United States Space & Defence Company York Space Systems NYSE IPO to Raise $544 Million at $4.2 Billion Valuation with Expected IPO Listing on 29th January 2026, Founded in 2012 by Dirk Wallinger, Investors Include AE Industrial Partners, IPO was Filed in 2025 under Name of Yellowstone Midco Holdings II Which Will Convert into York Space Systems at IPO
26th January | Hong Kong
United States space & defence company York Space Systems New York Stock Exchange (NYSE) IPO is raising $544 million at $4.2 billion valuation, with expected IPO listing on 29th January 2026. York Space Systems was founded in 2012 by Dirk Wallinger. York Space Systems investors include AE Industrial Partners. York Space Systems IPO was filed in 2025 under the name of Yellowstone Midco Holdings II, which will convert into York Space Systems at IPO. York Space Systems – York Space Systems is a leading, U.S.-based, space and defense 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 the number one provider to the U.S. Department of Defense’s (“DoD”) Proliferated Warfighter Space Architecture (“PWSA”) by number of spacecraft operating in-orbit, by number of contracts, and by variety of contract types as of September 2025. York is a partner of choice for our customers, with differentiated performance versus traditional primes based on price, speed to deployment, and sophistication of capabilities. We produce our satellites at approximately half the cost of our competitors and have been the first to deliver and launch satellites for the PWSA. York is the first and only company to demonstrate Link-16(2) connectivity from space, highlighting our unique and innovative capabilities. 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 process. We believe we are positioned to capture an outsized share of growth in our core markets. York provides customers a vertically integrated, full technology stack of solutions including design, production, integration, and operation of spacecraft with turnkey offerings to manage spacecraft and constellations throughout their entire mission lifecycle. York has significant space heritage, having flown 74 missions, created 17 products with flight heritage, and logged over four million on-orbit hours. York’s position as a prime enables us to monetize the entire space vertical from launch to mission operations, from spacecraft to payloads, and from edge computing to data transfer. York was founded in 2012 by our CEO, Dirk Wallinger, to create an innovative space technology mission prime, with a goal of meeting the evolving national security threats from space by providing mission-critical spacecraft at scale, faster, and at lower cost. We believe that York’s proven production and delivery capabilities place it among a very limited number of companies who have the capability to deliver the required solutions for the Golden Dome based on its current timeline. We provide our customers with the ability to quickly and effectively field responsive space-based technologies. Our proprietary hardware, software and mission operations solutions are designed to address the United States’ national security priorities: missile defense (crucial to the Golden Dome), counter-space capabilities, and space domain awareness. Increasing geopolitical tensions are driving near-peer adversaries to invest heavily in military space capabilities to gain advantage in orbit—the next domain in global conflict. In today’s threat environment, rapidly deployable satellites are critical to providing denied benefit in space, maintaining space superiority and countering these emerging threats.
“ United States Space & Defence Company York Space Systems NYSE IPO to Raise $544 Million at $4.2 Billion Valuation with Expected IPO Listing on 29th January 2026, Founded in 2012 by Dirk Wallinger, Investors Include AE Industrial Partners, IPO was Filed in 2025 under Name of Yellowstone Midco Holdings II Which Will Convert into York Space Systems at IPO “
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United States Space & Defence Company York Space Systems NYSE IPO to Raise $544 Million at $4.2 Billion Valuation with Expected IPO Listing on 29th January 2026, Founded in 2012 by Dirk Wallinger, Investors Include AE Industrial Partners, IPO was Filed in 2025 under Name of Yellowstone Midco Holdings II Which Will Convert into York Space Systems at IPO
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