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.
Possible NAICS Codes
561210 – Facilities Support Services
541611 – Administrative Management and General Management Consulting Services
561790 – Other Services to Buildings and Dwellings
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238330 – Flooring Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance