John Marks

Finance Director

John was CEO of his own wholesale food cash & carries with 6 branches in London and the Home Counties for 38 years, employing 125 staff with a turnover of in excess of £25m. For several years he combined this with a board director position for a large voluntary buying group in the food and drinks business. On selling his company John spent two years as a business adviser and mentor to start up businesses, helping them develop their strategy, operational solutions and processes. For the last 10 years John has been a CEO in a local government authority, adding public sector experience to his wealth of private sector management expertise. John is Diadem’s Financial Director and business consultant.