mass production of metal parts through 3D printing at speeds 100-times faster than its closest competitors and part metal costs lower than casting (a 95% cost reduction vs laser powder-based fusion 3D printing). Former Member of the Board, Electric Drive Transportation Association. Avid pilot.