Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 134,581 pages of information and 213,686 images on early companies, their products and the people who designed and built them.
of Roden Street Works, Ilford, Essex
1927 Company founded as John Ismay and Sons
1938 Ismay Industries sold the electric lamp business of John Ismay and Sons as well as its holding in Britannia Electric Lamp Works, which was John Ismay's principal customer, and its interests in Briton Lamps Ltd
1949 Name changed.
Trademarks: Ismay, Briton.
1961 Manufacturers of electric lamps.