---
title: "B S D ENGINEERING & PERFORMANCE LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/cfcc96c7-fd09-5124-9cdc-cf86a3dbe7d6
json: https://whiteintel.dev/api/public/dossier/cfcc96c7-fd09-5124-9cdc-cf86a3dbe7d6
identifier: oo:GB-COH-11973044
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# B S D ENGINEERING & PERFORMANCE LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-11973044`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/cfcc96c7-fd09-5124-9cdc-cf86a3dbe7d6  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/cfcc96c7-fd09-5124-9cdc-cf86a3dbe7d6  

## Ownership & control

### Owners / controllers

- **Mary Brewin** (beneficial owner) — 50% — https://whiteintel.dev/entity/895294f7-61d8-5d21-9d05-cd3629e5bbe6
- **Mr Mark Brewin** (beneficial owner) — 50% — https://whiteintel.dev/entity/92ba6731-49d9-5b34-86a1-d5b3d6da9e0d
- **B S D GROUP HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/4f36fe31-7b2c-435d-b6d5-88c238beb480
- **Mary Brewin** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/067929ae-9ce0-4044-8bdf-e99e1ac72866
- **Mr Mark Brewin** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f5e8a7b2-278a-44c3-bcee-e267c5c89ac6

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

1. **Mary Brewin** — beneficial owner 50% → *B S D ENGINEERING & PERFORMANCE LIMITED*
1. **Mr Mark Brewin** — beneficial owner 50% → *B S D ENGINEERING & PERFORMANCE LIMITED*
1. **B S D GROUP HOLDINGS LIMITED** — beneficial owner 87.5% → *B S D ENGINEERING & PERFORMANCE LIMITED*
1. **Mary Brewin** — beneficial owner 37.5% → *B S D ENGINEERING & PERFORMANCE LIMITED*
1. **Mr Mark Brewin** — beneficial owner 37.5% → *B S D ENGINEERING & PERFORMANCE LIMITED*
2. **Mr Mark Brewin** — beneficial owner 37.5% → *B S D GROUP HOLDINGS LIMITED*
2. **Mr Mary Brewin** — beneficial owner 37.5% → *B S D GROUP HOLDINGS LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `11973044`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-05-01
- **Registered office:** 36 Tyndall Court Commerce Road, Lynch Wood, Peterborough, PE2 6LR, United Kingdom
- **SIC:** 71129

### Officers

- BREWIN, Mark — director · British · appointed 2019-05-01
- BREWIN, Mary — director · British · appointed 2020-09-08

### Beneficial owners (Persons with Significant Control)

- [B S D Group Holdings Limited](https://whiteintel.dev/entity/4f36fe31-7b2c-435d-b6d5-88c238beb480) — 75–100% shares · corporate PSC · United Kingdom — since 2025-12-04
- Mary Brewin — 25–50% shares · individual PSC · United Kingdom — ceased 2025-12-04
- Mr Mark Brewin — 25–50% shares · individual PSC · United Kingdom — ceased 2025-12-04

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11973044
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11973044

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **B S D ENGINEERING & PERFORMANCE LIMITED**. Human view: https://whiteintel.dev/entity/cfcc96c7-fd09-5124-9cdc-cf86a3dbe7d6 · Structured JSON: https://whiteintel.dev/api/public/dossier/cfcc96c7-fd09-5124-9cdc-cf86a3dbe7d6._

_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"._