NextNav 

NextNav Inc. provides next generation positioning, navigation, and timing (PNT) solutions in the United States. It offers Pinnacle, a dedicated vertical positioning network to cover entire metropolitan areas including devices equipped with a barometric pressure sensor with the highest quality wide-area altitude service. The company also provides TerraPoiNT, an 3D PNT system, provides positioning, navigation and timing services provided by GPS through a land-based GPS satellite constellation. It serves Wi-Fi, telecom, public safety, gaming and location apps, and critical infrastructure applications. NextNav Inc. was founded in 2007 and is headquartered in McLean, Virginia.