AEA Technology Group plc, formerly AEA Technology plc, is the energy, climate change and data management consultancy operating in the United Kingdom, Europe, China and the United States. AEA Technology plc and its subsidiaries are energy and climate change consultancies. It is a provider of advisory services to the United Kingdom Government and work with the European Union and major private sector organizations. The Company has one product and service, which includes consultancy, policy support, programme management and data management. Its climate change index model is used in the Greenhouse-gas Observatory Service. As at March 31, 2010, its subsidiary includes Project Performance Corporation. In November 2012, Ricardo Plc acquired the business, operating assets and employees engaged in the business of AEA Technology Plc, a subsidiary of AEA Technology Group plc.