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
531190 – Lessors of Other Real Estate Property
488119 – Other Airport Operations
518210 – Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services
926120 – Regulation and Administration of Transportation Programs
922190 – Other Justice, Public Order, and Safety Activities
541611 – Administrative Management and General Management Consulting Services