Spire Global

Spire Global operates a large low Earth orbit nanosatellite constellation, consisting of over 100 active LEMUR satellites designed to collect atmospheric, aviation, and maritime data. The company's core technology utilizes radio occultation to measure atmospheric properties for weather forecasting and space-based automatic dependent surveillance-broadcast receivers to track global aircraft in regions lacking terrestrial coverage. Spire processes these datasets into analytics products delivered via subscription-based APIs. The company manufactures its satellites at a primary facility in Glasgow, Scotland, and maintains a global network of over 30 proprietary ground stations for low-latency data delivery.

Beyond data products, Spire offers Pioneer, a space-as-a-service platform that enables third parties to deploy custom payloads and sensors on its satellite bus and leverage its existing ground infrastructure. The company serves government agencies including NASA, NOAA, and the U.S. Space Force, as well as commercial aviation and logistics sectors. In April 2025, Spire divested its commercial maritime tracking business to Kpler to focus on its high-growth government contracts and space services divisions. Spire is publicly traded on the NYSE under ticker SPIR and is headquartered in Vienna, Virginia, with international offices in Luxembourg, Singapore, and Munich.