Siemens Brothers

Siemens Brothers and Company Limited owned an electrical engineering design and manufacturing business in London, England. It was first established as a branch in 1858 by a brother of the founder of the German electrical engineering firm Siemens & Halske. The principal works, set up in 1863, was at Woolwich for cables and other light-current electrical apparatus. The site is now at the south end of the Thames Barrier. A new works was built at Stafford in 1903 for the manufacture of generators of all kinds and sizes and motors for complete factories, locomotives etc.

During World War I Siemens Brothers was bought by a British consortium because most of its ownership was in the hands of enemy aliens.

Siemens Brothers and Company Limited was bought by Associated Electrical Industries in 1955. At that time its business was described as follows: manufacture sale and installation of submarine and land cables, overhead telegraph, telephone and power transmission lines, public and private telephone exchanges and carrier transmission equipment for telephone lines and marine radio and signalling equipment. Through subsidiaries it was engaged in the manufacture of lamps of all kinds, miscellaneous electrical equipment and electrical railway signals.

On 1 October 1858, the German firm Siemens & Halske established an English firm, Siemens & Halske & Company, a partnership of William Siemens, cable manufacturer R S Newall of Gateshead and Siemens & Halske of Berlin. Its purpose was to help lay Newall's newly developed submarine communications cable. The London branch was under the control of William, later Sir William Siemens, formerly known as Carl Wilhelm Siemens (1823–1883). Hanover-born Sir William went to England in 1843 to sell a patent he shared with his brother Werner. He found employment in Birmingham with engineers Fox, Henderson & Co and became a naturalised British subject in 1859, the same day as he married the daughter of an Edinburgh lawyer. Her brother was Lewis Gordon business partner of R S Newall. During the 1850s Sir William developed the Siemens regenerative furnace.

...
Wikipedia