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
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541713 – Research and Development in Nanotechnology
541330 – Engineering Services
541511 – Custom Computer Programming Services
561790 – Other Services to Buildings and Dwellings
561210 – Facilities Support Services