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SBIR vs STTR: Understanding the Programs That Fund Innovation

Over $4 billion in annual federal R&D funding is available through SBIR and STTR. Here is how to choose the right program.

By Eric WagnerMay 15, 2026
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Two Programs, One Mission

The Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) programs represent over $4 billion in annual federal R&D funding for small businesses. But understanding which program fits your company can be confusing.

SBIR — Go It Alone

SBIR is designed for small businesses (under 500 employees) to conduct federal R&D. The key: your company does the primary research. Phase I awards typically range from $50K-$275K for 6-12 months of feasibility research. Phase II awards range from $500K-$1.7M for full development.

STTR — Partner With Research

STTR requires a formal partnership with a nonprofit research institution (university, FFRDC, etc.). The research partner must perform at least 30% of the work. This is ideal if your innovation builds on academic research or you need specialized lab capabilities.

Which Should You Pursue?

If you have in-house R&D capabilities, start with SBIR. If your technology emerged from university research or you need academic partnerships, STTR is your path. Many companies pursue both.

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