ESD was formed in 1989 with a mission "to disseminate energy services and technologies that provide a positive benefit for future generations". Our headquarters is in the converted outbuildings of a 16th century farm about 9 miles east of the UK city of Bath.

We believe that this altruistic ambition will be best achieved through businesses working in partnership with public bodies. There need be no conflict between a business needing to make a profit and a more sustainable society; indeed many aspects of sustainable energy use can provide businesses and public bodies with significant cost savings. ESD is a private limited company and we have our own targets for creating financial value for our shareholders and partners, together with targets for environmental and social development.

ESD has a policy of paying competitive commercial wages, and our ethos encompasses shared decision making, flexible working hours, an informal working environment, and the positive involvement of employees through shareholding. The overall objectives of ESD's management style, working practices and office environment are to create a satisfying and rewarding position for all staff, whilst at the same time maintaining a high degree of professionalism and quality. Staff are consulted on major decisions, and salary awards recognise efforts made, risks taken, experience and value to the company. Staff are recognised for their efforts in materials published, and personal aspirations, skills and experience are taken into account when allocating project work, business development duties and in setting roles and responsibilities.