---
title: "GUILDMORE LTD. — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5938ea9b-ccda-5702-ba45-620c3333d28b
json: https://whiteintel.dev/api/public/dossier/5938ea9b-ccda-5702-ba45-620c3333d28b
identifier: oo:GB-COH-03517348
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# GUILDMORE LTD.

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-03517348`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5938ea9b-ccda-5702-ba45-620c3333d28b  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5938ea9b-ccda-5702-ba45-620c3333d28b  

## Ownership & control

### Owners / controllers

- **Mr. Rusen Osman Ertosun** (beneficial owner) — https://whiteintel.dev/entity/9ccfee5a-071a-5b1a-ac99-a6305c8ffdcd
- **Mr. Osman Ertosun** (beneficial owner) — https://whiteintel.dev/entity/337d777f-4cd4-55a1-9e4f-a0f397583d5b
- **Mrs. Zarif Ertosun** (beneficial owner) — https://whiteintel.dev/entity/cca1b5ea-f792-5a87-8477-c8b80fa8fad6
- **Mr. Engin Ertosun** (beneficial owner) — https://whiteintel.dev/entity/24cefa0b-57a6-5d6d-8903-103811cc952c
- **Mr. Rusen Osman Ertosun** (beneficial owner) — https://whiteintel.dev/entity/e64cac1f-2e80-4964-8f28-0e8c26e1ac57
- **Mr. Osman Ertosun** (beneficial owner) — https://whiteintel.dev/entity/c5761f10-4665-45ad-89d9-928d9659e037
- **Mr. Engin Ertosun** (beneficial owner) — https://whiteintel.dev/entity/732a77ec-2c4c-4341-a9b5-764ddddacce8
- **Mrs. Zarif Ertosun** (beneficial owner) — https://whiteintel.dev/entity/439813ff-c112-483b-8972-3dfff9f63309
- **GUILDMORE GROUP LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/850a812e-7c71-53c1-95c8-8c7f955a536e

### Holdings / subsidiaries

- **GUILDMORE FACADES AND CLADDING LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/1996bc16-ef47-538f-ae32-25deb03f0f33
- **GUILDMORE CONSTRUCTION LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/0fcbc2ed-4065-5bf3-9465-88f60447ea73
- **GUILDMORE PLANNED WORKS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/327c3d85-70ff-4f21-a921-9ab7a3531f1b
- **GUILDMORE MIDLANDS & NORTH LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/086dcd89-8921-4cb4-a108-471aabcfe4ae
- **GUILDMORE ROOFING LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/38142aa2-5c06-4558-bd26-9f39d4d53080
- **GUILDMORE CONSTRUCTION LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/0fcbc2ed-4065-5bf3-9465-88f60447ea73
- **GUILDMORE FACADES AND CLADDING LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/1996bc16-ef47-538f-ae32-25deb03f0f33

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

A **14-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:** `03517348`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1998-02-26
- **Registered office:** Kalamu House, 11 Coldbath Square, London, EC1R 5HL, England
- **SIC:** 41201

### Officers

- ALI, Anwar — director · British · appointed 2021-11-08
- ERTOSUN, Engin — director · British · appointed 2001-11-09
- WALSH, John Andrew Patrick — director · British · appointed 2024-03-04
- ERTOSUN, Zarif — secretary · British · appointed 1998-03-30 · resigned 2026-01-21
- A.A. COMPANY SERVICES LIMITED — corporate secretary · appointed 1998-02-26 · resigned 1998-03-30
- BATTY, David Manning, Mr. — director · British · appointed 2015-11-20 · resigned 2019-07-30
- ERTOSUN, Osman — director · British · appointed 1998-03-30 · resigned 2001-11-09
- JELLEY, Stephen Michael Lester — director · British · appointed 2020-01-20 · resigned 2021-11-08
- BUYVIEW LIMITED — corporate director · appointed 1998-02-26 · resigned 1998-03-30

### Beneficial owners (Persons with Significant Control)

- [Guildmore Group Limited](https://whiteintel.dev/entity/850a812e-7c71-53c1-95c8-8c7f955a536e) — 75–100% shares · corporate PSC · England — since 2025-03-31
- Mr. Engin Ertosun — significant influence or control · individual PSC · England — ceased 2025-03-31
- Mr. Osman Ertosun — significant influence or control · individual PSC · England — ceased 2025-03-31
- Mrs. Zarif Ertosun — significant influence or control · individual PSC · England — ceased 2020-04-04
- Mr. Rusen Osman Ertosun — significant influence or control · individual PSC · England — ceased 2020-04-03

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03517348
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03517348

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **GUILDMORE LTD.**. Human view: https://whiteintel.dev/entity/5938ea9b-ccda-5702-ba45-620c3333d28b · Structured JSON: https://whiteintel.dev/api/public/dossier/5938ea9b-ccda-5702-ba45-620c3333d28b._

_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"._