Leadership Team

Our directors are some of the most experienced and respected professionals in the industry, having earned their stripes with organisations including Sellafield, Magnox, AWE and UKAEA. Long-serving and dedicated members of the team, Jim, Michelle, Andy and Mark have spearheaded a long and continued period of growth and success for NSG.

Jim Porter, Managing Director

Jim has been with NSG for over 30 years and has played a key role in the development of the company. Prior to his appointment as Managing Director in 2016, Jim was responsible for NSG’s Science and Technology division, overseeing the development of the company’s technical and R&D capability. A University of Birmingham Chemistry graduate, Jim spent the early years of his career with British Nuclear Fuels plc. Jim loves attending football matches and walking his dog in his spare time.

Gráinne Carpenter, Consultancy Services Director

Gráinne joined NSG’s Consultancy Services team in 2013 in the role of Principal Consultant and headed up NSG’s then new office in Cheltenham. Originally focused on developing business in the South West, Gráinne took on a greater national outlook when she was appointed Head of Consultancy in 2015. Gráinne’s instrumental role in the successful expansion of NSG’s Consultancy Services division led to her appointment as Consultancy Services Director in August 2021. Originally hailing from Dublin, Gráinne has over 20 years’ experience in the nuclear industry and is the proud owner of cats and hens and a keen runner.

Andy Deall, Projects North Director

Andy joined NSG in the role of Programme Manager in 2011 and was chosen to lead the newly-formed Projects North division three years later. Having started his career as a Project Engineer with Magnox Electric, Andy then moved into project management and successfully delivered large decommissioning projects at numerous sites around the UK, including Sellafield, AWE, Berkeley and LLWR. Thanks to his extensive experience and passion for delivery, Andy is highly respected by customers and colleagues alike. A proficient golfer, Andy also enjoys hiking in the Lake District.

Mark Coles, Projects South Director

Mark has been with NSG since 2006 and has led the Projects South division since 2014, as well as being responsible for environmental, safety, health and quality matters. Since joining the company, Mark has been a major force behind NSG’s continued presence at AWE’s Aldermaston site. With a background in project delivery and management, Mark started his career with Alstec at British Energy stations before switching to AWE’s Cardiff and Aldermaston sites. Mark is a keen runner and his love of Formula 1 has seen him travel to numerous Grands Prix around the world.