Also consult the applicable regulations in the Code of Federal Regulations which are in Title 13, Code of Federal Regulations, part 121 (13 CFR part 121), Small Business Size Regulations. SBA's size regulations pertaining to Federal procurement are also found in the Federal Acquisition Regulation...
For businesses more focused on providing management consulting services, see NAICS Code 541611 - Administrative Management and General Management Consulting Services. What is the SBA NAICS 812990 revenue limit? Businesses with an annual revenue under $8,000,000 are considered small businesses by SBA. ...