Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,095 pages of information and 233,633 images on early companies, their products and the people who designed and built them.
1964 Lighting was an important business for the company but there was need for increased scale to compete internationally, and to handle new technologies such as production of fluorescent tubes, so the company's lighting interests were merged with those of AEI - the new venture was called British Lighting Industries in which Thorn had a controlling interest; this became one of the largest lighting groups in Europe.
1995 Thorn Lighting Group was floated as a public company, TLG
1997 Profits slumped