Trimble Navigation Limited

Ref Tek, founded in 1975, initially focused on producing niche products for land, marine, and oil exploration markets. Over the years, the company expanded its offerings to include digital telemetry systems for the seismological community. With over 3,500 instruments in use for various applications, Ref Tek has established itself as a leading provider in the industry. Based in Dallas, Texas, the company serves clients such as Brown University, Boston College, California Institute of Technology, and Carnegie Institution.