Is National Grid PLC an American company?
No — National Grid PLC is not an American company.
National Grid PLC is incorporated in the United Kingdom. It maintains US operations and its shares trade on NYSE — which is why it is often mistaken for a US company.
The evidence
- Legal name
- NATIONAL GRID PLC
- Incorporated in
- the United Kingdom
- Registered office
- London, the United Kingdom
- Headquarters
- London, the United Kingdom
- Ultimate owner
- None reported (independent)
- Stock listing
- NYSE: NGG on NYSE
- LEI
- 8R95QZMKZLJX5Q2XR704
- Founded
- 1990
Source: GLEIF, the global Legal Entity Identifier registry · checked Aug 8, 2026. A US headquarters or stock listing does not always mean US incorporation — this page reports what the legal-entity registry actually records.
National Grid PLC: origin questions
Is National Grid PLC an American company?
No — National Grid PLC is not an American company. National Grid PLC is incorporated in the United Kingdom. It maintains US operations and its shares trade on NYSE — which is why it is often mistaken for a US company.
Where is National Grid PLC incorporated?
National Grid PLC is legally incorporated in the United Kingdom, according to its GLEIF legal-entity record.
Is National Grid PLC traded on a US stock exchange?
Yes — National Grid PLC trades under the ticker NGG on the NYSE. A US stock listing does not by itself make a company American — incorporation and ownership are what this page reports.
See the full National Grid PLC company profile — financials, stock data and trust credentials — or browse the directory of American companies.