Kemball Bishop & Co. Ltd. was a chemicals manufacturing company at the Crown Works in Bromley, London from c.1901 to 1958.
The company is notable for its work on the development and production of penicilin in 1944. War-time conditions made industrial production of penicilin difficult and a number of British chemicals companies, including Kemball Bishop, took up the challenge. One of the major goals was to have an adequate supply of the drug on hand for the proposed D-Day invasion of Europe.
Kemball Bishop & Co. Ltd. was taken over by Pfizer Inc., an American multinational pharmaceutical company, in 1958.