The exchange had begun to see changes by that stage, as 'Big Bang' in London, involving the London Stock Exchange, of which the ISE was a part, prefaced a revolution in securities trading and broking that would open a route that Tom was to chart on behalf of the Irish unit.
The IFSC was established in that year, and with the opportunities that that, and the new European UCITS regulations would open up, a new vista of opportunity was opened up for the exchange.
As detailed in this article, written by Maire O'Connor, a sister of the Exchange's current chairman, Padraic O'Connor, the new international listings business that today exists took off. He oversaw the demerger of the Irish Exchange from the London Stock Exchange in 1995, and this spelled the end of the long standing historic relationship between the Dublin trading floor and the ISE's regional exchanges, in Belfast and Cork.
He served as chief executive of the Exchange until June 2007. More recently he served as chief executive of the Abu Dhabi Securities Exchange (ADX) (formerly the Abu Dhabi Securities Market (ADSM), before retiring in 2010. He also acted as a consultant to the World Bank, the European Union and the United States Agency for International Development, and was involved with the World Federation of Exchanges and the Federation of European Securities Exchanges.