---
title: "MK SUBSEA LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/4959d2cd-d09d-53b9-b4a5-cc36ee96f6cc
json: https://whiteintel.dev/api/public/dossier/4959d2cd-d09d-53b9-b4a5-cc36ee96f6cc
identifier: oo:GB-COH-11038111
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# MK SUBSEA LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-11038111`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/4959d2cd-d09d-53b9-b4a5-cc36ee96f6cc  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/4959d2cd-d09d-53b9-b4a5-cc36ee96f6cc  

## Ownership & control

### Owners / controllers

- **Mr Mathew Nolan Kielkowski** (beneficial owner) — https://whiteintel.dev/entity/0b3804e1-888a-54e1-a134-e5b8fb62bf72
- **Mr Mathew Nolan Kielkowski** (beneficial owner) — https://whiteintel.dev/entity/e491b309-bc9f-4dfc-b68e-d3c961d0fe3d

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

A **2-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:** `11038111`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2017-10-30
- **Registered office:** 11038111 - COMPANIES HOUSE DEFAULT ADDRESS, Cardiff, CF14 8LH
- **SIC:** 71122

### Officers

- KIELKOWSKI, Mathew Nolan — director · English · appointed 2017-10-30

### Beneficial owners (Persons with Significant Control)

- Mr Mathew Nolan Kielkowski — significant influence or control · individual PSC — since 2017-10-30

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11038111
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11038111

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **MK SUBSEA LIMITED**. Human view: https://whiteintel.dev/entity/4959d2cd-d09d-53b9-b4a5-cc36ee96f6cc · Structured JSON: https://whiteintel.dev/api/public/dossier/4959d2cd-d09d-53b9-b4a5-cc36ee96f6cc._

_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"._