Our Board

Executive Directors

TClarke is led by people with exceptional experience of the industry and a genuine sense of stewardship. Both our Group CEO and MD began as apprentices with TClarke and are fully qualified professionals. Like so many of our leaders, their careers have been built on engineering and project achievements, working with our clients and taking the TClarke brand forward.

Mark Lawrence

Group Chief Executive

Appointed to Board: 2nd May 2003. Mark has spent 33 years with the Company following completion of an electrical apprenticeship with us in 1987. Progressing through roles including Electrical Engineer, Technical Director (1997), Executive Director (2003) and Managing Director – London Operations (2007), he was appointed Chief Executive Officer from 1st January 2010. Mark is a hands-on leader who takes personal accountability for and pride in TClarke’s performance and, ultimately, our client’s satisfaction. Mark regularly walks projects sites and gets directly involved with many of our clients, contractors and our supply chain.

Mike Crowder

Group Managing Director

Appointed to Board: 1st January 2007 Mike has over 35 years of significant experience in the construction industry. His project leadership has included delivering flagship jobs and a series of  large infrastructure projects. Mike holds overall responsibility for Operations to ensure all projects are properly managed. He actively monitors engineering departments and projects as a Main Board Member. Responsible for Group health and safety, Mike is also directly involved with health and safety risk management, raising awareness, influencing attitudes and changing behaviours.

Trevor Mitchell

Group Finance Director

Appointed to Board: 1 February 2018. Trevor is a Chartered Accountant and accomplished Finance professional. With extensive experience across many sectors including financial services, construction and maintenance, his previous appointments include roles within organisations such as Balfour Beatty plc, Kier Group plc, Rok Plc, Clerical Medical Group, Halifax plc. Trevor has worked within our business since October 2016, simplifying and improving the Group’s financial controls, structures and procedures. Trevor also holds the position of Company Secretary.

Non-executive Directors

Our Non-executive Directors have deep experience from across business sectors. It brings a wide range of knowledge on digital transformation, solid growth and strong governance to bear for the benefit of our business.

Iain McCusker


Peter Maskell

Senior Non-Executive Director

Appointed to the Board: 1st January 2018 Peter served as chairman of Phillips Electronics UK Group during a 37 year career at Phillips Electronics. He oversaw the digital transformation of Phillips’ UK business from product supplier to a full service, systems and solutions provider. He has extensive experience in lighting and healthcare sectors.

Aysegul Sabanci

Non-Executive Director

Appointed to the Board: 1st May 2022 Aysegul Sabanci has considerable international experience at executive level in the Construction and Services sectors. Until recently Aysegul was Group Head of Procurement at ISG where she gained considerable experience in operating in Europe.

Jonathan Hook

Non-Executive Director

Appointed to the Board: 1st July 2021 Jonathan has recently retired as a partner at PwC where he was the global leader of the Engineering & Construction practice. Jonathan is a well known and respected figure in the industry speaking at many industry events. He has been a judge for a number of industry awards including the Building Awards and Women in Construction awards.