Charles Trimble, R. Calvin Burns, and M. Kent Wories founded Trimble Navigation in 1978 in a Sunnyvale, California location that Trimble would later describe as an office above a movie theater. The company's first commercial product was a LORAN-C receiver, a long-range radio navigation system used by ships and aircraft before GPS became available. LORAN-C was profitable enough to fund operations while the US government's NAVSTAR GPS satellite constellation was being deployed. The 1984 commercial GPS receiver was the first of its kind sold to civilian users. Trimble had been following GPS development closely, had built relationships with government programs that provided technical access to the system and was positioned to commercialize it faster than competitors who were either larger but slower or smaller and undercapitalized. The 1990 IPO provided capital for international expansion precisely as the Gulf War created demand for GPS positioning in military applications, temporary but meaningful revenue that validated the technology to a broader commercial audience. The acquisition of Spectra Precision in 2000 added optical surveying instruments to the GPS foundation. Tekla in 2011 brought structural engineering design software into the portfolio, establishing Trimble's position in the building information modeling space that would become central to the construction industry's digital transformation. SketchUp in 2012 added 3D design software with a large user community. Viewpoint in 2018 contributed construction management software used by large general contractors. By 2024, the agriculture business, which had grown through GPS-guided precision farming equipment, had become large enough that AGCO, a dedicated agricultural equipment manufacturer, was a better long-term owner. The PTx Trimble joint venture formalized that logic, with AGCO owning 85% and Trimble retaining 15% of a business that benefits from AGCO's distribution network while freeing Trimble's management to focus on construction and geospatial applications.