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Board of Directors

Cerillion was founded in 1999 by Louis Hall and Guy O’Connor. The company now employs more than 350 staff worldwide, and is run by an experienced board of technology and business professionals.

Alan Howarth, Non-Executive Chairman

Alan Howarth has extensive senior executive experience in a range of national and international organisations in both the public and private sector. At Ernst & Young he was one of the founding partners of the UK Management Consulting practice. For the last 20 years he has managed a portfolio of non-executive appointments, as Chairman of both public and private companies primarily in the UK and US Technology and Health sectors. He is a Non-executive Director of Tern Plc and a Board member of Open Health Group and the Change Management Group. He is an Adviser to several other international entities.

Louis Hall, Chief Executive Officer

Louis Hall is the CEO and founder of Cerillion, having led the management buyout of the original business from Logica in 1999. Louis has worked in the enterprise software industry for over 30 years and prior to forming Cerillion held a number of product, sales and management positions at Logica.

Greg Price, Chief Financial Officer

Greg Price joined Cerillion as CFO in May 2026. He is a chartered accountant with over 20 years’ experience in senior finance roles having previously served as Chief Financial Officer of the AIM-listed software and technology businesses, Checkit plc and essensys plc. In his earlier career, Greg worked for 10 years at Diageo plc, the FTSE 100 international beverages business, before holding senior positions at Monarch Airlines and The AA.

Guy O’Connor, Non-Executive Director

Guy O’Connor is a co-founder of Cerillion and is now a Non-executive Director, having led business development at Cerillion since the management buyout. Prior to joining Cerillion, Guy was Group Director for Matheson Investment International, a subsidiary of Jardine Matheson Group.

Mike Dee, Non-Executive Director

Mike Dee is a qualified accountant (CIMA). Until July 2015, he was CEO of Manx Telecom plc and led its successful AIM IPO in February 2014. Before becoming CEO of Manx Telecom plc in April 2011, he was its Director of Finance and had been part of the British Telecom plc team which set up Manx Telecom plc in 1987. Prior to his 29 years at Manx Telecom plc, Mike spent four years at British Telecom plc. Before that, Mike held accounting and company secretary positions with the Dowty Group, Iloman Engineering and Castle Industries.

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