Exo-Atmospheric Technologies LLC

Exo-Atmospheric Technologies LLC, a woman-owned small business based in Waukesha, Wisconsin, develops advanced propulsion components, hypersonic defense technologies, and aerospace research capabilities as a prime contractor exclusively under total small business set-aside SBIR and STTR contracts with defense agencies. The company is a for-profit limited liability corporation structured as a woman-owned business and conducts its work predominantly as a prime (100% of recent awards), with no subcontractor footprint in the source data.

Exo-Atmospheric's customer concentration is heavily weighted to the Department of Defense, with the Missile Defense Agency accounting for 16 awards and $14 million (64% of combined potential value) across the active portfolio. Secondary customers include the Department of the Navy's Office of Naval Research ($2.3 million across 2 awards), the Air Force Research Laboratory ($2.1 million across 6 awards), Naval Sea Systems Command ($1.6 million across 3 awards), and Naval Strategic Systems Programs ($1.2 million). These five agencies cover 98% of combined potential value. Recent representative work spans advanced propulsion research: a $1.987 million Phase II SBIR contract (awarded March 2026) for additively-manufactured insulated propulsion components, a $1.935 million Phase II SBIR contract for Non-Eroding Sonic Throat (NEST) technology, a $1.980 million Phase II SBIR contract for an Affordable Divert and Attitude Control System Backpack, and a $1.195 million Phase II SBIR contract with Naval Strategic Systems Programs for propulsion-system innovations. Earlier work includes Phase I efforts on pintle actuators for hypersonic defense ($149.7 thousand), monopropellant management devices ($750 thousand Phase II with Air Force Research Laboratory), and additively-manufactured throat inserts ($148.9 thousand Phase I).

Activity has remained steady at three to five awards per year over the past five years, with 30 total prime awards generating $21.7 million in combined potential value. Eight awards (combined potential value $13.6 million) reach ultimate completion within the next twenty-four months and face recompete exposure. All work falls under NAICS 541712 (Research and Development in the Physical, Engineering, and Life Sciences except Nanotechnology and Biotechnology), with PSC distribution spanning National Defense R&D Services across applied research, experimental development, and basic research missions. Place of performance centers on the company's Waukesha facility, with secondary performance locations including Huntsville, Alabama; Edwards Air Force Base, California; and Menomonee Falls, Wisconsin. Cost-plus-fixed-fee pricing structures characterize most Phase II awards, with firm fixed-price used on Phase I efforts. Exo-Atmospheric's capability portfolio centers on propulsion innovation, hypersonic-environment instrumentation, additive manufacturing for propulsion components, and specialized propellant management systems supporting missile defense and naval strategic modernization initiatives.