Industry: 8731—Commercial Physical and Biological Research
Establishments primarily engaged in commercial physical and biological research and development on a contract or fee basis. Noncommercial research establishments funded by endowments, grants, or contributions are classified in Industry 8733. Separate establishments of aircraft, guided missile, or spacecraft manufacturers primarily engaged in research and development on these products are classified in Manufacturing, Major Group 37.

Agricultural research, commercialFood research commercial
Biological research commercialIndustrial laboratories commercial research: except testing
Chemical laboratories, commercial research except testingPhysical research commercial
Engineering laboratories, commercial research: except testingResearch and development physical and biological: commercial
Codes Titles Number of US Businesses
8731Commercial Physical Research21,766
873100Commercial physical research7,977
87310000Commercial physical research7,977
873101Biological research6,411
87310100Biological research1,824
87310101Agricultural research621
87310102Biotechnical research, commercial3,810
87310103Food research156
873102Commercial physical research2,616
87310200Commercial physical research688
87310201Chemical laboratory, except testing201
87310202Commercial research laboratory861
87310203Computer (hardware) development587
87310204Engineering laboratory, except testing222
87310205Industrial laboratory, except testing57
873103Natural resource research2,410
87310300Natural resource research321
87310301Energy research859
87310302Environmental research1,230
873199Commercial physical research, nec2,352
87319901Electronic research668
87319902Medical research, commercial1,684