---
title: "ONYX ACCOUNTANCY LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/3ea82dcf-9c7b-5873-955d-e7c27235ebf3
json: https://whiteintel.dev/api/public/dossier/3ea82dcf-9c7b-5873-955d-e7c27235ebf3
identifier: oo:GB-COH-10773786
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ONYX ACCOUNTANCY LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-10773786`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/3ea82dcf-9c7b-5873-955d-e7c27235ebf3  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/3ea82dcf-9c7b-5873-955d-e7c27235ebf3  

## Ownership & control

### Owners / controllers

- **Mrs Justyna Kluczynska** (beneficial owner) — 50% — https://whiteintel.dev/entity/8524ebce-eaf6-5b0b-93b0-ffd7f9bea815
- **Mrs Justyna Kluczynska** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/771ba7b6-ac38-4430-85b8-0a5e5d4a8e7b

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

1. **Mrs Justyna Kluczynska** — beneficial owner 50% → *ONYX ACCOUNTANCY LIMITED*
1. **Mrs Justyna Kluczynska** — beneficial owner 37.5% → *ONYX ACCOUNTANCY LIMITED*

## Company profile (live · UK Companies House)

- **Company number:** `10773786`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2017-05-16
- **Registered office:** Ground Floor, Unit 1 Hart Training Centre, Home Farm, Hart Village, Hartlepool, TS27 3AW, England
- **SIC:** 69202, 69203

### Officers

- KLUCZYNSKA, Justyna — director · Polish · appointed 2017-05-16
- OSIEJA, Aleksandra Izabela — director · Polish · appointed 2017-05-16 · resigned 2022-09-13

### Beneficial owners (Persons with Significant Control)

- Mrs Justyna Kluczynska — 25–50% shares · individual PSC · England — since 2017-05-16

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/10773786
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/10773786

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ONYX ACCOUNTANCY LIMITED**. Human view: https://whiteintel.dev/entity/3ea82dcf-9c7b-5873-955d-e7c27235ebf3 · Structured JSON: https://whiteintel.dev/api/public/dossier/3ea82dcf-9c7b-5873-955d-e7c27235ebf3._

_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"._