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 Research21,744
873100Commercial physical research8,825
87310000Commercial physical research8,825
873101Biological research5,896
87310100Biological research2,005
87310101Agricultural research608
87310102Biotechnical research, commercial3,132
87310103Food research151
873102Commercial physical research2,464
87310200Commercial physical research630
87310201Chemical laboratory, except testing199
87310202Commercial research laboratory804
87310203Computer (hardware) development551
87310204Engineering laboratory, except testing222
87310205Industrial laboratory, except testing58
873103Natural resource research2,346
87310300Natural resource research328
87310301Energy research821
87310302Environmental research1,197
873199Commercial physical research, nec2,213
87319901Electronic research647
87319902Medical research, commercial1,566