Charles Trimble was not a typical entrepreneur. He was an electrical engineer from Caltech who had spent years at Hewlett-Packard leading integrated circuit development, and he believed that the U.S. government's NAVSTAR GPS program — then exclusively military — would eventually be opened to civilian use. In November 1978, he and two former HP colleagues, R. Calvin Burns and M. Kent Wories, incorporated Trimble Navigation in Los Altos, California, with approximately $300,000 in initial capital from Trimble's personal savings and loans from friends. Their first office was above a movie theater, where the floorboards rattled during screenings. The company's first product was not a GPS receiver — the GPS constellation was still years from completion — but a LORAN-C navigation receiver for the maritime market. Trimble acquired the rights to HP's discontinued LORAN-C technology for $50,000 and began selling approximately $1 million of equipment annually by 1982. The breakthrough came in 1984, when Trimble developed the world's first commercial GPS receiver, the 4000S, for surveying and mapping applications. This was a radical bet: GPS was still a military system, civilian access was limited, and the receivers were expensive and bulky. But Trimble believed that the transformative potential of satellite positioning for civilian applications — surveying, construction, agriculture, mapping — was worth the risk. In 1990, Trimble held its initial public offering, becoming one of the first GPS technology companies to go public. That same year, the company began selling GPS-enabled personal position finders to the U.S. military. When Iraq invaded Kuwait in 1990, U.S. military demand for these devices surged, and Trimble's sales revenues grew from approximately $5 million per month to $19 million per month. By 1991, the company had about 750 employees and had been named Inc. Magazine's Entrepreneur of the Year. In the early 1990s, Trimble began developing real-time kinematic (RTK) positioning technology, which enabled centimeter-level accuracy for surveying. The first commercial RTK product, the Site Surveyor System, was released in 1993, followed by the first on-the-fly RTK receiver in 1994. These innovations established Trimble as the dominant supplier of high-precision GPS equipment worldwide. In 1995, Trimble began working with Caterpillar to develop GNSS receivers for heavy construction vehicles — a partnership that would lead to the Caterpillar Trimble Control Technologies (CTCT) joint venture in 2002. Charles Trimble served as CEO until 1998, when he stepped down and was succeeded by Steve Berglund, previously president of Spectra Precision (which Trimble acquired in 2000). Under Berglund's 20-year leadership, Trimble transformed from a GPS hardware company into a diversified industrial technology leader through aggressive acquisition and market expansion. Between 1999 and 2007, annual revenues grew from $270 million to approximately $1 billion. Key acquisitions included Tekla (BIM software, 2011), SketchUp from Google (3D modeling, 2012), TMW Systems (transportation, 2012), Viewpoint (construction software, 2018 for $1.2 billion), and Transporeon (transportation management, 2022 for $2.0 billion). In 2016, the company changed its name from Trimble Navigation to Trimble Inc., reflecting its diversification beyond navigation into software, services, and integrated solutions. In October 2019, Trimble announced that Robert G. Painter would become President and CEO, effective January 4, 2020. Painter, who had served as CFO and COO, brought a financial and operational discipline that would shape the 'Connect and Scale' strategy. The COVID-19 pandemic in 2020–2021 disrupted construction and transportation markets but also accelerated digital transformation, driving demand for Trimble's cloud-based collaboration tools. In 2023, AGCO announced it would acquire an 85% stake in Trimble's agriculture business, creating the PTx Trimble joint venture. In 2024, Trimble sold its transportation telematics business to Platform Science in exchange for a 32.5% equity stake. These divestitures simplified the portfolio and improved margins but also reduced revenue scale. In 2025, Trimble was added to the S&P 500 Index, recognizing its transformation into a leading industrial technology company. The company Charles Trimble built from $300,000 and a belief in civilian GPS has become a $17 billion platform connecting the digital and physical worlds — but the engineering-driven, industry-deep philosophy that founded it remains the core of its identity.