The Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) programs represent one of the largest sources of early-stage funding for technology companies in the United States. In 2026, these programs will award over $4 billion to small businesses.
What Are SBIR and STTR?
SBIR and STTR are competitive grant programs that fund research and development at small businesses. The goal is to stimulate technological innovation while meeting federal research needs.
SBIR is for small businesses conducting their own R&D.
STTR requires a partnership between a small business and a research institution (like a university).
Who Is Eligible?
To qualify for SBIR/STTR funding, your business must:
- Be a for-profit company
- Have fewer than 500 employees
- Be at least 51% owned by U.S. citizens or permanent residents
- Be the primary performer of the research (for SBIR)
- Have a formal partnership with a research institution (for STTR)
The Three Phases
Both programs use a phased approach:
Phase I: Feasibility Awards typically range from $50,000 to $275,000 for 6-12 months. The goal is to establish technical feasibility and commercial potential.
Phase II: Development Awards range from $500,000 to $1.5 million for 2 years. This phase focuses on continued R&D and prototype development.
Phase III: Commercialization No SBIR/STTR funding is provided, but agencies may award follow-on contracts. This phase is about bringing your technology to market.
Participating Agencies
Eleven federal agencies participate in SBIR/STTR:
- Department of Defense (largest program)
- National Institutes of Health
- Department of Energy
- National Science Foundation
- NASA
- Department of Agriculture
- Department of Homeland Security
- Department of Education
- Department of Transportation
- Environmental Protection Agency
- Department of Commerce (NIST)
Finding the Right Opportunity
Each agency has different priorities and topic areas. Review the solicitations carefully to find topics that match your technology. Do not try to force-fit your solution to an unrelated topic.
Application Tips
Start with Phase I
Unless you have significant preliminary data, start with Phase I. It is less competitive and gives you a foundation for Phase II.
Focus on Innovation
Reviewers want to see genuine innovation, not incremental improvements. Clearly articulate what makes your approach new and better.
Demonstrate Commercial Potential
Technical excellence alone is not enough. Show that there is a market for your technology and that you have a path to commercialization.
Address the Agency's Needs
Remember, these programs exist to meet federal research needs. Show how your technology addresses the specific topic requirements.
Common Mistakes
- Applying to topics that do not fit your technology
- Underestimating the commercial potential section
- Weak or missing letters of support
- Not following formatting requirements exactly
- Submitting without adequate preliminary data
Beyond the Grant
SBIR/STTR success can open doors to additional funding, partnerships, and customers. Many successful companies use these programs as a launching pad for growth.
Get Started Today
GRANTPATH.AI helps small businesses find and apply for SBIR/STTR opportunities. Our AI matches your technology profile with relevant topics and helps you prepare competitive proposals.

