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.
Facilities Operations Support Services
Possible NAICS Codes
561210 – Facilities Support Services
561730 – Landscaping Services
561720 – Janitorial Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561990 – All Other Support Services