IsoEnergy Ltd. engages in the acquisition, development, evaluation, and exploration of uranium mineral properties. It primarily holds interest in the Larocque East, Geiger, Thorburn Lake, Radio, Hawk, Ranger, and Collins Bay Extension properties in the Athabasca Basin of Saskatchewan, Canada, as well as interests in various other properties. The company was incorporated in 2016 and is headquartered in Saskatoon, Canada. IsoEnergy Ltd. is a subsidiary of NexGen Energy Ltd.