NATIONAL GRID PLC
National Grid plc is a British multinational electricity and gas utility company headquartered in London, England. Its principal activities are in Great Britain, where it owns and operates electricity and natural gas transmission networks, and in the Northeastern United States, where as well as operating transmission networks, the company produces and supplies electricity and gas, providing both to customers in New York and Massachusetts.
Basic company information
Each field links to its source. Financial figures retain their reporting periods; background references are identified in the source list.
- Ticker / security symbols
- NGG, NGGTF, NEWEN, NMKBP, NMKCP, NMPWP [1]
- Listing exchanges
- NYSE, OTC [1]
- SEC industry
- Natural Gas Transmission [1]
- Business sectors
- electric power industry [2]
- Company / filing name
- NATIONAL GRID PLC [1]
- Headquarters location
- London [2]
- Business address
- 1-3 STRAND, LONDON, X0, WC2N 5EH [1]
- Founded
- 1990 [2]
- Legal form
- public limited company [2]
- Leadership in background record
- John Pettigrew [2]
- Official website
- nationalgrid.com ↗ [2]
- Fiscal year end
- March 31 (SEC record) [1]
- ISIN (reported securities)
- GB00B08SNH34; GB00BDR05C01 [2]
- CIK
- 0001004315 [1]
- SIC code
- 4922 [1]
- Country in background record
- United Kingdom [2]
Company positioning and business
National Grid plc is a British multinational electricity and gas utility company headquartered in London, England. Its principal activities are in Great Britain, where it owns and operates electricity and natural gas transmission networks, and in the Northeastern United States, where as well as operating transmission networks, the company produces and supplies electricity and gas, providing both to customers in New York and Massachusetts. [3]
National Grid plc is one of the largest investor-owned utility companies in the world; it has a primary listing on the London Stock Exchange where it is a constituent of the FTSE 100 Index, and a secondary listing in the form of its American depositary receipts on the New York Stock Exchange. [3]
Background text: Wikipedia contributors, National Grid plc. Selected introductory paragraphs, licensed under CC BY-SA 4.0. Official filing data is cited separately.
Management and corporate governance
The Wikidata background record identifies John Pettigrew in the chief-executive role. This background entry is not an official confirmation of the current board or executive roster. [2]
Financial year, securities and disclosures
The SEC submissions record gives NATIONAL GRID PLC a fiscal year end of 0331 (MMDD). Individual filings below identify their own reporting period; the filing date is the publication event, not the financial year end. [1]
Listed securities: NGG (NYSE), NGGTF (OTC), NEWEN (OTC), NMKBP (OTC), NMKCP (OTC), NMPWP (OTC). Multiple symbols may represent different share classes or securities of the same registrant. [4]
History and key events
Financial results and regulatory disclosures
Annual, quarterly and current reports from the collected SEC record. Insider Forms 4 and 144 are excluded. This is a selected list, not a live filing feed.
Source-verified relationships
Companies in the same industry
Comparison candidates share the SEC SIC classification 4922. This does not imply ownership, partnership or trading relationships.
Related entities and concepts
Frequently asked questions
When was NATIONAL GRID PLC founded?
Founded: 1990. The linked source provides the background record. [2]
Where is the headquarters of NATIONAL GRID PLC?
Headquarters location: London. The linked source provides the background record. [2]
Which business sectors are recorded for NATIONAL GRID PLC?
Business sectors: electric power industry. The linked source provides the background record. [2]
NATIONAL GRID PLC relationship map
Select a node to inspect its relationship and source.
3 verified direct relationships. Industry peers are not relationship edges.
Sources and review dates
- SEC — NATIONAL GRID PLC filing identity and securities ↗
- Wikidata — company background record (CC0) ↗
- Wikipedia contributors — National Grid plc (CC BY-SA 4.0) ↗
- SEC securities directory ↗
- Company chronology / filing ↗
Reviewed 23 October 2026. Financial periods and historical event dates are shown separately. Figures reflect their stated source dates; this page is not a live quote or investment recommendation.