Millennium Space Systems

Millennium Space Systems, a Boeing Company, is a small satellite prime contractor based in El Segundo, California. Founded in 2001 and acquired by Boeing in 2018, the company specializes in the rapid development and deployment of high-performance satellite constellation solutions for national security missions. With a strong emphasis on agility and vertical integration, Millennium produces 80% of its components in-house, allowing for efficient and cost-effective operations. The company offers end-to-end small satellite development, including design, manufacturing, and mission operations. It delivers scalable satellite constellations tailored for missile warning and defense, and provides in-orbit support for deployed satellites. Notable projects include the FOO Fighter Program, which features a prototype constellation designed to enhance missile defense capabilities. Millennium collaborates with industry leaders to advance defense technologies and meet urgent mission requirements, primarily serving U.S. national security agencies.