---
title: "BIOSPHERE EXPEDITIONS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/b3a7f67d-c33e-540b-890d-3289b093bbd0
json: https://whiteintel.dev/api/public/dossier/b3a7f67d-c33e-540b-890d-3289b093bbd0
identifier: oo:GB-COH-03906154
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# BIOSPHERE EXPEDITIONS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-03906154`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/b3a7f67d-c33e-540b-890d-3289b093bbd0  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/b3a7f67d-c33e-540b-890d-3289b093bbd0  

## Ownership & control

### Owners / controllers

- **Dr Matthias Ludwig Alfons Hammer** (beneficial owner) — 75% — https://whiteintel.dev/entity/bdefc384-6146-5cc1-9635-c6ae8fb4ce6b
- **Dr Matthias Ludwig Alfons Hammer** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/a299f0a8-a892-44e6-81d4-702ddf20161c

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

A **2-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:** `03906154`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2000-01-13
- **Registered office:** The Henderson Centre, Ivy Road, Norwich, Norfolk, NR5 8BF
- **SIC:** 88990, 99000

### Officers

- HAMMER, Matthias Ludwig, Dr — director · German · appointed 2000-01-13
- GILL, Katherine Anne — secretary · British · appointed 2000-01-13 · resigned 2015-03-19
- TEMPLE SECRETARIES LIMITED — corporate nominee secretary · appointed 2000-01-13 · resigned 2000-01-13
- GILL, Katherine Anne — director · British · appointed 2000-01-13 · resigned 2015-03-19
- KLATT, Kristine, Dr — director · German · appointed 2020-01-02 · resigned 2024-12-01
- COMPANY DIRECTORS LIMITED — corporate nominee director · appointed 2000-01-13 · resigned 2000-01-13

### Beneficial owners (Persons with Significant Control)

- Dr Matthias Ludwig Alfons Hammer — 50–75% shares · individual PSC — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03906154
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03906154

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **BIOSPHERE EXPEDITIONS LIMITED**. Human view: https://whiteintel.dev/entity/b3a7f67d-c33e-540b-890d-3289b093bbd0 · Structured JSON: https://whiteintel.dev/api/public/dossier/b3a7f67d-c33e-540b-890d-3289b093bbd0._

_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"._