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
541990 – All Other Professional, Scientific, and Technical Services
541330 – Engineering Services
334513 – Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
311111 – Dog and Cat Food Manufacturing
221116 – Geothermal Electric Power Generation