---
title: "DOLPHYN HYDROGEN - CELTIC SEA SPV LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/d9ae8cd8-9be5-5df2-ab5d-67db2abadea3
json: https://whiteintel.dev/api/public/dossier/d9ae8cd8-9be5-5df2-ab5d-67db2abadea3
identifier: oo:GB-COH-13980236
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# DOLPHYN HYDROGEN - CELTIC SEA SPV LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-13980236`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/d9ae8cd8-9be5-5df2-ab5d-67db2abadea3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/d9ae8cd8-9be5-5df2-ab5d-67db2abadea3  

## Ownership & control

### Owners / controllers

- **DOLPHYN HYDROGEN LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/df8cc51b-300e-5cda-a806-e36d8dab365d

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

1. **DOLPHYN HYDROGEN LIMITED** — beneficial owner 100% → *DOLPHYN HYDROGEN - CELTIC SEA SPV LIMITED*
2. **ERM-EUROPE,LTD** — beneficial owner 100% → *DOLPHYN HYDROGEN LIMITED*
3. **ERM LIMITED** — beneficial owner 100% → *ERM-EUROPE,LTD*
4. **EAGLE 4 LIMITED** — beneficial owner 100% → *ERM LIMITED*
5. **EMERALD 2 LIMITED** — beneficial owner 100% → *EAGLE 4 LIMITED*
5. **EMERALD 2 LIMITED** — beneficial owner 87.5% → *EAGLE 4 LIMITED*
5. **Emerald 3 Limited** — beneficial owner 87.5% → *EAGLE 4 LIMITED*
6. **EX-EMILION LIMITED** — beneficial owner 100% → *EMERALD 2 LIMITED*
6. **NATURE BIDCO LIMITED** — beneficial owner 100% → *EMERALD 2 LIMITED*
6. **NATURE BIDCO LIMITED** — beneficial owner 87.5% → *EMERALD 2 LIMITED*
6. **EX-EMILION LIMITED** — beneficial owner 87.5% → *EMERALD 2 LIMITED*
6. **Erm Worldwide Limited** — beneficial owner 87.5% → *EMERALD 2 LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `13980236`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2022-03-16
- **Registered office:** 2nd Floor, Exchequer Court, 33 St Mary Axe, London, EC3A 8AA, United Kingdom
- **SIC:** 35210, 35230, 43999, 71121

### Officers

- MULLANY, Angela Jane Elisabeth — secretary · appointed 2023-05-31
- ISAAC, Carl — director · British · appointed 2025-08-12
- KEELING, Stuart Michael — director · British · appointed 2025-12-01
- BURROWS, Roy Antony — secretary · appointed 2022-03-16 · resigned 2023-05-31
- CROWE, Simon Paul — director · British · appointed 2022-03-16 · resigned 2022-10-03
- MCARTHUR, David James — director · English · appointed 2022-03-16 · resigned 2025-12-01
- STRAWN, Timothy Mason — director · American · appointed 2022-03-16 · resigned 2025-08-12

### Beneficial owners (Persons with Significant Control)

- [Dolphyn Hydrogen Limited](https://whiteintel.dev/entity/df8cc51b-300e-5cda-a806-e36d8dab365d) — 75–100% shares · corporate PSC · England — since 2022-03-16

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/13980236

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **DOLPHYN HYDROGEN - CELTIC SEA SPV LIMITED**. Human view: https://whiteintel.dev/entity/d9ae8cd8-9be5-5df2-ab5d-67db2abadea3 · Structured JSON: https://whiteintel.dev/api/public/dossier/d9ae8cd8-9be5-5df2-ab5d-67db2abadea3._

_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"._