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 Total Marketable US Businesses
8731Commercial Physical Research21,171
873100Commercial physical research7,744
87310000Commercial physical research7,744
873101Biological research6,361
87310100Biological research1,781
87310101Agricultural research578
87310102Biotechnical research, commercial3,850
87310103Food research152
873102Commercial physical research2,506
87310200Commercial physical research668
87310201Chemical laboratory, except testing180
87310202Commercial research laboratory807
87310203Computer (hardware) development583
87310204Engineering laboratory, except testing218
87310205Industrial laboratory, except testing50
873103Natural resource research2,278
87310300Natural resource research307
87310301Energy research838
87310302Environmental research1,133
873199Commercial physical research, nec2,282
87319901Electronic research655
87319902Medical research, commercial1,627