The Hon. Oliver F. Clarke worked with the Jamaica National Building Society (JNBS) as Assistant General Manager, and then as General Manager from 1971 to 1976. He held the position of Chairman of JNBS for two decades from 1977 to 1997 and served as Deputy Chairman from 1997 until 2002, when he was reappointed Chairman. On February 1, 2017, Mr Clarke was appointed Chairman of the newly launched subsidiary, the JN Bank, as well as the restructured mutual holding company, The Jamaica National Group and the JN Financial Group.
Mr. Clarke is the Chairman of JN Money Services Ltd. (JNMS), the parent company of the JNMS Overseas companies in the United States of America, Canada and the United Kingdom. He is also a director of JN Small Business Loans Limited.
A Chartered Accountant, Mr Clarke is Chairman and former Managing Director of The Gleaner Company Limited (now 1834 Investments Limited), Chairman of The Gleaner Company (Media) Limited and Deputy Chairman of the RJRGleaner Communications Group. He is also past President of both The Private Sector Organisation of Jamaica (PSOJ) and The Inter American Press Association.
In 1990 he received the Americas Award from the Americas Foundation and in 1996 the PSOJ inducted him into the Private Sector Hall of Fame. The American Foundation for the University of the West Indies recognised him as a Caribbean Luminary in 2004, and in April 2006, the American Friends of Jamaica awarded Mr. Clarke with its International Humanitarian Award.
In 2009, he was awarded an Honorary Degree of Doctor of Laws (LLD) from The University of the West Indies, and an Honorary Degree of Doctor of Laws (Hon. LLD) honoris causas from the University of Technology; and in 2013, he received an Honorary Doctor of Laws degree from the Northern Caribbean University.