NATIONAL GRID PLC
Close on Oct 19, 2026
About National Grid
Natural Gas Transmission, SIC 4922
National Grid operates energy infrastructure networks delivering electricity and gas. Its principal activities include electricity transmission and distribution, energy system operation, power generation, and liquefied natural gas storage and regasification. The company organizes its business across several core reporting segments: UK Electricity Transmission, UK Electricity Distribution, New England, New York, and National Grid Ventures, alongside system operator and legacy gas transmission activities. Through these segments, the enterprise serves residential consumers, commercial and industrial enterprises, power generators, and interconnected utility networks requiring grid access, distribution capacity, and transmission services.
The business conducts its primary utility and transmission operations across the United Kingdom and the United States, maintaining regional networks within the New York and New England areas alongside its British electricity infrastructure. Corporate governance and financial domicile are centered in the United Kingdom, where the entity operates under domestic regulatory licenses while coordinating broader interstate and regional asset divisions.
Summary of the business section of National Grid's latest annual report, written by StockData.
Company profile
Company
- Legal name
- NATIONAL GRID PLC
- Founded
- 1990
- Headquarters
- London, X0
- Address
- 1-3 Strand WC2N 5EH
- Phone
- (44) 207 004 3220
- Website
- nationalgrid.com
- Employees
- 33,017, Mar 31, 2026
- Industry
- Natural Gas Transmission
- Fiscal year ends
- March 31
- Auditor
- Deloitte LLP, London, United Kingdom
Stock & identifiers
- Ticker
- NGG
- Other tickers
- NEWEN, NGGTF, NMKBP, NMKCP, NMPWP
- Exchange
- NYSE
- IPO date
- Aug 10, 2005
- Shares outstanding
- 5.20B, Mar 31, 2026
- Filer category
- Large accelerated filer
- SEC CIK
- 1004315
- CUSIP
- 636274409
- ISIN
- US6362744095
- LEI
- 8R95QZMKZLJX5Q2XR704
- EIN
- 98-0367158
Executives and directors
Officers and directors who filed ownership reports (Forms 3, 4, 5) in the last two years
No recent ownership filings by officers or directors
National Grid's leadership is listed in its proxy statement (Form DEF 14A).
Employees
Headcount reported in annual reports
“Our 33,017 colleagues across the UK and US are central to delivering the grid of the future.”
Corporate history
Events identified from SEC filings
| Date | Event | Details |
|---|---|---|
| Jun 12, 2026 | Listing | Registration of securities on an exchange (Form 8-A) |
| Jan 17, 2024 | Listing | Registration of securities on an exchange (Form 8-A) |
| Jan 3, 2024 | Deregistration | Termination of SEC registration (Form 15) |
| Dec 21, 2023 | Delisting | Notice of delisting from exchange (Form 25) |
| Jun 15, 2023 | Listing | Registration of securities on an exchange (Form 8-A) |
| Mar 25, 2015 | Delisting | Notice of delisting from exchange (Form 25) |
| Jul 21, 2006 | Listing | Registration of securities on an exchange (Form 8-A) |
| Jul 28, 2005 | Name change | Name changed from NATIONAL GRID TRANSCO PLC to NATIONAL GRID PLC |
| Nov 1, 2002 | Name change | Name changed from NATIONAL GRID GROUP PLC to NATIONAL GRID TRANSCO PLC |
| Mar 22, 2002 | Tender offer | Third-party tender offer for the company's shares |
| Oct 4, 2000 | Merger | Registration of securities for a merger or exchange offer (S-4) |