York Space Systems Inc. (YSS) — Research Summary as of August 15, 2026

Company Overview

York Space Systems Inc. is a Denver-based national security space company founded in 2012 by CEO Dirk Wallinger. It designs, manufactures, integrates, tests, and operates satellites primarily for the U.S. government—most notably for the Space Development Agency's (SDA) Proliferated Warfighter Space Architecture (PWSA) constellation [10]. York went public on the New York Stock Exchange on January 29, 2026, under the ticker YSS, raising approximately $582.6 million in its IPO [10][11]. At IPO, the company targeted a valuation of up to $4.25 billion [16].

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Key Recent Catalysts (Approximately May–August 2026)