The competition began in the 2010 English cricket season with Clydesdale Bank, previously sponsor of the Twenty20 Cup, agreeing to a three-year sponsorship.
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Yorkshire Bank are the current sponsors, taking over the naming rights from their parent company Clydesdale Bank from the 2013 edition.
World Bank | Bank of America | West Bank | Deutsche Bank | Bank of England | International Bank for Reconstruction and Development | African Development Bank | Asian Development Bank | Inter-American Development Bank | bank | South Bank | Lloyds Bank | Lloyds Bank (historic) | European Bank for Reconstruction and Development | National Australia Bank | Chase (bank) | West African Development Bank | State Bank of India | Canadian Imperial Bank of Commerce | Royal Bank of Canada | Commonwealth Bank | Bank of New Zealand | Bank of Montreal | Bank for International Settlements | M&T Bank Stadium | Federal Reserve Bank of New York | Federal Reserve Bank | European Central Bank | Bank | Reserve Bank of India |
He was director of Scottish United Investors from 1970 to 1983, of General Accident Fire and Life Assurance Corporation from 1971 to 1998, of the Clydesdale Bank 1981 to 1989, of Scottish & Newcastle Breweries 1981 to 1995, of Radio Clyde 1982 to 1985, of The Edinburgh Investment Trust between 1983 and 1994, of the Hambros Bank 1989 to 1998 and of the National Australia Bank from 1991 to 1996.
Over 18,000 British homeowners holding adjustable rate mortgages with Yorkshire Bank and Clydesdale Bank found in July 2010 that their monthly variable interest rates had been miscalculated by a software error.