Greenbirdie is an engineering consultancy company of environment and energy. The head office of Greenbirdie is located in Paris. The company has two affiliations in Bordeaux and Avignon. The company supports communities, SMEs, large companies and major players in the world of energy in the development and maintenance of their economic performance, by integrating an environmental and social dimension. The company's services in the field of energy include support in reducing energy consumption. The company offers an implementation of energy management system (ISO 50001), energy audits, optimization and negotiation of gas and electricity purchases, the implementation of energy performance contracts, etc. The group is also present in other forms of green energies via its subsidiaries GB Solar and GB Biomass. The first is specialized in the design and production of high-power photovoltaic power plants, in Europe and Africa. The second is active in biomass. It is responsible for the study and sizing of plants and wood biomass boilers.