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
541990 – All Other Professional, Scientific, and Technical Services
611310 – Colleges, Universities, and Professional Schools
541720 – Research and Development in the Social Sciences and Humanities
334519 – Other Measuring and Controlling Device Manufacturing