Centrica 

Centrica plc operates as an integrated energy company in the United Kingdom, Ireland, Scandinavia, North America, and internationally. The company operates through British Gas Services & Solutions, British Gas Energy, Centrica Business Solutions, Bord Gáis Energy, Centrica Energy, and Upstream segments. It supplies gas and electricity to residential, commercial, industrial customers, and small businesses, as well as offers energy-related services; and generates power from nuclear assets. The company also provides installation, repair, and maintenance services for central heating, ventilation, and air conditioning systems, as well as offers breakdown services. In addition, it is involved in the procurement, trading, and optimization of energy; procurement and sale of LNG; development and operation of large-scale power assets; building of solar farm and connecting to grid; and supply of energy efficiency solutions and technologies. Further, the company produces and processes gas and oil; constructs, owns, and exploits infrastructure; offers central heating, boiler and controls, plumbing and drains, and electrical appliance insurance covers; and engages in the social enterprise investment fund activities. Additionally, it provides metering assets and services, vehicle leasing, and energy management products and services; constructs battery storage and gas peakers; and operates a gas storage and franchise network. The company was formerly known as Yieldtop plc and changed its name to Centrica plc in December 1996. Centrica plc was founded in 1812 and is based in Windsor, the United Kingdom.