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York Space Systems (NYSE: YSS) announced that it has been selected as the prime contractor for the initial phase of the DeepSky early warning constellation. The contract, valued at $187 million, was awarded by Tomorrow.io to deploy a network of satellites designed to provide global atmospheric and oceanic measurements. The announcement was made on September 10, 2026, according to a press release distributed by York Space Systems.
York Space Systems will deliver dozens of satellites using its flight-proven M-CLASS platform. The company stated that the platform is engineered to accommodate the full instrument suite required by Tomorrow.io. Each spacecraft will carry five distinct instruments, including Gen-2 microwave sounders, GNSS radio occultation sensors, GNSS reflectometry equipment, infrared and visible imaging systems, and space-based precipitation radar. These instruments are intended to provide a full vertical picture of the atmosphere at global refresh rates.
The contract covers the initial phase of a planned proliferated low-Earth orbit constellation. York Space Systems will own end-to-end program delivery for this phase, managing the process from spacecraft manufacture through payload integration. The company described this structure as providing Tomorrow.io with a single accountable partner for the project.
Michael Laczjok, chief technology officer of York Space Systems, stated that DeepSky is one of the most technically ambitious commercial Earth observation programs being built today. He noted that the program fills a measurement gap that has left most of the planet under-observed for decades. York Space Systems emphasized that its M-CLASS platform possesses the necessary size, power, onboard processing, and thermal management capabilities to run active sensors, including precipitation radar, over every part of the globe, day and night.
Shimon Elkabetz, chief executive officer and co-founder of Tomorrow.io, said that deploying a constellation of this scale requires a strong, innovative prime partner capable of moving fast on rapid timelines. He added that York Space Systems brings the capability to deliver best-in-class platforms for very demanding payloads and mission configurations. The company highlighted its production track record as a key factor in the selection.
York Space Systems is a U.S.-based national defense and commercial prime contractor. The company provides mission-enabling solutions for national security, government, and commercial customers. It is one of the few space and defense primes with proprietary hardware and software capabilities designed to address complex mission requirements across the space ecosystem. The company stated that it has invested more than $755 million in production to deliver constellations at the required scale and cadence.
The DeepSky constellation is designed to close long-standing global gaps in atmospheric and oceanic measurements. The spacecraft will operate as a proliferated network of multi-instrument platforms. The selection of York Space Systems highlights the company’s expansion into commercial adjacent markets, leveraging its heritage in national security and commercial programs. The contract was previously disclosed in March, and this announcement confirms the prime contractor role for the initial phase.
York Space Systems trades on the New York Stock Exchange under the ticker symbol YSS. The company’s operations are headquartered in the United States. Investors are monitoring the execution of this contract as a demonstration of the company’s ability to deliver large-scale satellite constellations in the commercial weather-intelligence sector.
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