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York Space Systems completed a $629 million initial public offering in late January 2026.
On January 13, 2026 Orbion Space Technology delivered 33 Aurora propulsion systems to York Space Systems for an undisclosed national security mission.
York Space Systems expects the transition of Orbion’s leadership and staff to be completed by Q3 2026.
York Space Systems expects Orbion’s Houghton site to scale production to hundreds of Aurora units annually to support York’s internal programs and existing commercial propulsion customers.
York Space Systems will maintain Orbion’s headquarters and manufacturing facility in Houghton, Michigan.
York Space Systems positioned itself as a Tier 1 defense prime by securing the supply of high-performance plasma propulsion systems through the acquisition of Orbion.
York Space Systems is a primary contractor for the Space Development Agency’s Tranche 1 Transport Layer.
In September 2025 York Space Systems deployed 21 satellites for the Space Development Agency’s Tranche 1 within hours of launch.
The Aurora Hall-effect thruster (HET) system is integrated into York Space Systems’ S-CLASS and M-CLASS satellite bus architectures.
The acquisition integrates Orbion as a propulsion supplier into York Space Systems’ defense and commercial production line.
The SDA is considering shifting planes of satellites between vendors and potentially moving a second batch of York Space Systems satellites onto an earlier launch slot if Lockheed Martin requires more time for troubleshooting.
EOS-X Space maintains a commercial, operations, and finance office in New York and strategic hubs in Europe and Abu Dhabi.
Melanie Preisser joined York Space Systems in 2019.
York Space Systems became the leading provider to the PWSA in terms of spacecraft in orbit, number of contracts, and range of mission types in 2025.
York Space Systems’ 2025 missions included BARD, a collaboration with NASA and Johns Hopkins APL, the Dragoon mission for SDA, and the experimental national security mission Tyndal.
Stellant operates additional non-space production facilities in Torrance, California; Williamsport, Pennsylvania; and Melville, New York.
York Space Systems launched four missions in 2025 including 21 data transport satellites for the Space Development Agency’s Proliferated Warfighter Space Architecture Tranche 1 Transport Layer.
York Space Systems prepared for an initial public offering in early 2026 that raised nearly $630 million.
Melanie Preisser is Executive Vice President of York Space Systems.
AlixPartners is headquartered in New York and has offices in more than 20 cities around the world.