Nikita Transphase Adducts Pvt. Ltd.
- Manufacturer of denatonium benzoate, also produces rubber additives. Located in India.
- http://ntapl.com

CnerG-Tech Corporation
- Producer of denatonium benzoate and denatonium saccharide, located in India.
- http://www.cnerg.com

C-Tech Corporation
- Specializes in manufacturing the world's most bitter chemical, denatonium benzoate. Also manufacture several other chemicals including pigments, flame retardants, and pharmaceutical intermediates.
- http://www.ctechcorporation.com/

Bitrex
- A Brand of Denatonium Benzoate, discovered in 1958 by Macfarlan Smith Ltd. Includes history, technical data, applications, and the campaign for safety.
- http://www.bitrex.com/

RC Pharmachem
- Manufacturer of denatonium benzoate, bitterants, and aversive and pharmaceutical intermediates. Includes product applications.
- http://www.rcpharmachem.com/

Sentinel
- Belgian company providing denatonium benzoate and saccharide in various forms, for use as bittering agents. Includes applications and technical data.
- http://sentinel.antalys.net/