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Program

NSF SBIR Phase II

Funds United States small businesses to mature proven concepts into development work through the National Science Foundation route.

National Science FoundationUnited StatesGrant

NSF SBIR Phase II follows the Phase I feasibility award and funds the next stage of deep-tech development inside the National Science Foundation's small-business portfolio. The program sits under the same Seed Fund umbrella that helps move research-backed ideas toward commercial use, but it expects teams to have already cleared the first technical hurdle. By Phase II, the company is building from …

Max award$1M
Realistic median$1M
Success rateOver 30%
Decision time—

No upcoming rounds verified. Cadence: Multiple per year.

Last verified: 11 May 2026Source: seedfund.nsf.gov