Possible NAICS Codes
541715 – Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
541713 – Research and Development in Nanotechnology
483112 – Deep Sea Passenger Transportation
483211 – Inland Water Freight Transportation
488210 – Support Activities for Rail Transportation
488310 – Port and Harbor Operations
488390 – Other Support Activities for Water Transportation
541330 – Engineering Services
541720 – Research and Development in the Social Sciences and Humanities
562991 – Septic Tank and Related Services