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Detection of Uncrewed Aircraft Systems in Cluttered Environments (STTR) is sponsored by U.S. Air Force, AF Cyberworx (via SBIR/STTR). This STTR topic seeks novel approaches to detect low-flying, relatively small, and slow UAS threats in cluttered environments.
The Air Force is interested in emerging work in acoustics and wireless/RF signal sensors, as well as artificial intelligence and machine learning, to address the difficult C-UAS detection problem by 'seeing' through trees and buildings. Proposed solutions need to provide a cost-effective method for detection of UAS threats for large military installations.
Small businesses can participate in this program, often in partnership with research institutions.
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Or search similar grants →According to the current listing, eligibility includes: Small businesses in partnership with research institutions. Confirm the full requirements in the official notice before applying.
Detection of Uncrewed Aircraft Systems in Cluttered Environments (STTR) is funded by U.S. Air Force, AF Cyberworx (via SBIR/STTR). Verify program details on the funder's official page before applying.
Start from the official opportunity page linked in this listing — it carries the sponsor's submission instructions.
Past winners and funding trends for this program
The Department of the Navy pre-released FY26 Release 3 SBIR/STTR on June 3, 2026 — 12 BAA topics and one Commercial Solutions Opening for Counter-Unmanned Air Systems. Topics span adaptive sensor management, anomalous behavior detection, satellite imagery optimization, real-time zero-trust data for combat systems, and gun weapon systems modernization. Technical questions cut off June 23. Proposals open June 24 and close July 22. NAVAIR and NAVSEA co-host a Counter-UAS webinar June 16. Phase I funding tops out at $315,000. The CSO open topic for AI-powered drone defense is the structural news: it's the first time NAVAIR has used a CSO vehicle to fund counter-drone work outside the conventional Phase I/II structure, and it changes how small businesses can engage with the Navy's most urgent capability gap.
Read articleOn June 3, the Department of the Navy pre-released FY26 Release 3 SBIR/STTR — 12 conventional BAA topics and a Counter-Unmanned Air Systems Commercial Solutions Opening. Topics span adaptive sensor management, anomalous behavior detection, satellite imagery optimization, real-time zero-trust data for combat systems, and gun weapon systems modernization. The proposal window runs June 24 to July 22, 2026. The technical questions cutoff is June 23. NAVAIR and NAVSEA are hosting a Counter-UAS webinar on June 16. Here is what the topic mix actually signals about Navy priorities and how small businesses should position.
Read articleNSF's restarted SBIR/STTR program carries two transition rules almost nobody has calendared. Project Pitch invitations issued on or after July 3, 2025 must be converted to a full proposal by November 4, 2026. Phase I awardees whose awards started on or after November 6, 2023 must submit Phase II by the same date. Both cohorts were created by the program lapse, and both cliffs are hard.
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