E4 group is a Russian engineering company, one of the biggest[2] in the Russian Federation.

With a presence in all federal districts of Russia, it has a total of 20,000 employees (up to 30,000 with affiliated firms).

The current CEO of E4 Group is Danil Nikitin.

The main achievements of the company in 2007 were a market share of 15 percent; consolidated revenue growth of 90 percent; contract sales growth of 150 percent; and net profit growth of 260 percent.

Projects include the N’yagan Regional Power Plant; construction of CPP-410 Krasnodar TPP; boiler, North-west borough of Kursk – construction of CCP 125MW; and construction of a nuclear waste storage facility at Zheleznogorsk, Krasnoyarsk Krai.