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)
541330 – Engineering Services
541511 – Custom Computer Programming Services
541713 – Research and Development in Nanotechnology
336411 – Aircraft Manufacturing
541714 – Research and Development in Biotechnology (except Nanobiotechnology)