Beginning in 1997, the Standard Industrial Classification (SIC) was replaced by the North American Industry Classification System (NAICS). This six digit code is a major revision that not only provides for newer industries, but also reorganizes the categories on a production/process-oriented basis. This new, uniform, industry-wide classification system has been designed as the index for statistical reporting of all economic activities of the U.S., Canada, and Mexico.*

View our full list of NAICS Codes here.

NAICS Codes NAICS Industry Description Size Standards
in millions of dollars
Size standards in number of employees
236220 Commercial and Institutional Building Construction
541310 Architectural Services
541330 Engineer Services
561320 Temporary Help Services
423450 Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers 100
541513 Computer Facilities Management Services $         27.5
541611 Administrative Management and General Management Consulting Services $         15.0
541614 Process, Physical Distribution and Logistics Consulting Services $         15.0
561210 Facilities Support Services12 $         38.5