---
title: "NATIONAL ENERGY SYSTEM OPERATOR LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/97452c8b-b759-5344-893d-0195ce571cf9
json: https://whiteintel.dev/api/public/dossier/97452c8b-b759-5344-893d-0195ce571cf9
identifier: oo:GB-COH-11014226
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# NATIONAL ENERGY SYSTEM OPERATOR LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-11014226`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/97452c8b-b759-5344-893d-0195ce571cf9  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/97452c8b-b759-5344-893d-0195ce571cf9  

## Cross-source identity

The same real-world entity, resolved across sources:

- **NATIONAL GRID ELECTRICITY SYSTEM OPERATOR LIMITED** — GLEIF · `lei:549300Y4N7FKSD848P40` — https://whiteintel.dev/entity/2467fc75-8df3-5ec7-913e-40d0a592f837

## Ownership & control

### Owners / controllers

- **The Secretary Of State For Energy Security And Net Zero** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/adbaca4d-386a-4c25-a183-b953566a4161
- **National Grid Holdings One Plc** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/4219474c-7b5c-4239-a219-7337def5dd97

### Holdings / subsidiaries

- **ELEXON LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/05a0a545-2d59-5773-a7b7-6f36838c847d

### UBO chain (walk to the ultimate owner)

A **8-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `11014226`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2017-10-16
- **Registered office:** St Catherine's Lodge Bearwood Road, Sindlesham, Wokingham, RG41 5BN, England
- **SIC:** 96090

### Officers

- FAVIER-TILSTON, Claire — secretary · appointed 2021-05-11
- MORRISSEY, Zoe Elise — secretary · appointed 2019-05-23
- CRACKETT, John — director · British · appointed 2025-07-01
- DUFFY, Clare Siobhan — director · Irish · appointed 2024-10-01
- FITZGERALD, Emma, Dr — director · British · appointed 2025-10-01
- GOLBY, Paul, Dr — director · British · appointed 2024-10-01
- LEGGE, Kayte Anne Eve — director · British · appointed 2019-04-01
- LINWOOD, John Frederick — director · British · appointed 2020-06-16
- MACKAY, Sheena Mary — director · Scottish · appointed 2026-04-01
- NIXON, Hannah — director · British · appointed 2019-04-01
- PATE, Charles — director · British · appointed 2023-09-11
- PLUMMER, Paul Jonathan — director · English · appointed 2019-04-01
- SCOTT, Jayne Patricia — director · British · appointed 2025-02-03
- SLYE, Fintan Charles — director · Irish · appointed 2019-03-01
- ACKON, Chantal Marise — secretary · appointed 2019-04-01 · resigned 2019-10-04
- HAGAN, Lawrence — secretary · appointed 2017-10-16 · resigned 2019-04-01
- BARNES, Megan — director · British · appointed 2018-11-30 · resigned 2019-04-01
- BURNS, Clive — director · British · appointed 2017-10-16 · resigned 2019-04-01
- BURT, Duncan Bryden — director · British · appointed 2019-04-01 · resigned 2020-02-17
- CRAWFORD, Janice Elliott — director · British · appointed 2023-07-17 · resigned 2025-03-31

### Beneficial owners (Persons with Significant Control)

- The Secretary Of State For Energy Security And Net Zero — 75–100% shares · corporate PSC · England — since 2024-10-01
- [National Grid Holdings One Plc](https://whiteintel.dev/entity/4219474c-7b5c-4239-a219-7337def5dd97) — 75–100% shares · corporate PSC · England — ceased 2024-10-01

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11014226
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11014226

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **NATIONAL ENERGY SYSTEM OPERATOR LIMITED** — https://whiteintel.dev/entity/97452c8b-b759-5344-893d-0195ce571cf9 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **NATIONAL ENERGY SYSTEM OPERATOR LIMITED**. Human view: https://whiteintel.dev/entity/97452c8b-b759-5344-893d-0195ce571cf9 · Structured JSON: https://whiteintel.dev/api/public/dossier/97452c8b-b759-5344-893d-0195ce571cf9._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._