Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 134,026 pages of information and 213,092 images on early companies, their products and the people who designed and built them.
of 34 Queen Street, London. (1903).
of Dalston Lane, London. (1921).
Previously part of Nalder Brothers and Co
1899 Private company. The business was registered under the name Nalder Brothers and Thompson Ltd, Ernest Thompson being one of the directors.
1910 Exhibited at the Physical Society's Exhibition
1914 the factory moved to larger premises in Dalston where it continued to operate until 1969
1920 Jan. Physical and Optical Societies Exhibition. Exhibitor of electrical instruments. 
1925 Nalder Brothers and Thompson added a new bay to their instrument shop at the Lane Works, 97A, Dalston-lane, London, E8.
1937 Electrical engineers 
1961 Electrical and mechanical engineers, specialising in electrical measuring instruments