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SBIR vs STTR

The practical difference between SBIR and STTR for U.S. small technical businesses.

Last verified by NonDilute: 2026-04-29. Official notices and agency instructions control.

SBIR

SBIR is generally the small-business-led path. It is built for small businesses doing federal R&D with commercialization potential.

STTR

STTR requires formal collaboration between a small business and a nonprofit research institution. It is useful when the technical work depends on university or lab participation.

Founder takeaway

If the company can own and execute the R&D directly, start by checking SBIR. If a research institution is structurally central to the work, check STTR and verify the required work split in the official notice.

Official sources to verifySBIR.gov program basics →NIH SBIR/STTR basics →

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