Enventive Engineering Inc is a self-financed, employee-owned software company founded in 2002 that develops tolerance analysis and variational analysis software for mechanical design. Its technology, a variational constraint server originating from MIT research, powers three products: Enventive Concept (2D tolerance analysis for design optimization), Enventive 3D&T (3D tolerance analysis for CAD verification, in beta) and Enventive 360 (a web-based critical parameter management platform). Customers span automotive, aeronautics, appliances, industrial equipment, energy, medical technology, defense and power tools, with offices in the USA, Germany, Spain, Italy, India and South Korea.