As founder of Native-Hue energy management and head of net zero and compliance for Noveus Energy, John Field has promoted and advised on energy and environmental improvement initiatives for organisations in the commercial, education, hospitality industrial sectors. He is a past president of the Chartered Institution of Building Services Engineers CIBSE, also currently chair of CIBSE Certification Ltd and past chair of the Energy Services Group of the Energy Systems Trade Association ESTA. He has set up and managed Climate Change Agreements in the Data Centre sector and participation in the EU and UK Emissions Trading Schemes.