---
title: "MCCALLUM PRESSURE DRILLING LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/5250b012-2b99-4456-9602-e80dcea71b9c
json: https://whiteintel.dev/api/public/dossier/5250b012-2b99-4456-9602-e80dcea71b9c
identifier: gb-coh:SC893442
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MCCALLUM PRESSURE DRILLING LTD

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `gb-coh:SC893442`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/5250b012-2b99-4456-9602-e80dcea71b9c  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/5250b012-2b99-4456-9602-e80dcea71b9c  

## Ownership & control

### Owners / controllers

- **Mrs Ryszarda Alexandra Mccallum** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/e8e2b5a3-1c7b-432c-a11e-44f28bf28784
- **Mr Stuart Ian Mccallum** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/a5b143f8-737a-4261-84b1-de8a11ec6208

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

1. **Mrs Ryszarda Alexandra Mccallum** — beneficial owner 37.5% → *MCCALLUM PRESSURE DRILLING LTD*
1. **Mr Stuart Ian Mccallum** — beneficial owner 62.5% → *MCCALLUM PRESSURE DRILLING LTD*

## Company profile (live · UK Companies House)

- **Company number:** `SC893442`
- **Status:** Active
- **Type:** Private Limited Company
- **Incorporated:** 2026-06-19
- **Registered office:** DAIRY HOUSE FLOCKLONES, INVERGOWRIE, DUNDEE, DD2 5LE
- **SIC:** 71129 - Other engineering activities

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/SC893442

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MCCALLUM PRESSURE DRILLING LTD**. Human view: https://whiteintel.dev/entity/5250b012-2b99-4456-9602-e80dcea71b9c · Structured JSON: https://whiteintel.dev/api/public/dossier/5250b012-2b99-4456-9602-e80dcea71b9c._

_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"._