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 Research21,714
873100Commercial physical research8,756
87310000Commercial physical research8,756
873101Biological research5,788
87310100Biological research1,986
87310101Agricultural research609
87310102Biotechnical research, commercial3,043
87310103Food research150
873102Commercial physical research2,546
87310200Commercial physical research651
87310201Chemical laboratory, except testing202
87310202Commercial research laboratory850
87310203Computer (hardware) development560
87310204Engineering laboratory, except testing227
87310205Industrial laboratory, except testing56
873103Natural resource research2,383
87310300Natural resource research330
87310301Energy research844
87310302Environmental research1,209
873199Commercial physical research, nec2,241
87319901Electronic research673
87319902Medical research, commercial1,568