Eesti Energia, internationally known as Enefit, is an energy group that consists of more than 20 companies and employs about 5,300 people. Enefit is the biggest energy producer and also one of the biggest producers of renewable energy in the Baltics. The company produces energy from oil shale, wind, biomass and mixed municipal waste. Besides Estonia, Enefit is also active in Latvia, Lithuania, Poland and Finland. The Enefit group offers technological solutions and maintenance services to industrial companies. Elektrilevi, the biggest distribution system operator in Estonia, also belongs to the Eesti Energia group.