The SBA defines a small business concern as one that is independently owned and operated, is organized for profit, and is not dominant in its field. Depending on the industry, size standard eligibility is based on the average number of employees for the preceding twelve months or on sales volume averaged over a three-year period.
Following are the most frequently used definitions of small business classifications. These definitions are more formally defined in the Federal Acquisition Regulations (FAR). Further details and information about how to qualify for any of these classifications is available through the Small Business Administration (SBA) website. This is not a complete list.
If you qualify for one or more of these small business classifications, and you wish to be listed as an interested small business for federal government bid packages, it is possible register on https://www.sam.gov