---
title: "HARTREE INTERNATIONAL HOLDINGS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/a4723eb2-d97f-5312-bbff-5df6c196676f
json: https://whiteintel.dev/api/public/dossier/a4723eb2-d97f-5312-bbff-5df6c196676f
identifier: oo:GB-COH-12229505
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# HARTREE INTERNATIONAL HOLDINGS LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-12229505`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/a4723eb2-d97f-5312-bbff-5df6c196676f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/a4723eb2-d97f-5312-bbff-5df6c196676f  

## Ownership & control

### Holdings / subsidiaries

- **HARTREE MI UK LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/5681b3e9-7b43-5c5f-a0ac-740368d60d5f
- **HARTREE MI UK LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/5681b3e9-7b43-5c5f-a0ac-740368d60d5f

## Company profile (live · UK Companies House)

- **Company number:** `12229505`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-09-26
- **Registered office:** Level 8 123 Buckingham Palace Road, London, SW1W 9SH, England
- **SIC:** 64209

### Officers

- HENDEL, Stephen Michael — director · American · appointed 2019-09-26
- KITCHENER, Ellis Guy — director · British · appointed 2025-07-10
- SEMLITZ, Stephen Michael — director · American · appointed 2025-11-24
- BREAMS SECRETARIES LIMITED — corporate secretary · appointed 2019-09-26 · resigned 2021-06-30
- O'NEILL, Jonathan Hugh — director · British · appointed 2019-09-26 · resigned 2025-11-14
- VOELKER, Heiko — director · German · appointed 2019-09-26 · resigned 2025-07-04

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12229505

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **HARTREE INTERNATIONAL HOLDINGS LIMITED**. Human view: https://whiteintel.dev/entity/a4723eb2-d97f-5312-bbff-5df6c196676f · Structured JSON: https://whiteintel.dev/api/public/dossier/a4723eb2-d97f-5312-bbff-5df6c196676f._

_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"._