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
541713 – Research and Development in Nanotechnology
813920 – Professional Organizations
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541714 – Research and Development in Biotechnology (except Nanobiotechnology)
541620 – Environmental Consulting Services
525120 – Health and Welfare Funds