← Winnable Library

Federal set-asides explained (SBA, 8(a), WOSB, SDVOSB, HUBZone)

Set-asides reserve certain contracts for specific categories of small business. Knowing which you qualify for — and which a given opportunity requires — is often the difference between a winnable bid and a wasted one.

The main programmes

  • Total small business set-aside — reserved for small businesses under the opportunity's NAICS size standard.
  • 8(a) Business Development — for firms owned by socially and economically disadvantaged individuals; a nine-year programme.
  • WOSB / EDWOSB — Women-Owned / Economically Disadvantaged Women-Owned Small Business.
  • SDVOSB — Service-Disabled Veteran-Owned Small Business.
  • HUBZone — firms located in, and employing people from, Historically Underutilized Business Zones.

Why it matters for fit

  • A set-aside opportunity you don't qualify for is unwinnable — no amount of capability changes that.
  • A set-aside you do qualify for shrinks the competition dramatically, which is one of the strongest inputs to whether a contract is worth pursuing.

Verify before you rely on it

  • Certifications have eligibility rules and expiry. Confirm your status in SAM.gov and the relevant programme before building a pursuit around it.
  • This is general information, not legal or eligibility advice.

See how a set-aside changes your odds on a specific contract.

Score an opportunity free

General information for federal contractors, not legal advice. Verify programme details against SAM.gov and the relevant agency.