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