Board of Directors


Providing an excellent network of experience and knowledge, our Board of Directors are an impressive set of executives from across the business world.

Mike Thornton


Mike is a Fellow of the Institute of Chartered Accountants. He joined the Group in December 2011 as Finance Director of the main trading subsidiary and was appointed as Chief Financial Officer of the Group in May 2012. He also acts as Company Secretary. Mike was appointed Group Interim Chief Executive Officer in September 2014 and then to CEO in October 2014.

Mike has a first class honours degree from Sheffield University in Civil and Structural Engineering. He previously worked as an Audit Director at PwC, the global professional services firm. Throughout his 14-year career at PwC, Mike progressed quickly through the ranks and has worked at their offices in Leeds, London and Hull.

Mike has extensive experience across a range of industries with an emphasis on manufacturing and particular experience of the AIM regime and with a desire to innovate and a passion for inspiring success, he is sure to prove an exciting addition to the SI team.

Outside of work Mike's time is occupied by his two young daughters and he also enjoys cycling, golf and watching football and Formula 1.

Mike White

Product Development Director

Mike graduated from Brunel University with a first-class honours degree in product design in 1996. After winning the James Dyson Award for product design at London’s New Designers exhibition, he worked for Dyson Appliances before joining SI as a Design Engineer in 1997.

The first project that Mike was involved with at SI, Logic®, went on to win Best Medical Device in the 1999 Plastics and Rubber Weekly (PRW) Awards for Excellence and has patents filed worldwide.

A member of the Chartered Society of Designers since 2002, Mike was appointed to the Management Board of SI as Design Director in 2006 and is dedicated to expanding the company’s product portfolio with innovative, ergonomic and commercially successful instrumentation.