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
541611 – Administrative Management and General Management Consulting Services
541620 – Environmental Consulting Services
541380 – Testing Laboratories
221310 – Water Supply and Irrigation Systems
541690 – Other Scientific and Technical Consulting Services