York Space Systems Completes Successful Dragoon Mission Test Objectives

York Achieves Tactical Communications Demonstration, Further Expanding Its Mission Set Portfolio

York Space Systems (York) (NYSE:YSS), a leading, US-based national defense and commercial prime providing a comprehensive suite of mission-enabling solutions, today announced the successful completion of initial Dragoon mission objectives. The mission proved that York’s spacecraft can both send and receive tactical data via UHF, which the U.S. military relies on for secure, real-time connectivity with assets in the field. Completing this two-way link from low Earth orbit (LEO) confirms York’s ability to deliver operationally relevant tactical communications at speed and scale, on a platform built for the demands of modern defense.

York satisfied initial mission exit criteria through five successful demonstrations over a three-month period, including three downlink demonstrations, which validated the spacecraft’s ability to transmit data down to a stationary government ground terminal, and two uplink demonstrations, which confirmed the ability to push most data from the ground back up to the spacecraft.

"Dragoon wasn’t just a technical exercise, it was proof that York can deliver space-based tactical communications that work," said Melanie Preisser, GM and EVP at York. "Two-way connectivity between a satellite and ground forces is operationally essential, and we’ve now demonstrated it on orbit. That opens doors to mission sets that matter deeply to national defense."

The ability to establish bi-directional tactical communications from a proliferated LEO platform is a meaningful addition to York's mission set portfolio. As the Department of War (DoW) accelerates its push toward resilient, distributed space architectures, the demand for proven suppliers who can deliver this kind of capability at speed and on orbit has never been greater. Dragoon positions York squarely at the center of that demand. Dragoon will continue with demonstrations for another quarter to test additional capabilities.

"This mission is emblematic of what York was built to do: take on hard missions, execute with precision, and deliver capabilities that directly strengthen U.S. defense posture," added Preisser. "This success expands our proven mission set portfolio at exactly the right moment, as DoW looks to a capable, responsive industrial base to meet the demand for tactical space capabilities. York is ready to meet that demand."

The successful completion of Dragoon expands York’s portfolio of eight unique mission sets aligned with national defense priorities and positions the company to capitalize on the approximately $20 billion in classified mission sets outlined in the DoW’s FY2027 mandatory budget. Notably, Dragoon leveraged an inventory spacecraft platform and delivered a complete mission to orbit in seven months, demonstrating that York can respond to emerging defense needs without sacrificing significant mission performance. To meet that demand, York has invested in an inventory of 20 spacecraft platforms, enabling delivery on timescales up to 75% shorter than current mission timelines. As the U.S. government continues to prioritize a broad and robust supplier base, York’s demonstrated UHF capability underscores its commitment to delivering missions that work, and to the enduring need for space-based tactical support for the warfighter.

About York Space Systems

York Space Systems (NYSE:YSS) is a leading, U.S.-based national defense and commercial prime providing a comprehensive suite of mission-critical solutions for national security, government, and commercial customers. York is one of the only space and defense primes with proprietary hardware and software capabilities designed to address customers’ complex mission requirements across the critical elements of the entire space ecosystem throughout the mission lifecycle. York is purpose built to address evolving national security space challenges and to adapt to the ongoing shift in the U.S. government’s mission needs and procurement processes.

Forward-Looking Statements

This press release contains "forward-looking statements" within the meaning of, and we intend such forward-looking statements to be covered by, the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Forward-looking statements are inherently subject to risks and uncertainties, some of which cannot be predicted or quantified. In some cases, you can identify forward-looking statements by terminology such as "anticipate," "believe," "continue," "could," "emerging," "expand," "expect," "feasibility," "intend," "may," "objective," "plan," "potential," "should," "will," "would," or the negative of these terms or other comparable terminology. In particular, statements about the potential for opportunities arising from this successful completion, the DoW’s demand, needs and budget, our ability to execute across programs and deliver on accelerated timelines, our growing participation in next-generation defense space architectures and expanding mission areas, our capabilities of our spacecraft and equipment, continued investment, increasing demand, and our expectations, beliefs, plans and strategies contained in this press release are forward-looking statements.

Factors that could cause actual results to differ materially from those expressed or implied by the forward-looking statements include: disruptions in U.S. government operations and funding and budgetary priorities of the U.S. government; any failure of our spacecraft systems and related software to operate as intended, resulting in warranty claims for product failures, schedule delays or other problems with existing or new products; cost overruns on our contracts, including before final receipt of a contract; significant competition in the global space and satellite market; our revenue, results of operations and reputation may be negatively impacted if our products contain defects or fail to operate in the expected manner; our failure to establish and maintain important relationships with government agencies and prime contractors; the scarcity or unavailability of critical components used to manufacture our products or used in our development programs; the inability to comply with any of our contracts or meet eligibility requirements to obtain certain government contracts; and the other factors set forth in our filings with the Securities and Exchange Commission. You should not place undue reliance on these forward-looking statements, which speak only as of the date stated, or if no date is stated, as of the date of this press release and the related conference call. Actual results may vary from the estimates provided. We undertake no intent or obligation to publicly update or revise any of the estimates and other forward-looking statements made in this press release, whether as a result of new information, future events or otherwise, except as required by law.

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