How the SBA Selects the Size Basis

The Small Business Administration applies different measurement metrics depending on the capital intensity of the industry [1].

  • Receipts-Based Standards: Applied primarily to service, retail, and construction sectors (e.g., NAICS 541511). Size is determined by averaging the firm's gross receipts over five completed fiscal years [1].
  • Employee-Based Standards: Applied to manufacturing, mining, and wholesale trade sectors. Size is determined by counting the average number of employees for each pay period over the preceding 24 calendar months [1].

In federal procurement, a contractor must satisfy the specific size standard assigned to the NAICS code listed on the contract solicitation rather than their overall primary code [2].