ENERGYNEST is a thermal energy storage company founded in 2011 by Professor Pål Bergan and Øivind Resch.

The company manufactures industrial scale thermal energy storage systems.

[5] In June 26, 2020, ENERGYNEST and Siemens Energy announced a long-term partnership for joint development of thermal energy storage systems, in which the company eyes to incorporate their proprietary thermal battery with Siemens technologies and projects.

[6] In April 2021, Infracapital invested $110 million and acquired a majority stake in the company.

[9][10] In February 2023, the company has finished installing a thermal battery to replace natural gas usage for the Belgium manufacturing plant of Avery Dennison.