Trollope & Colls
The Company was formed out of the merger of George Trollope & Sons (founded by Joseph Trollope, a wallpaper hanger, in 1778) and Colls & Sons (founded by Benjamin Colls, a painter and decorator, in 1840).
The merged firm started to specialise in civil engineering and during World War I undertook pioneering work on reinforced concrete. In 1969 the Company was acquired by Trafalgar House. By 1994 it was the largest contractor in the United Kingdom by turnover.
Projects undertaken by the Company included: the Institute of Chartered Accountants completed in 1892, Claridges completed in 1897, the Baltic Exchange completed in 1903, Lloyds Bank in Lombard Street completed in 1931, Trawsfynndd power station completed in 1962 and the Stock Exchange Tower completed in 1972.
- Trollope & Colls at the National Archives
- The British building industry since 1800 By Christopher Powell Page 220 Routledge, 1996, ISBN 978-0-419-20730-6
- Kvaerner Is Close to Bidding for Troubled Group: Lifeline for Trafalgar House? International Herald Tribune, 28 February 1996
- Trollope & Colls, City builders for 200 years 1778-1978, Published in 1978, Printed by Precision Press for Trollope & Colls, Marlow, Buckinghamshire