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SBIR Phase II is a grant from the Department of the Air Force SBIR/STTR Program that funds continued research and development for small businesses that have successfully completed a Phase I SBIR award. Phase II builds on Phase I proof-of-concept work to advance innovations toward commercialization and federal marketplace adoption. Awards typically range from $750,000 to $1,800,000.
Eligible applicants are U.S.-based small businesses that hold a prior Phase I award under the Air Force SBIR/STTR program. Phase II funding supports R&D activities that demonstrate commercial potential and strategic defense relevance.
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Or search similar grants →Extracted from the official opportunity page/RFP to help you evaluate fit faster.
Learn how the program works, check if you meet eligibility requirements, and how to find additional local support and resources. How It Works Funding Basics Eligibility FAQ Agencies Post Solicitations Before you apply, read the entire solicitation carefully. This may prevent administrative mistakes that could disqualify your proposal.
Make sure you meet all eligibility requirements before you apply. Give yourself plenty of time to prepare your proposal. You must respond before the submission closing date.
Apply through the agency's SBIR or STTR program before the submission closing date. Participating Agencies Review Proposals Review process times vary; check with the specific agency. The program's rigorous proposal review process provides critical feedback that can help refine your concept.
If you receive funding, be strategic about how you use it, as the award amount may not cover all of your R&D expenses. Previous awardees may apply for Phase I funding for new innovations and Phase II funding for continuing R&D. Some states have matching programs to cover the costs of creating a proposal.
Awarded companies use Phase I funding to create proof-of-concepts for their innovations. Award Amounts: $50,000-$275,000 The objective of Phase II is to continue research and R&D efforts started in Phase I. Typically, only Phase I awardees are eligible for Phase II awards.
Award Amounts: $400,000-$1. 8 million Based on Phase I & II activities, small businesses pursue commercialization in the private sector and/or federal contracting marketplace. No SBIR/STTR funding is awarded in Phase III.
The Small Business Technology Transfer (STTR) program exists to unlock the power and innovative thinking of the country’s research institutions. The primary difference from SBIR is that for STTR, the small business must formally partner with a research institution.
You're eligible to apply for funding through America's Seed fund if your company: Is a for-profit entity located in the U.S. Has fewer than 500 employees (most applicants have fewer than 10). Is owned and controlled by U.S. citizens or permanent residents. Some additional restrictions apply with venture capital ownership.
See full eligibility guidelines for more details. Download the Full Eligibility Guidelines (PDF) Are non-profit organizations eligible for SBIR/STTR awards? No. A non-profit organization cannot directly receive an SBIR or STTR award.
Non-profits may be a minority investor or subcontractor or sub-grantee on a project. In addition, an STTR awardee must subcontract a portion of the award to a research institution – a scientific or educational nonprofit institution, or a Federally Funded R&D Centers (FFRDC). What non-profit research institutions qualify to participate in the STTR program?
The research institution mustbe owned and operated exclusively for scientific or educational purposes, non-profit, and located in the US. Research institutions eligible to participate in the STTR Program include: Nonprofit college or university Domestic nonprofit scientific/research organization Federally Funded R&D Centers (FFRDC) I have a business; however, I am not federally registered. Can I still apply to the SBIR/STTR programs?
You must have a Unique Entity ID (UEI) from SAM. gov to receive SBIR/STTR awards. Find organizations in your area that help entrepreneurs like you establish your business, find opportunities, prepare a proposal, and bring your idea to market.
The SBA works with a variety of local partners to train and support small businesses that are interested in receiving funding through America's Seed Fund. Use local assistance to find the help you need, including proposal assistance, SAM registration, commercialization support, and industry networking. Explore participating agencies to learn about their missions, priorities, and programs.
You can also search all topics to find opportunities that are a fit for your concept. View participating agencies → Find out everything you need to know about the SBIR and STTR programs with our program overviews and in-depth video tutorials. Presentation on how to leverage America's Seed Fund, including differences between different levels of funding and how to begin the process.
Phase 0 & State Matching Programs During the pre-proposal and preparation phases, some states have created what are known as “Phase 0” awards programs. These programs are designed to assist new applicants in their pursuit of Phase I federal SBIR/STTR awards.
According to the current listing, eligibility includes: Small businesses with successful Phase I awards. Confirm the full requirements in the official notice before applying.
The current listing shows $750,000 - $1,800,000. Verify award ceilings, matching requirements, and allowable costs in the official notice.
SBIR Phase II is funded by Department of the Air Force SBIR/STTR Program. Verify program details on the funder's official page before applying.
Yes — this listing is flagged as national in scope, so applicants across the U.S. may apply, subject to the sponsor's other eligibility criteria.
Applications go through the funder's official portal — the Apply Now link on this page goes there directly.
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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