Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,506 pages of information and 233,942 images on early companies, their products and the people who designed and built them.
of 1-3 Chicheley Street, York Road, London
of 100, Westminster Bridge-rd., London (1900)
1897 The company was registered on 15 July, to acquire the business and patent rights of Roots and Venables.  Directors: A. McDonnell, Charles Pratt, F. D. C. Shaw-Kennedy, J. D. Roots, C. E. Venables.
1890s Manufacturing gas and oil engines in horizontal and vertical forms rated up to 6 nhp 
1902 Acquired by Armstrong Whitworth
By 1903 the company was selling Roots cars made by Armstrong Whitworth.