NATIONAL GRID PLC

National Grid operates as a vertically integrated energy transmission and distribution company, providing electricity and natural gas services across the United Kingdom and northeastern United States. The company owns and manages critical infrastructure networks that transport electricity from generation sources to end users and distribute gas through regional pipelines. Its primary revenue streams derive from regulated utility operations, where tariffs are set by regulatory authorities based on capital investments and operating costs.

The company's operations are organized across six principal segments. In the UK, National Grid maintains separate electricity transmission and distribution businesses covering England, Wales, and regions including the Midlands and Southwest. Its North American operations span New England and New York, where it provides integrated electricity and gas transmission and distribution services to approximately 20 million people. National Grid Ventures operates electricity interconnectors linking the UK to continental Europe and manages an liquefied natural gas import terminal at the Isle of Grain. A smaller segment conducts property leasing and insurance activities in the United Kingdom.

With approximately 31,650 full-time employees and assets spanning two major developed markets, National Grid ranks among the larger regulated utilities globally. The company was incorporated in 1990 through the privatization of England and Wales's state-owned electricity and gas operations, and expanded into North America through subsequent acquisitions of regional utilities.