Navteq is a Chicago-based provider of Geographic Information Systems data and is a dominant company in providing the base electronic navigable maps. The company is a wholly owned subsidiary of Nokia but operates independently. Navteq's underlying map database is based on first-hand observation of geographic features rather than relying on official government maps. It provides data used in a wide range of applications, including automotive navigation systems for many car makers, accounting for around 85% of market share. Portable GPS devices made by Garmin, Lowrance, NDrive and web-based... applications, such as Yahoo! Maps, Bing Maps, and MapQuest also use its maps. Microsoft's Flight Simulator X uses Navteq data for automatic terrain generation. Nokia Maps also use its maps in smartphones. Nokia Maps provides offline maps, eliminating the need for a constant internet data feed.
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