---
title: "CALIZAR LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/0d655f69-eac0-5571-b004-a370c562c366
json: https://whiteintel.dev/api/public/dossier/0d655f69-eac0-5571-b004-a370c562c366
identifier: oo:GB-COH-12611636
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# CALIZAR LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12611636`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/0d655f69-eac0-5571-b004-a370c562c366  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/0d655f69-eac0-5571-b004-a370c562c366  

## Cross-source identity

The same real-world entity, resolved across sources:

- **Calizar Limited** — OpenOwnership · `oo:GB-COH-14074629` — https://whiteintel.dev/entity/b3b5480c-3637-5c8e-ae62-5dd4df1a3dc4
- **Calizar Limited** — source · `psc:duYp_WcCIBQVsf0OS8wU40xgVZM` — https://whiteintel.dev/entity/28ca54b0-0039-43c6-8ecd-d492966a58d1
- **Calizar Limited** — source · `psc:Brh5_iMsKr9Po5o_zqyrmEA2wRE` — https://whiteintel.dev/entity/31dd37e1-74ca-498a-b83f-52d3bf4c7bcd

## Ownership & control

### Owners / controllers

- **Simon James Blakebrough** (beneficial owner) — 100% — https://whiteintel.dev/entity/da8c4efe-ac63-585e-a86e-2d35476cde87
- **HELMORE MANAGEMENT LTD** (beneficial owner) — 50% — https://whiteintel.dev/entity/16a9a331-50b5-5d79-a39f-aa2fc81cb12b
- **Mr Mark Lenherr** (beneficial owner) — 50% — https://whiteintel.dev/entity/e9f1b534-5f25-5ee5-b930-5fa186deb3d8
- **HELMORE MANAGEMENT LTD** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/16a9a331-50b5-5d79-a39f-aa2fc81cb12b
- **Simon James Blakebrough** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/0f15940a-83f6-4d20-ba57-43b17c64549e
- **Mr Mark Lenherr** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/a3f8a103-8c85-449b-a0e6-2708157aeaa0
- **Calizar Holdings Limited** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/095731a8-a39e-40e9-954b-d4e4f744ee0b
- **Demetrius Services Limited** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/fa19e888-ecbe-4639-bfb7-d485b11783b8

### Holdings / subsidiaries

- **Cleabarrow Investments Limited** (beneficial owner) — 75% — https://whiteintel.dev/entity/d3fe9ed2-0a79-5adc-bb75-a6feef4d37ae
- **MEDIVOX LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/16473a04-e185-4ad8-8f7e-6ca757e18380
- **Cleabarrow Investments Limited** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/d3fe9ed2-0a79-5adc-bb75-a6feef4d37ae

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

A **30-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:** `12611636`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2020-05-19
- **Registered office:** Harewood House, Peter Tavy, Tavistock, PL19 9NN, England
- **SIC:** 41100, 64304

### Officers

- LENHERR, Mark William — director · British · appointed 2021-01-26
- BLAKEBROUGH, Simon James — director · British · appointed 2020-05-19 · resigned 2026-07-23

### Beneficial owners (Persons with Significant Control)

- [Helmore Management Ltd](https://whiteintel.dev/entity/16a9a331-50b5-5d79-a39f-aa2fc81cb12b) — 25–50% shares · corporate PSC · England — since 2022-06-16
- Mr John Derek Britton — 25–50% shares · individual PSC · Gibraltar — ceased 2024-05-04
- [Calizar Holdings Limited](https://whiteintel.dev/entity/789a36a3-cdd4-50b0-ac8d-5a923564091b) — 25–50% shares · corporate PSC · Gibraltar — ceased 2022-06-16
- [Demetrius Services Limited](https://whiteintel.dev/entity/fa19e888-ecbe-4639-bfb7-d485b11783b8) — 25–50% shares · corporate PSC · Virgin Islands, British — ceased 2022-02-22
- Mr Mark Lenherr — 25–50% shares · individual PSC · United Kingdom — ceased 2021-11-01
- Simon James Blakebrough — 75–100% shares · individual PSC · United Kingdom — ceased 2021-11-01

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12611636
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12611636

## 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 **CALIZAR LIMITED** — https://whiteintel.dev/entity/0d655f69-eac0-5571-b004-a370c562c366 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **CALIZAR LIMITED**. Human view: https://whiteintel.dev/entity/0d655f69-eac0-5571-b004-a370c562c366 · Structured JSON: https://whiteintel.dev/api/public/dossier/0d655f69-eac0-5571-b004-a370c562c366._

_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"._