Urban Sky

Urban Sky is a company that makes stratospheric balloons. It calls its balloon platform the Microballoon. The company is based at 4800 Race Street in Denver, Colorado. The site says the company was founded in 2019 and designs and builds its technology in Denver.

The balloons fly between 40,000 and 75,000 feet. The site says they can launch in under 5 minutes and stay aloft for days. It describes a multi-axis pointing platform with RGB, VNIR, and LWIR sensor options. It also describes real-time data downlink from 75,000 feet. The company offers mission planning, flight control, and data processing software.

The site groups its markets into three areas. Defense and Intelligence covers tactical surveillance, communications relay, and persistent coverage. Commercial and Data covers imagery for infrastructure, agriculture, and mapping. Science and Weather covers atmospheric research and climate monitoring.

The site compares the balloon with satellites, aircraft, and drones. It rates the balloon as cheaper than satellites and aircraft, faster to deploy than satellites, and higher than aircraft. The company has more than 20 patents, according to the site.

The timeline on the site starts in 2020 with routine stratospheric operations and the first reusable balloon flights. It lists about 4.1 million dollars in seed funding in 2021, a 9.75 million dollar Series A in 2023, and a 30 million dollar Series B announced in 2025. The site says total funding is more than 45 million dollars. It also says the company has more than 50 team members and has made more than 500 stratospheric flights.

News items on the site include a November 2024 report on a 99 million dollar Air Force award. The site also lists coverage by TechCrunch, CNN, Popular Science, MIT Technology Review, and SpaceNews.

Sales contact is through the contact form. The phone number is +1 844 286 6797. The site also has pages for tech docs, patents, and data products, plus LinkedIn and Instagram accounts.