---
title: "TETHRA ENERGY LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/baa648fb-4fa6-5c92-aba3-60735ee6fdf5
json: https://whiteintel.dev/api/public/dossier/baa648fb-4fa6-5c92-aba3-60735ee6fdf5
identifier: oo:GB-COH-08591709
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# TETHRA ENERGY LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-08591709`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/baa648fb-4fa6-5c92-aba3-60735ee6fdf5  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/baa648fb-4fa6-5c92-aba3-60735ee6fdf5  

## Ownership & control

### Owners / controllers

- **Ms Helen Mary Edwards** (beneficial owner) — 100% — https://whiteintel.dev/entity/e568002a-9d20-52c4-b775-aeda56ac8b27
- **Mr Richard Harper** (beneficial owner) — 50% — https://whiteintel.dev/entity/89e9c731-e528-5bfc-b78e-188ef7af8056
- **Mr Richard Harper** (beneficial owner) — 50% — https://whiteintel.dev/entity/8003e4e7-a018-5a35-ac1b-f6f227bdd6ca
- **Mr Richard Harper** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/db98bc03-ed80-4755-9463-a7fb83da7a4f
- **Mr Richard Harper** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/479da321-a181-47e1-9006-35c8ae6350be
- **Ms Helen Mary Edwards** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/0c2b5b5c-9da2-4026-9298-76e0c950b16b

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

A **6-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:** `08591709`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2013-07-01
- **Registered office:** The Old Grammar School, Hallgate, Hexham, NE46 1XD, England
- **SIC:** 74909

### Officers

- EDWARDS, Helen Mary — secretary · appointed 2013-07-01
- EDWARDS, Helen Mary — director · Canadian · appointed 2013-07-01
- WHITAKER, Michael John, Professor — director · British · appointed 2013-07-01
- HARPER, Jean Alison — director · British · appointed 2013-07-01 · resigned 2021-04-01
- HARPER, Richard — director · British · appointed 2013-07-01 · resigned 2021-04-01

### Beneficial owners (Persons with Significant Control)

- Ms Helen Mary Edwards — 75–100% shares · individual PSC · England — since 2016-04-06
- Mr Richard Harper — 25–50% shares · individual PSC · England — ceased 2021-04-01
- Mr Richard Harper — 25–50% shares · individual PSC · England — ceased 2020-07-14

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/08591709
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/08591709

## 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 **TETHRA ENERGY LIMITED** — https://whiteintel.dev/entity/baa648fb-4fa6-5c92-aba3-60735ee6fdf5 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **TETHRA ENERGY LIMITED**. Human view: https://whiteintel.dev/entity/baa648fb-4fa6-5c92-aba3-60735ee6fdf5 · Structured JSON: https://whiteintel.dev/api/public/dossier/baa648fb-4fa6-5c92-aba3-60735ee6fdf5._

_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"._