Bristol Energy was a municipally owned energy supply company, founded in September 2015 by Bristol City Council. Its business accounts were sold to Yü Energy in August 2020, and in the following month its residential accounts were sold to Together Energy.

Solid Energy was the largest coal mining company in New Zealand and is a state owned enterprise of the New Zealand Government. The company was formed from the former government department State Coal Mines.

Great British Energy (GB Energy, GBE) is a publicly owned energy investment company in the United Kingdom. It was established by the Great British Energy Act 2025, which received royal assent on 15 May 2025, and is sponsored by the Department for Energy Security and Net Zero.

Enel North America is an American company headquartered in Andover, MA, United States. One of the renewable energy operators in North America, it was formed as a subsidiary of the global utility Enel S.p.A. in 2000.

Altenergy Power System better known as APsystems (formerly APS) is a global technology company that operates in the renewable energy space. APsystems is a provider of multi-platform module-level power electronics (MLPE) solutions for the solar photovoltaic (PV) industry.

Yukon Energy Corporation (YEC; French: Société d'énergie du Yukon) is a Crown corporation that is the primary producer of electricity in the Canadian territory of Yukon. It also distributes electricity to a small number of locations not served by the privately owned ATCO Electric Yukon.

Hager SE is a manufacturer of electrical installations specialized in electrical installations for residential, commercial and industrial buildings, based in Blieskastel, Germany. The company has been family-run and owned ever since its foundation in Ensheim (Saarland) in 1955 by family Hager.

TotalEnergies Gas & Power is a business energy provider in the UK. A wholly owned subsidiary of French Oil Supermajor TotalEnergies.

Wind power is the fastest-growing renewable energy technology in Scotland, with 17.7 gigawatts (GW) of installed wind power capacity by Q2 2025. This included 10.4 GW from onshore wind in Scotland and 4.3 GW of offshore wind generators.

Engie Energy International, formerly International Power, is a multinational electricity generation company headquartered in Newcastle upon Tyne, and a wholly owned subsidiary of the French company Engie (formerly GDF Suez). The company was formed as International Power in 2000 by the demerger of National Power.