Hamamatsu Corporation - Bridgewater, NJImporter and distributor of photonics components and subsystems for use in instrumentation. Products include photomultiplier tubes, solid-state photodetectors, IR detectors, image sensors, scientific cameras, light sources, and x-ray solutions.
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.
Berkeley Nucleonics Corporation - San Rafael, CAInstrumentation manufacturer of precision test and measurement equipment including pulse and delay generators, arbitrary waveform generators, HV pulse generators, LD drivers, and custom scintillation detectors. Capabilities in photonics, timing, gating, synching, triggering, mass spectrometry, Pockels cells, Q switching, lidar, research, medical research and testing.