---
title: "GAMMA BIOSCIENCES HOLDCO LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e2d84f65-bcdf-55ad-97c0-09581cb8aba0
json: https://whiteintel.dev/api/public/dossier/e2d84f65-bcdf-55ad-97c0-09581cb8aba0
identifier: oo:GB-COH-12558722
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GAMMA BIOSCIENCES HOLDCO LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12558722`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e2d84f65-bcdf-55ad-97c0-09581cb8aba0  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e2d84f65-bcdf-55ad-97c0-09581cb8aba0  

## Ownership & control

### Owners / controllers

- **GAMMA BIOSCIENCES BIDCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/57382411-b6a1-5fb5-b43a-5e7e5ae65da6
- **GAMMA BIOSCIENCES BIDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/57382411-b6a1-5fb5-b43a-5e7e5ae65da6

### Holdings / subsidiaries

- **GAMMA BIOSCIENCES NEWCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/dd1b1816-139f-5514-9774-e9ff19625bab
- **ASTREA GROUP HOLDINGS COMPANY LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/f2ea2b6b-e258-5c2f-a63c-0f2b17c6da1f
- **GAMMA BIOSCIENCES NEWCO 2 LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/2e99ae82-6faf-514a-9cc1-628d8d148e27
- **GAMMA BIOSCIENCES NEWCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/dd1b1816-139f-5514-9774-e9ff19625bab
- **ASTREA GROUP HOLDINGS COMPANY LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f2ea2b6b-e258-5c2f-a63c-0f2b17c6da1f
- **GAMMA BIOSCIENCES NEWCO 2 LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/2e99ae82-6faf-514a-9cc1-628d8d148e27

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

A **3-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:** `12558722`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-04-16
- **Registered office:** Duo, Level 6, 280 Bishopsgate, London, EC2M 4RB, United Kingdom
- **SIC:** 64209

### Officers

- GUNNISON, Matthew Tower — director · American · appointed 2020-04-16
- SIMPSON, Eric — director · American · appointed 2023-06-22
- BURTON, Steven James — director · British · appointed 2020-04-16 · resigned 2020-06-23
- JOSEPH-ERAMEH, Anogie — director · British · appointed 2020-07-07 · resigned 2023-06-21
- RUWALD, Bjorn Clauber — director · Danish · appointed 2020-04-16 · resigned 2020-07-07
- SATHIYANANDARAJAH, Kugan, Mr. — director · British · appointed 2020-04-16 · resigned 2023-06-21

### Beneficial owners (Persons with Significant Control)

- [Gamma Biosciences Bidco Limited](https://whiteintel.dev/entity/57382411-b6a1-5fb5-b43a-5e7e5ae65da6) — 75–100% shares · corporate PSC · England — since 2020-04-16

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12558722
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12558722

## 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 **GAMMA BIOSCIENCES HOLDCO LIMITED** — https://whiteintel.dev/entity/e2d84f65-bcdf-55ad-97c0-09581cb8aba0 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GAMMA BIOSCIENCES HOLDCO LIMITED**. Human view: https://whiteintel.dev/entity/e2d84f65-bcdf-55ad-97c0-09581cb8aba0 · Structured JSON: https://whiteintel.dev/api/public/dossier/e2d84f65-bcdf-55ad-97c0-09581cb8aba0._

_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"._