Markforged, Massachusetts, a leading manufacturer of industrial 3D printers, announced that it has closed an $82 million Series D round of funding led by Summit Partners with participation from existing strategic and financial partners, including Matrix Partners; M12, Microsoft's Venture Fund; Next47; and Porsche SE. Markforged will use the additional capital to help accelerate its product roadmap, including the introduction of mass production printers and new materials. The capital will also be used to enhance the company's global expansion plans, and strengthen its foothold among global manufacturers.