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SBIR Basics
SBIR eligibility: do you need a company yet?
Updated July 28, 2026 · Free educational guide · verify details at the official sources linked below
To receive an SBIR award you must be a for-profit U.S. small business (≤500 employees) that is majority-owned by U.S. individuals, and your PI must be primarily employed by the company at award time. Eligibility is checked at award, not at idea stage — so pre-incorporation teams can plan, and NSF even lets you submit its Project Pitch before you incorporate.
The core rules, in one list
- Small: 500 or fewer employees, counting affiliates. It's headcount, not revenue.
- American-owned: more than 50% directly owned and controlled by U.S. citizens or permanent residents (or by other small businesses that are).
- For-profit, with a U.S. place of business, doing the work in the U.S. Any entity type works: LLC, C-corp, S-corp.
- The PI rule: the Principal Investigator must be primarily employed (>50%) by the small business at the time of award and for the duration. This is the rule that forces faculty founders to choose — or to use STTR instead (see SBIR vs STTR).
- Work share: your company must perform at least two-thirds of Phase I and half of Phase II itself.
"We haven't incorporated yet. Are we locked out?"
No — and this is the part most guides get wrong. Formally, eligibility is measured at the time of award, not when you start planning. Practically, you need a legal entity before you can submit, because submission requires SAM.gov registration, which requires an EIN, which requires a formed entity.
What a pre-incorporation team can genuinely do today:
- Submit an NSF Project Pitch. NSF's mandatory pre-screen requires no registrations at all and can be sent before you incorporate. If invited, you incorporate and register before the full proposal.
- Pick your agency and topic, talk to program staff during open windows, and draft.
- Build the technical evidence — analysis, models, simulations — that becomes your proposal's backbone.
- Start the clock early: incorporate and begin SAM.gov at least ~2 months before any full-proposal deadline. SAM alone routinely takes 2–6 weeks.
If your project needs simulation
A surprising amount of the technical groundwork can happen before you're incorporated: literature, design concepts, and early simulation studies that later become the 'preliminary data' section of a proposal. If simulation is on your critical path, ask us what's possible at your stage — including no-cost evaluation options — before you spend anything.
See if you qualify for an Ansys eval + engineering support at no cost
How access works →
Common situations, quickly
- Solo founder? Eligible. There's no minimum team size; subcontract what you can't do, within the work-share limits.
- Grad student or postdoc? The standard path is SBIR with you as PI, employed by your new company. Faculty who keep their appointment usually go STTR, where the PI may stay at the university.
- Day job? You can't be an SBIR PI while someone else employs most of your time at award — but you can apply now and make the jump if you win. Many founders do exactly that.
- VC money? Minority VC ownership is fine everywhere. Majority ownership by multiple VC/PE funds is allowed only at agencies that opted in — NIH is the main one — SBIR only, never STTR.
- No PhD, no revenue? Neither is required, anywhere in the program.
One more 2026 note: the reauthorization added stricter disclosure of foreign ties (investors, personnel, partnerships with "countries of concern"). Answer those forms carefully — they're disqualifying if mishandled.
Official sources for this guide: 13 CFR 121.701–705 (eCFR) · SBIR.gov — eligibility FAQ · NSF Seed Fund — required registrations. Figures change; always confirm on the official page before relying on them.
