Fifth Gait Technologies, Inc.

Fifth Gait Technologies, Inc., a woman-owned, Hispanic American-owned small business based in Santa Barbara, California, delivers advanced space weather modeling, radiation detection, and nuclear effects analysis software to the Department of Defense and civilian space agencies as a prime contractor (60% of recent awards) and as a specialized subcontractor to defense primes on radiation hardening and nuclear survivability work. The company competes without set-aside designations on its largest vehicle and under total small-business set-asides on its SBIR portfolio.

Fifth Gait's customer base concentrates heavily in defense. The Missile Defense Agency accounts for 25 awards and $50 million in combined potential value — 74% of total pipeline — followed by the Defense Threat Reduction Agency (6 awards, $11.9 million), NASA's Shared Services Center (5 awards, $2.3 million), the Air Force Materiel Command Research Laboratory (3 awards, $2.1 million), and the Naval Air Warfare Center (2 awards, $898 thousand). These five agencies account for 85% of awards and 99% of potential value. The concentration is acute: MDA's $50 million represents 73% of the combined $68 million potential value across all work.

Fifth Gait's primary vehicle is the Scalable Homeland Innovative Enterprise Layered Defense (SHIELD) indefinite-delivery indefinite-quantity contract issued by MDA on December 29, 2025, carrying a $151 billion ceiling and running through December 28, 2035. The company holds this position under full-and-open competition with no set-aside designation and has already received one delivery order (SHIELD Initial Order, $500, firm fixed price) scheduled for completion in Huntsville, Alabama by December 28, 2035. Work under SHIELD encompasses research and development, prototyping, systems engineering, weapon design, production, test and evaluation, and modernization for ballistic, hypersonic, and cruise missile defense across all flight phases, including classified programs across multiple security domains. Fifth Gait also operates under a Defense Threat Reduction Agency cost-plus-fixed-fee definitive contract (awarded September 28, 2021, completion September 29, 2026, $9.05 million) for development and enhancement of advanced X-ray transport and radiation response analysis toolkit capabilities, and manages a portfolio of SBIR Phase I and Phase II awards from NASA and the Air Force focused on space weather modeling, geomagnetic cutoff models, and space radiation environment analysis.

The company's core capability portfolio centers on space weather modeling and radiation analysis — research and development services spanning radiation detection software, nuclear effects simulation, electromagnetic pulse (EMP) and transient radiation effects in electronics (TREE) analysis, and radiation hardening technology development. Representative prime work includes a $1.25 million SBIR Phase II contract from the Air Force Research Laboratory for cis-lunar and extra-geosynchronous space weather model development (completion February 28, 2026), a $1.1 million Phase II SBIR from NASA's Shared Services Center for enhancement of geomagnetic cutoff models inside SIRE2 (completion March 31, 2026), and a $750 thousand Phase II SBIR from NASA for advanced climatology innovations in space radiation environments. Fifth Gait operates a Nuclear Infrared Clutter Simulator (NICS) chamber that supports radiation hardening testing and has provided neutron radiation test services and survivability engineering labor as a subcontractor to Lockheed Martin on multiple NGI AUR development pre-milestone efforts (awards issued February 2024 through August 2024), to Applied Research Associates on nuclear effects and weapons environment standards development, to Northrop Grumman on nuclear effects research, and to Physical Sciences Inc. on a Phase II SBIR for a radiation-hardened infrared scene projector.

Activity has grown moderately — three awards in 2021 to nine in 2024 — with four awards in 2025 year-to-date. The recompete cliff is minimal: only one award (the $9.05 million DTRA contract) reaches ultimate completion within the next twenty-four months, limiting near-term recompete exposure. The Service Contract Inventory dataset captures six records (five as prime, one as named sub) across FY2022–FY2024, but reports zero invoiced revenue on prime records and zero FTEs allocated — indicating that Fifth Gait's reportable federal service contracts fall below the $150,000 SCI threshold or are structured as research and development contracts rather than labor-hour service contracts. The company's federal footprint is dominated by SBIR awards, definitive R&D contracts, and the newly awarded SHIELD IDIQ, all of which sit outside the SCI reporting framework. Fifth Gait's teaming pattern shows it functions primarily as a specialized subcontractor on defense primes' radiation and nuclear effects work while simultaneously building its own prime capability portfolio in space weather and radiation analysis.