Reaction Systems, Inc.

Reaction Systems, Inc., doing business as Reaction Systems LLC, is a Golden, Colorado-based small business specializing in advanced aerospace and space technology research and development, operating as a prime contractor (100% of recent awards) exclusively under total small business set-asides. The company is a for-profit Subchapter S corporation with no subcontracting footprint, competing entirely on its own behalf across SBIR, STTR, and direct R&D contracts with defense and civilian space agencies.

Reaction Systems' capability portfolio centers on regenerable carbon adsorbent sorbents for CO2 and water sequestration in long-duration portable life support systems (PLSS), advanced endothermic fuel systems for thermal management in hypersonic vehicles, pressure-swing adsorption systems for environmental control without capacity limitations, and Sabatier catalyst formulations for in-situ resource utilization (ISRU) on Mars missions. Representative work includes a $1.844 million cost-plus-fixed-fee contract with Naval Strategic Systems Programs (awarded September 2025, completion September 2027) for advanced propulsion and thermal management R&D; a $1.25 million firm fixed-price SBIR Phase II award from the Air Force Research Laboratory (February 2023, completion February 2026) for the endothermic fuel system targeting hypersonic vehicle thermal control; an $849,914 firm fixed-price Phase II SBIR from NASA's Shared Services Center (August 2025, completion August 2027) for water and CO2 sequestration in PLSS; and a $224,904 Phase I SBIR from NASA (September 2026, completion March 2027) for advanced sorbent regeneration supporting Mars EVA applications.

Customer concentration skews heavily toward defense and space R&D. The top five customer agencies account for 78% of combined potential value, led by the Air Force Research Laboratory (11 awards, $6.6 million), NASA's Shared Services Center (10 awards, $3.8 million), and the Army's Research Development and Engineering Command (5 awards, $2.6 million). The Navy's Naval Air Warfare Center, Office of Naval Research, and Department of Energy round out the active set. SBIR and STTR awards dominate the portfolio — 23 recent awards fall under physical and engineering sciences R&D (NAICS) with space R&D services and defense R&D services as the primary PSC categories. Activity has remained steady at low volume (one to four awards annually over the past five years), with only four awards (combined potential value $3.1 million) reaching ultimate completion in the next twenty-four months, creating minimal near-term recompete exposure. Combined potential value across all forty-five awards totals $22.3 million, fully obligated, with no parent contract vehicles, no IDIQs or GWACs, and no teaming relationships documented.