EGO Group was established in 2011, originally as Olimpia holding company, as a modern and diversified energy service provider, capable of seizing the commercial opportunities offered by the distributed energy and energy efficiency markets. EGO became the market leader within the green certificate market, inheriting and exceeding the success achieved by the previous experience with Elettrogreen, sold in 2010 to the French-Belgian group GDF-Suez.

The group rapidly acquired a key role also in the direct marketing of the electricity produced by the distributed power plants in Italy through its operating company Green Trade (also founded in 2011, now renamed EGO Energy). The consolidated turnover grew rapidly and reached almost 800 million Euros in 2015 thanks also to the increasing contribution of the energy efficiency services and the business of White Certificates trading through Elettrogreen Power (now part of EGO Energy) a UNI-11352 certified Energy Service Company (ESCO).

Nowadays Ego Energy is one of the leader in the Power Purchasing Agreement (PPA), one of the biggest emerging business in the energy sector.