Graham Errington

Chairman

Graham is Chairman of the Acorn Engineering Group and also co-founded the business in 1984. With his extensive engineering background and over 30 years’ experience with Acorn; Graham’s key responsibilities now include the development of the Acorn business in line with group strategy.

Jon Coiley

AME Managing Director

Jon is the Managing Director of Acorn and has over 20 years’ experience gained in the business to business service sector. He joined Acorn as Group Finance Director in 2008. Jon created Acorn’s strong purpose of Building Trust which is the foundation of our strategy for sustainable growth. Jon spent three years with Vivendi Water UK and then seven years with the Customer Systems group. He holds a BEng (Hons) in Metallurgy and Materials Science from Leeds University and is a Fellow of the Institute of Chartered Accountants.

Mike Witchell

AIS BMS Managing Director

Mike has been Managing Director for AIS BMS since November 2014. He has a wealth of industry knowledge, commercial skills and experience and is passionate about AIS BMS delivering first class service, maintenance and energy solutions to our clients. Mike graduated from the University of Hertfordshire with a BEng (hons) in Aerospace Engineering and has been working in the HVAC and controls industry for over 23 years.

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