ANSYS helps designers and engineers around the world visualize their ideas. With the company's software, product developers can see a simulation of their design concept on their desktop computer before a prototype is built. The computerized models are analyzed for their response to combinations of such physical variables as stress, pressure, impact, temperature, and velocity. Ranging from small consulting firms to multinational enterprises, the company's customers come from a broad range of industries and have included Mercury Marine, PETROBRAS, and Medtronic. ANSYS gets two-thirds of its revenues from outside the US, with Japan and Germany among its leading international markets.