Founded by Gary Burrell and Min Kao in 1989, Garmin develops consumer, aviation, and marine GPS technologies. Burrell and Kao founded the company originally as ProNav, whose first product was a GPS unit. The United States Army was the company's first customer in 1991. Today, ... Read MoreGarmin offers various types of GPS units, including marine, handheld, and automotive GPS. Garmin also makes personal-training devices for people interested in running, cycling, or other sports that involve distance. Garmin's GPS devices can display your current location on a digital map that shows all country borders and major cities. Garmin specializes in various maps, including road maps, topographic maps, and nautical maps. Navteq, a company that compiles geographic data for electronic navigable maps, provides all of Garmin's maps. Whether you're training for a marathon, taking a road trip, going on a hike, or planning any other adventure outdoors, Garmin's GPS systems can help you find your way.