With a market capitalization (market cap) of $82.59B — a measure of how much the company is worth — National Grid plc is the 210th most valuable company in Utilities as of August 19, 2026. Shares trade at $82.15, up +1.06% on the day.
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National Grid plc engages in the transmission and distribution of electricity and gas. It operates through UK Electricity Transmission, UK Electricity Distribution, New England, New York, National Grid Ventures, and Other segments. The UK Electricity Transmission segment provides electricity transmission networks in England and Wales. The UK Electricity Distribution segment offers electricity distribution services in east and west Midlands, Southwest of England, and South Wales. The New England segment provides electricity and gas supply and distribution, and high-voltage electricity transmission services in New England. The New York segment offers electricity and gas distribution, and electricity transmission services in New York. The National Grid Ventures segment provides transmission services through electricity interconnectors and LNG importation at the Isle of Grain. The Other segment engages in the leasing and sale of commercial property, as well as insurance activities in the United Kingdom. The company was founded in 1990 and is headquartered in London, the United Kingdom.
Visit websiteAs of August 19, 2026, National Grid plc (NGG) is worth $82.59B — this is its market capitalization, the total value of all its outstanding shares.
National Grid plc’s market cap is $82.59B, which ranks it #210 among the most valuable companies in the Utilities sector tracked on MarketCapLens.
National Grid plc (NGG) shares trade at $82.15, up 1.06% on the day, as of August 19, 2026.
National Grid plc trades at a price-to-earnings (P/E) ratio of 24.5, based on its latest share price and annual earnings per share.
Fundamentals are annual. Figures labeled with their fiscal year.
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