'the sun never set on Vickers, da Costa'. The firm was also a member of the New York Stock Exchange and the Tokyo Stock Exchange. John Clay was the deputy chairman during the latter part of Ralph Vickers's term. He would later leave to found the New York-based asset manager, Clay Finlay. Sir Kenneth Berrill, the former head of the Think Tank, succeeded him as chairman in 1981. For most of the post-war period its offices were at Regis House on King William Street. When the firm proposed this move in 1955, it needed the approval of the Stock Exchange to be "so far away" from the Exchange floor. Merger & End In the mid-1980s on the eve of London's Big Bang deregulation of the London Stock Exchange, Citibank acquired stakes in the member firms of Scrimgeour Kemp-Gee and Vickers da Costa, merging them into a new entity called Scrimgeour Vickers. In the difficult trading environment in the wake of the Crash of 1987, Citicorp resolved to close the businesses and the names of the firms ceased to do business. References Further reading Meerschwam, David M. "Citicorp's Investment Bank and Vickers da Costa." Harvard Business School Case 288-025, November 1987. Stockbrokers Investment banks Investment management companies of the United Kingdom Financial services companies established in 1917 Banks of the United Kingdom Financial services companies based in the City of London Brokerage firms