A business that is independently owned and operated, is not dominant in its field of operation, and qualifies under various criteria prescribed by the Small Business Administration for number of employees, average annual receipts, etc.
A federal agency which provides assistance of all kinds, Administration including loans, to small businesses.
The Small Business Administration has many definitions of a small business. In general, any business with revenue under $500,000 per year will qualify, but many larger agricultural and commercial businesses may also apply. The definition is found in section 3(a) of the Small Business Act (15 U.S.C. 632 (a)) and implemented by the Small Business Administration under 13 CFR part 121, or any successor provisions.