Siljansvik AB (publ), together with its subsidiaries, provides solutions for energy and digital communication in Sweden. It is involved in the operation of electricity grid, fiber optic network, and district heating network; renewable electricity and heat production, and energy systems; and provision of energy, digital, storage, flexibility, climate-neutral fuels, and digital infrastructure services. The company was formerly known as Dala Energi AB (publ) and change its name to Siljansvik AB (publ) in December 2025. The company was incorporated in 1897 and is based in Leksand, Sweden.