York Space Systems acquires Solestial

York Space Systems has entered into an agreement to acquire Solestial, a manufacturer of radiation-hardened, ultrathin solar cells and modules. The deal is part of York's strategy to gain greater control over its supply chain and to enhance its space systems with advanced solar technology, in particular the self-healing silicon solar cells that Solestial produces. Crucially, the financial details of the transaction remain undisclosed, though its completion is anticipated by the second quarter.

Solestial emerged from Arizona State University in 2013, initially focusing on developing novel manufacturing techniques for terrestrial silicon solar cells. The company transitioned in 2022 following a $10 million seed round led by Airbus Ventures to escalate production capabilities and validate its technology for space applications. Solestial's solar technologies are specifically designed to withstand and self-heal in high-radiation environments such as space, offering a strategic advantage given the long lead times and suitability challenges of traditional terrestrial materials.

York's acquisition is driven by several strategic factors. The company aims to bolster its U.S.-based manufacturing footprint while reducing dependency on foreign materials—particularly those controlled by China—for critical subsystems. Dirk Wallinger, York's founder and CEO, emphasized the importance of strengthening the supply chain by investing in American industry, which, according to the company, addresses the lengthy lead times and rapid degradation of current solar technologies under radiation exposure.

The acquisition places York within a niche market looking to secure its supply chain as space ventures increase demand for durable, specialized components. Solestial's robust U.S.-based supply chain, with 95% of sourcing from domestic producers, and its investment in high-volume manufacturing equipment offer York a vertically integrated solution. This deal follows York's $629 million IPO and prior acquisitions, including terminal manufacturer All.Space and propulsion system developer Orbion Science Technology, indicating an aggressive expansion strategy to reinforce its market positioning against competitors like Anduril and X-Bow.

York's next steps will likely involve integrating Solestial's manufacturing capabilities into its operations and exploring further opportunities for scale and technical advancement. The completion of this acquisition will be instrumental to fulfilling York's broader objectives of delivering resilient, space-ready power solutions. Pending regulatory approvals and any additional conditions, the transaction is positioned to finalize in the upcoming months, solidifying York's strategy in the growing space technology sector.