York Space Systems’ T1TL full stack of 21 satellites. Photo: York Space Systems

Space technology company York Space Systems on Monday filed a registration statement for a proposed initial public offering (IPO) that would take the 13-year-old private equity-backed company public.

The pricing of York’s stock and potential value of the IPO were left blank in the S-1 registration statement filed with the Securities and Exchange Commission (SEC). If the IPO goes through, Denver-based York’s shares would trade on the New York Stock Exchange under the ticker symbol “YSS.”

York is a portfolio company of AE Industrial Partners. The SEC filing does not disclose the percentage share of AEI’s current ownership of York or how much of the company it will own if the IPO is successful.

In the S-1, York says it generated $253.5 million in sales in 2024, up 6% from $238.1 million in 2023. The company recorded a $98.1 million net loss in 2024 versus a $29.7 million loss in 2023.

Through the first nine months of 2025, York’s sale are up 59% to $280.9 million versus $176.9 million for the same period in 2024. Net losses of $56 million so far this year are less than the $73.6 million the company recorded in the first nine months of 2024. Operating cash outflow so far in 2025 is $88.2 million.

Backlog at the end of September stood at $642 million, down 25% from $861.7 million at the end of 2024.

York has more than 670 employees, according to the S-1.

“Substantially all” of the company’s sales and backlog come from its work providing satellites for the Space Development Agency’s Proliferated Warfighter Space Architecture, which includes a combination of communications and missile warning satellites, York says. The company has captured 14% of the PWSA contract award value so far, it says.

York says its total addressable market of opportunities by 2028 is $140 billion.

This story was first published by Defense Daily