A set-aside reserves a contract — or part of one — for competition among a specific category of small business. Get certified in the right program and you compete in a much smaller field, sometimes for sole-source awards with no competition at all. Here’s how the major SBA programs compare on eligibility, benefit, and certification, so you can tell which ones you qualify for. Educational, not legal advice — verify against SBA and the solicitation.
How a set-aside actually works
Two ideas do most of the work: the Rule of Two, and certification.
Why a contract gets set aside
Under the FAR “Rule of Two,” a contracting officer sets a requirement aside for small business when there’s a reasonable expectation of offers from at least two responsible small businesses at fair-market prices. It’s the trigger behind most small-business set-asides — which is why a strong, visible capability statement matters.
How you become eligible
The socio-economic programs — 8(a), HUBZone, SDVOSB, WOSB/EDWOSB — now require SBA certification (self-certification has been phased out for most). Certification is the gate: no certification, no set-aside award in that program, even if you’d otherwise qualify.
The programs compared
Eligibility and certification rules change — confirm the current detail with SBA before relying on it.
| Program | Core eligibility | Signature benefit |
|---|---|---|
| Small Business | Under the NAICS size standard | Reserved small-business competition (Rule of Two) |
| 8(a) | 51%+ socially & economically disadvantaged ownership | Sole-source + set-asides; 9-year program |
| HUBZone | Principal office in a HUBZone; 35%+ employees reside there | Set-asides + 10% price-evaluation preference |
| SDVOSB | 51%+ owned/controlled by service-disabled veteran(s) | Government-wide set-asides + sole-source |
| WOSB / EDWOSB | 51%+ woman-owned (EDWOSB adds economic disadvantage) | Set-asides in SBA-designated NAICS |
| VOSB | 51%+ veteran-owned/controlled | VA “Vets First” priority |
Open the guide for each program
Eligibility, certification, and how each one plays into your bid strategy.
Small-Business Set-Asides
The Rule of Two, total vs partial set-asides, and how size is judged.
8(a)8(a) Business Development
The nine-year program for disadvantaged firms, with sole-source power.
HUBZONEHUBZone Program
Location-based eligibility and a 10% price-evaluation preference.
SDVOSBSDVOSB Set-Asides
Service-disabled veteran-owned set-asides and the SBA VetCert.
WOSBWOSB & EDWOSB
Woman-owned set-asides, required certification, and the NAICS rule.
VOSBVeteran-Owned Small Business
How VOSB differs from SDVOSB and where its set-asides apply.