The Small Business Innovation Research (SBIR) program distributes $4.2 billion annually across 11 federal agencies. Phase I ($50K-$300K), Phase II ($750K-$2M), and Phase III (commercialization) offer the clearest pathway for tech startups to win federal revenue without competing on price or proven track record. The 2026 reauthorization increased budgets 12% and simplified Phase III pathways.
SBIR vs. STTR
See our full SBIR vs. STTR comparison. SBIR: standalone company. STTR: partnership with research institution. If you're a tech startup alone: SBIR.
Phase Progression
Phase I ($50K-$300K, 6 months)
Feasibility study. Success rate: 10-15%. You propose concept, timeline, commercialization plan. Budget 3-5 submissions before first win.
Phase II ($750K-$2M, 24 months)
Full product development. Success rate: 30-40% of Phase I awardees. Requires commercialization proof: customers, letters of support, revenue model.
Phase III & Phase IIB
Phase IIB ($300K-$500K) is new bridge. Phase III is commercialization where agencies procure your result at market rate. See Phase III guide.
SBIR by Agency
DoD: $1.1B (largest). Topics: cybersecurity, AI/ML, autonomous systems. Phase I: $150K, Phase II: $1M. See DoD guide.
NIH: $900M. Topics: medical devices, digital health, diagnostics. Phase I: $300K, Phase II: $2M. See NIH guide.
NSF: $300M. Topics: foundational R&D, climate tech, quantum computing. Phase I: $300K, Phase II: $2M.
All topics at SBIR.gov.
Winning Strategy
Pick the Right Topic
Don't force-fit your tech to a topic. Find topics matching your roadmap. Reviewers give 30 minutes per proposal. Make innovation clear in first 2 pages.
Winning Structure
Technical (40%): Explain what you'll build. Show you've thought through hard problems. Cite prior art and explain innovation over SOTA.
Commercialization (30%): Name specific customers. Total addressable market. Revenue model. Go-to-market. Current traction (customer letters critical).
Team (20%): Resumes showing relevant experience and track record of shipped products.
Budget (10%): Itemized, justified. Overheads 18-35%. Don't lowball.
Pro Tips
- Use data. Test results > claims.
- Name specific customers. "UC San Francisco Hospital" > "healthcare organizations."
- Be honest about risks. Frame as "questions to answer in Phase I."
- Graphics > text. Invest 5-10 hours in technical diagrams.
Post-SBIR Revenue Pathways
Phase II follow-on ($750K-$2M), Phase III contracts ($2M-$20M), GSA Schedule ($1M-$5M), commercial revenue (3-5x larger TAM). Best outcome: Phase I + Phase II, then license to large contractor for Phase III.
Getting Started
Visit our SBIR proposal guide. Find 2-3 matching topics. Talk to program officers (free feedback). Expect 3-5 submissions before first win. 5th proposal >> 1st.