Started in 1967, United Detector Technology began manufacturing the first commercially available transimpedance amplifiers for planar-diffused and Schottky barrier silicon photosensors. From there, the group went on to pioneer leading-edge technology for photometers, radiometers, fiberoptic power meters, and optical position sensing instruments. By the time the 1980s rolled around, this innovative and highly successful group grew into an autonomous entity known as UDT Instruments (UDTi).

Started in 2002 in Sarasota, Florida, Ultrafast Systems LLC specializes in the design and fabrication of femtosecond and nanosecond time-resolved spectrometers. Their focus is on time-resolved absorption and emission measurements and they offer custom solutions for your time-resolved spectrometry needs, such as upgrades of your existing spectrometry hardware and software and consulting services.