Meet the expert...
Mark Chadwick
Managing Director at ENGIE Impact

Mark Chadwick is the Managing Director of ENGIE Impact EMEA, spearheading the company's sustainability solutions team. With over two decades of experience in sustainability and technology, Mark leads critical initiatives to accelerate sustainability transformation in businesses, cities, and governments across the region. His expertise lies in designing, financing, and delivering complex decarbonisation programmes that meet increasingly challenging expectations.
Prior to joining ENGIE Impact, Mark founded Carbon Clear in 2005, following a successful ten-year career in tech development during the emerging Internet industry in San Francisco and London. Under his leadership, Carbon Clear grew to become one of the UK's largest climate change firms, serving over a quarter of the FTSE1000 and helping large companies manage their GHG emissions. In 2017, Mark successfully sold the business to EcoAct, a leading Paris-based climate firm.
Mark's approach to sustainability transformation emphasises long-term thinking and detailed planning, leveraging advanced digital tools to analyze interconnections between projects and achieve clients' goals at the lowest total cost of ownership. His work spans various sectors, including hard-to-decarbonise areas such as green thermal energy. Mark's commitment to sustainability is bolstered by his experience in both the tech and environmental sectors, positioning him as a leader in driving impactful change in the face of global climate challenges.