NAICS Codes
Primary North American Industry Classification System codes for Realistic Results. Use these classifications for procurement, vendor registration, and contract matching across federal, commercial, and industrial projects.
Primary NAICS Codes
The codes below represent our core construction and specialty trade classifications for government and commercial contracting.
- 236220Commercial & Institutional Building Construction
New construction, additions, and renovations for commercial, institutional, and industrial facilities.
- 238160Roofing Contractors
Roof replacement, repair, storm restoration, and exterior weatherproofing scopes.
- 541330Engineering Services
Planning support, field coordination, and technical services tied to construction delivery.
- 238990All Other Specialty Trade Contractors
Specialty trade work not classified elsewhere, including multi-discipline field execution.
- 238290Other Building Equipment Contractors
Mechanical and building equipment installation, replacement, and related construction support.