---
title: "SUSTEN LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3dc55090-e7a0-5719-af49-371013fe7aeb
json: https://whiteintel.dev/api/public/dossier/3dc55090-e7a0-5719-af49-371013fe7aeb
identifier: oo:GB-COH-13511951
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SUSTEN LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-13511951`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3dc55090-e7a0-5719-af49-371013fe7aeb  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3dc55090-e7a0-5719-af49-371013fe7aeb  

## Ownership & control

### Owners / controllers

- **Mr John Edward Marrow** (beneficial owner) — https://whiteintel.dev/entity/982e03af-b1ac-501d-9d00-a127e696b561
- **Mr David Alexander Herne** (beneficial owner) — 100% — https://whiteintel.dev/entity/34f7316a-3ce4-5e41-9e60-27938f014357
- **Mr David Alexander Herne** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/13892bed-c754-471a-b4b5-5f5cb096234b
- **Mr John Edward Marrow** (beneficial owner) — https://whiteintel.dev/entity/95f09559-7ad3-49b2-9855-ff2f5ad5cf57

### Holdings / subsidiaries

- **SUSTEN ENERGY TECH INVESTMENTS GP LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f4c1c828-2fef-4e75-a48c-768e16da11ec

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

1. **Mr John Edward Marrow** — beneficial owner → *SUSTEN LIMITED*
1. **Mr David Alexander Herne** — beneficial owner 100% → *SUSTEN LIMITED*
1. **Mr David Alexander Herne** — beneficial owner 87.5% → *SUSTEN LIMITED*
1. **Mr John Edward Marrow** — beneficial owner → *SUSTEN LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `13511951`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2021-07-15
- **Registered office:** Herston Cross House, 230 High Street, Swanage, Dorset, BH19 2PQ, United Kingdom
- **SIC:** 64303

### Officers

- HERNE, David Alexander — director · British · appointed 2025-01-13
- MARROW, John Edward — director · British · appointed 2021-07-15

### Beneficial owners (Persons with Significant Control)

- Mr John Edward Marrow — significant influence or control · individual PSC · United Kingdom — since 2021-09-01
- Mr David Alexander Herne — 75–100% shares · individual PSC · United Kingdom — since 2021-07-15

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/13511951

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SUSTEN LIMITED**. Human view: https://whiteintel.dev/entity/3dc55090-e7a0-5719-af49-371013fe7aeb · Structured JSON: https://whiteintel.dev/api/public/dossier/3dc55090-e7a0-5719-af49-371013fe7aeb._

_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"._