York Space Systems is a vertically integrated space and defense contractor that designs, manufactures, and operates spacecraft platforms and mission-critical ground systems for U.S. Department of Defense, Intelligence Community, NASA, and commercial customers. The company offers three modular satellite product lines (S-CLASS, LX-CLASS, and M-CLASS) that share standardized hardware and software components, complemented by proprietary flight software, autonomous command and control systems, and cloud-based ground station operations across a global antenna network. York generates revenue from spacecraft hardware sales and recurring services including software maintenance, antenna downlink operations, and managed mission operations, with long-term visibility driven by typical satellite replacement cycles of five to six years.