---
title: "NATIONAL GRID OFFSHORE LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8a118916-d507-5f09-aa99-b08ffe2bf71d
json: https://whiteintel.dev/api/public/dossier/8a118916-d507-5f09-aa99-b08ffe2bf71d
identifier: oo:GB-COH-10841592
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# NATIONAL GRID OFFSHORE LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-10841592`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8a118916-d507-5f09-aa99-b08ffe2bf71d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8a118916-d507-5f09-aa99-b08ffe2bf71d  

## Ownership & control

### Owners / controllers

- **H3 Tradeco Limited** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/caf542d8-4d71-4625-a780-d83bd40e98f3

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

A **1-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:** `10841592`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2017-06-29
- **Registered office:** 1-3 Strand, London, WC2N 5EH
- **SIC:** 35140

### Officers

- HOLLIS, Katie Suzanne — secretary · appointed 2023-11-06
- HILL, Harriet — director · British · appointed 2022-11-18
- BARNES, Megan — secretary · appointed 2018-11-30 · resigned 2022-11-18
- HAGAN, Lawrence — secretary · appointed 2022-11-18 · resigned 2023-10-26
- MORGAN, Alice — secretary · appointed 2017-06-29 · resigned 2018-11-30
- BARNES, Megan — director · British · appointed 2020-01-26 · resigned 2022-11-18
- GRAVES, Ian Robert — director · British · appointed 2017-07-12 · resigned 2017-11-30
- MCINTOSH, Andrew John — director · British · appointed 2017-06-29 · resigned 2019-10-31
- PATTON, Rachel Anne — director · British · appointed 2017-06-29 · resigned 2020-01-26
- RICHARDSON, Zachary John — director · British · appointed 2017-06-29 · resigned 2020-01-26

### Beneficial owners (Persons with Significant Control)

- National Grid Interconnector Holdings Limited — 75–100% shares · corporate PSC · United Kingdom — since 2017-06-29

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/10841592
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/10841592

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **NATIONAL GRID OFFSHORE LIMITED**. Human view: https://whiteintel.dev/entity/8a118916-d507-5f09-aa99-b08ffe2bf71d · Structured JSON: https://whiteintel.dev/api/public/dossier/8a118916-d507-5f09-aa99-b08ffe2bf71d._

_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"._