Heidenhain Corporation - Schaumburg, ILInternational manufacturer of precision measurement and control equipment. This technology is utilized within precision motion control and machining systems worldwide. Products include encoders (linear, angle, rotary), length gauges, numerical controls, and touch probes for demanding positioning tasks.
4D Technology Corporation - Tucson, AZDesigns and manufactures dynamic laser interferometers and optical profilers, and surface defect gauges. Applications include precision machined surfaces, optics, astronomy, aerospace, space-based telescopes, flexible electronics, automotive, and in-line production measurement.