Every brand National Grid owns
4 brands, sorted alphabetically. Brands with their own page link through; others are listed here with their source. See the company profile and ownership tree.
| Brand | Category | Origin | Held via | Stake | Since | Confidence | Source |
|---|---|---|---|---|---|---|---|
| National Grid Electricity Distribution | Grids & transmission | 🇬🇧 United Kingdom | Direct | 100% | — | reported | National Grid plc, Oct 2026 |
| National Grid Electricity Transmission | Grids & transmission | 🇬🇧 United Kingdom | Direct | 100% | — | reported | National Grid plc, Oct 2026 |
| National Grid Ventures | Grids & transmission | 🇬🇧 United Kingdom | Direct | 100% | — | reported | National Grid plc, Oct 2026 |
| Niagara Mohawk | Electric utilities | 🇺🇸 United States | Direct | 100% | — | reported | National Grid plc, Oct 2026 |