On federal work, the "Rule of Two" governs this: for contracts above the micro-purchase threshold, an agency must set the work aside for small businesses if the contracting officer reasonably expects to get competitive offers from at least two small businesses at a fair market price. Size is determined by SBA's industry-specific standards — either employee count or average annual revenue — and firms typically self-certify their size status when registering in SAM.gov. Set-asides can be total (the entire contract is reserved) or partial (only a portion is), and they sit alongside more targeted socioeconomic programs — 8(a), HUBZone, SDVOSB, WOSB — that layer additional eligibility requirements on top of basic small business status; state and local agencies run parallel small-business and DBE programs, though eligibility thresholds and certification processes are set independently by each one. Whether a project is a small business set-aside is exactly the kind of eligibility signal worth catching before a company spends estimating hours on a bid it may not even be allowed to submit — or, for a business that qualifies, before it misses an opportunity where the field of competitors is deliberately narrower than usual. Nonlinear surfaces set-aside and socioeconomic eligibility requirements as part of qualifying an opportunity, alongside scope, deadlines, and bonding.
Knowledge Base
What is a small business set-aside?
A small business set-aside is a public contract — or a defined portion of one — reserved exclusively for companies that qualify as "small" under the government's size standards, so larger firms aren't allowed to compete for it at all.
