---
title: "ARITMA CONSTRUCTION LTD — Ownership Dossier"
canonical: https://whiteintel.dev/entity/260c5f86-7619-5d2a-ba67-686d82bd8640
json: https://whiteintel.dev/api/public/dossier/260c5f86-7619-5d2a-ba67-686d82bd8640
identifier: oo:GB-COH-11687853
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ARITMA CONSTRUCTION LTD

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-11687853`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/260c5f86-7619-5d2a-ba67-686d82bd8640  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/260c5f86-7619-5d2a-ba67-686d82bd8640  

## Ownership & control

### Owners / controllers

- **Mr Marcin Mikolajczyk** (beneficial owner) — 100% — https://whiteintel.dev/entity/19876d28-50cd-5f7d-868a-b4cbfd4e02bd
- **Mr Marcin Mikolajczyk** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/ed3feb58-c8b1-4417-a975-117f13ca0bde

### 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:** `11687853`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2018-11-20
- **Registered office:** 158 Uxbridge Road West Ealing, London, W13 8SB, England
- **SIC:** 41100, 41201, 41202, 43210

## Financials (Companies House accounts)

| Figure | 2025-11-30 |
|---|---:|
| Net assets | £3,123 |
| Shareholder funds | £3,123 |
| Current assets | £13,952 |

_Latest filed period. Full 2-year history unlocks with a paid dossier — https://whiteintel.dev/pricing. As filed at Companies House._

### Officers

- MIKOLAJCZYK, Marcin — director · Polish · appointed 2018-11-20
- MIKOLAJCZYK, Alicja Leokadia — director · Polish · appointed 2019-04-12 · resigned 2024-06-14

### Beneficial owners (Persons with Significant Control)

- Mr Marcin Mikolajczyk — 75–100% shares · individual PSC · England — since 2018-11-20

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11687853
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11687853
- companies_house_accounts — https://find-and-update.company-information.service.gov.uk/company/11687853/filing-history

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ARITMA CONSTRUCTION LTD**. Human view: https://whiteintel.dev/entity/260c5f86-7619-5d2a-ba67-686d82bd8640 · Structured JSON: https://whiteintel.dev/api/public/dossier/260c5f86-7619-5d2a-ba67-686d82bd8640._

_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"._