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
813990 – Other Similar Organizations (except Business, Professional, Labor, and Political Organizations)
611430 – Professional and Management Development Training
541720 – Research and Development in the Social Sciences and Humanities
541690 – Other Scientific and Technical Consulting Services