It was formed in 2007 when Envirocare acquired three other nuclear waste disposal companies: Scientech D&D, BNG America, and Duratek.

EnergySolutions has operations in over 40 states, with a licensed landfill to dispose of radioactive waste approximately 60 miles (97 km) west of Salt Lake City in Tooele County, Utah.

[5] On February 2, 2006, Envirocare announced the $90 million purchase of BNG America, a subsidiary of British Nuclear Fuels (BNFL) based in Virginia.

On February 7, 2006, EnergySolutions announced it would buy Maryland-based Duratek, a publicly traded company, for $396 million in an all-cash deal.

The deal was financed by private equity firms, led by Lindsay Goldberg & Bessemer of New York, Creamer Investments, and Peterson Partners both of Salt Lake City.

[7] Since its inception, Energy Solutions has collected primarily domestic, Class A nuclear waste for its west Utah desert site.

Through the acquisition, the company took over operational and management responsibilities of several Magnox atomic plants from British Nuclear Fuels plc.

In 2009 it attempted to bring 20,000 tons of waste from Italy's shuttered nuclear power program through the ports of either Charleston, South Carolina, or New Orleans.

Most of the radioactive waste from the decommissioning of the San Onofre Nuclear Generating Station is going to the Energy Solutions facility in Clive, Utah, and is being transported by rail.