Reaction Systems, Inc.
Golden, CO Doing business as Reaction Systems LLC
- UEI
- RSALD9ULYWG3
- CAGE
- 4AGA3
- Primary NAICS
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- SAM.gov registration
- Active through
Company facts
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- NAICS codes registered in SAM.gov
- SAM.gov registration date
- Physical address
- 17301 W Colfax Ave #160, Golden, CO 80401, USA
- Website
- rxnsys.com
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Recent federal awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Sbir phase i advanced sorbent regeneration for mars EVA | Shared Services Center | $224,904 | |
| Sabatier catalyst development | Shared Services Center | $218,410 | |
| This effort will develop a regenerable CO2 control system that accomplishes a dual bed, pressure swing adsorption system… | ACC Aberdeen Proving Ground | $209,500 | |
| 873AUTHORITY | Naval Sea Systems Command | $656,328 | |
| Phase II sbir 80NSSC25C0028 innovative method for water and CO2 sequestration and reclamation in long duration plss | Shared Services Center | $849,914 |
About 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, delivering thermal management systems, environmental control and life support technologies, propulsion innovations, and carbon sequestration solutions exclusively as a prime contractor (100% of recent awards) under total small business set-asides. The company is a for-profit Subchapter S corporation competing across SBIR, STTR, and defense R&D contract vehicles with no subcontract footprint.
Reaction Systems' capability portfolio centers on three concrete technical domains: regenerable carbon adsorbent (RCA) sorbents for CO2 and water sequestration in long-duration space missions; advanced endothermic fuel systems for thermal management in hypersonic vehicles; and pressure-swing adsorption systems for environmental control and life support. Representative contracts include a $1.844 million cost-plus-fixed-fee definitive contract from the Office of Naval Research (September 2025) for advanced propulsion and thermal management R&D; a $1.25 million SBIR Phase II purchase order from the Air Force Research Laboratory (February 2023) for endothermic fuel system development in hypersonic vehicles; an $849,914 NASA SBIR Phase II definitive contract (August 2025) for water and CO2 sequestration and reclamation in portable life support systems; and a $218,410 firm fixed-price purchase order from NASA's Shared Services Center (July 2026) for Sabatier catalyst development and poisoning-resistance testing, performed in Huntsville, Alabama. The company has also secured a $1.9 million Naval Air Warfare Center SBIR Phase II contract (valued at completion September 2026) and a $209,500 Army Research Development and Engineering Command SBIR Phase I award (March 2026) for regenerable CO2 control systems.
Customer concentration is split across defense and civilian space agencies. The Air Force Research Laboratory leads by award count (11 awards, $6.6 million combined potential value), followed by NASA Shared Services Center (9 awards, $3.6 million), the Office of Naval Research (4 awards, $3.3 million), and the Army Research Development and Engineering Command (5 awards, $2.6 million). These five agencies account for 75% of awards covering 84% of combined potential value. Activity has been episodic — one award in 2022, four in 2023, two in 2024, and three in 2025 — with a single award in the first week of 2026. Four awards (combined potential value $4.8 million) reach completion within the next twenty-four months and face recompete exposure. The vendor's $22.1 million combined portfolio is concentrated in SBIR and STTR research phases (Phase I, Phase II, and Phase III across multiple topic areas) rather than production or sustainment work, and all 44 awards are categorized under basic or applied research in physical, engineering, or life sciences rather than manufacturing or operational delivery.
Quick answers
What is Reaction Systems, Inc.'s UEI?
Reaction Systems, Inc.'s Unique Entity ID (UEI) in SAM.gov is RSALD9ULYWG3.
What is Reaction Systems, Inc.'s CAGE code?
Reaction Systems, Inc.'s CAGE code is 4AGA3.
What is Reaction Systems, Inc.'s primary NAICS code?
Reaction Systems, Inc.'s primary NAICS code is 541715 (Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)).
Where is Reaction Systems, Inc. located?
Reaction Systems, Inc.'s physical address in SAM.gov is 17301 W Colfax Ave #160, Golden, CO 80401, USA.
Is Reaction Systems, Inc. registered in SAM.gov?
Yes. Reaction Systems, Inc.'s SAM.gov registration is active through July 30, 2027.
What is Reaction Systems, Inc.'s most recent federal award?
Reaction Systems, Inc.'s most recent federal contract award is Sbir phase i advanced sorbent regeneration for mars EVA (80NSSC26C0316), from Shared Services Center, on September 30, 2026.
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See Reaction Systems, Inc.'s full federal record
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