This means that you'll be able to search for NAICS codes directly (if that's your jam). We'll do the math; let's make better data on public procurement together.
Equipment and Materials Testing: Prefabricated Structures and Scaffolding
Possible NAICS Codes
238990 – All Other Specialty Trade Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
541350 – Building Inspection Services
238190 – Other Foundation, Structure, and Building Exterior Contractors
115310 – Support Activities for Forestry