If You Invested in York Space Systems (Yellowstone) (YSS)

York Space Systems Inc. (NYSE: YSS) provides space and defense mission solutions for national security, government, and commercial customers. The company operates as a U.S.-based defense and commercial prime focused on small satellites, spacecraft systems, ground operations, downlink capabilities, and software-enabled services across the space mission lifecycle.

York develops proprietary hardware and software intended to support customer requirements from spacecraft design and production through launch, operations, and mission services. Its offering spans several complementary categories: Components, Subsystems, Spacecraft Platforms, Ground Operation, Global Downlink, and Software-Enabled Services. These capabilities support missions for U.S. federal government-controlled agencies and domestic commercial customers, including national security space architectures and commercial space programs.

The company derives a majority of its revenue from long-term firm-fixed-price production contracts. These contracts are tied to the design of small satellites, launch services, and ground services. As a mission prime, York combines spacecraft manufacturing, mission operations, supply-chain coordination, and software capabilities to deliver integrated space systems rather than a single component or service line.

York’s operating model includes high-rate manufacturing capacity, a domestic supply chain, and mission operations centers that support deployed spacecraft and operational constellations. The company’s public updates describe work on national defense and warfighter space capabilities, proliferated low Earth orbit architectures, and communications demonstrations involving government and commercial services.

In 2026, York completed its acquisition of Orbion Space Technology, a manufacturer of flight-proven electric specialty aerospace systems. The acquisition added spacecraft subsystem capability to York’s integrated space ecosystem and aligned with the company’s focus on domestic production capacity and constellation-scale mission requirements.

York Space Systems is a Delaware corporation with common stock listed on the New York Stock Exchange under the symbol YSS. The company is based in Colorado, with regulatory filings identifying its principal executive office in Greenwood Village.