---
title: "JONAS COMPUTING (UK) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ee112d3a-71b4-5421-bfcc-180881fad223
json: https://whiteintel.dev/api/public/dossier/ee112d3a-71b4-5421-bfcc-180881fad223
identifier: oo:GB-COH-05301607
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# JONAS COMPUTING (UK) LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-05301607`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ee112d3a-71b4-5421-bfcc-180881fad223  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ee112d3a-71b4-5421-bfcc-180881fad223  

## Cross-source identity

The same real-world entity, resolved across sources:

- **Jonas Computing (Uk) Limited** — source · `gb-coh:5301607` — https://whiteintel.dev/entity/6e4b391b-c096-4d87-8146-d50596df5555

## Ownership & control

### Owners / controllers

- **CONSTELLATION SOFTWARE UK HOLDCO LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/c6c0a124-30cc-5280-b76c-ce62afd7bd90
- **CONSTELLATION SOFTWARE UK HOLDCO LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/c6c0a124-30cc-5280-b76c-ce62afd7bd90

### Holdings / subsidiaries

- **WORKFLOW ASSET MANAGEMENT LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/aa6402af-c4f2-52db-aa8d-15b7d00427a2
- **POWER2SMS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/55c664a2-15d2-5ef2-a06e-ff9399cff91c
- **BLAYHALL MARINE LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/cf0ef3b9-ded5-53d9-973d-504ac2d631e1
- **HELLENIC SYSTEMS HOLDINGS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/8f36e3be-d50a-5959-9e0c-32efc8381dd0
- **SALON SOFTWARE SOLUTIONS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/99c6530f-45ff-5aee-9fdf-b066004d44b3
- **CONTRONICS (HOLDINGS) LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/f19b197b-6b16-56ba-ac54-697be782f787
- **SHOW DATA SYSTEMS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/21c36214-96ce-518f-bb84-9f01f9e3eb40
- **GREEN 4 SOLUTIONS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/11390af5-ea91-5aa6-95f7-0e56007e5f70
- **FITRONICS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/4e5d001e-eee2-5838-9031-72e6c23d066d
- **MARRAKECH ( U.K.) LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/4992b590-4338-5c1c-b106-21c12d1d687d
- **XN LEISURE SYSTEMS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/97c7e291-c752-5471-8c60-4d528ea71e9e
- **ROCK SOLID KNOWLEDGE LTD** (beneficial owner) — 100% — https://whiteintel.dev/entity/fa0f15de-a981-56e5-a05f-43a68130fcb7

…and **64** more subsidiaries/holdings. Resolve the full list with `get_dossier` on the WhiteIntel MCP (`npx -y @whiteintel/mcp-server`) or a one-off dossier — https://whiteintel.dev/pricing.

### 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:** `05301607`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2004-12-01
- **Registered office:** Gladstone House, Hithercroft Road, Wallingford, OX10 9BT, England
- **SIC:** 62012

### Officers

- GOODWIN, Martin — secretary · appointed 2023-06-23
- CLANCY, Richard — director · British · appointed 2025-07-18
- GOODWIN, Martin — director · British · appointed 2024-11-20
- MACKINNON, Jeffrey Raymond — director · Canadian · appointed 2019-01-01
- MORGAN, Kevin James — director · British · appointed 2025-06-25
- SYMONS, Barry Alan — director · Canadian · appointed 2019-01-01
- BAPTIE, Thomas — secretary · appointed 2018-11-01 · resigned 2019-12-01
- BELGHOUL, Jemma — secretary · appointed 2019-12-01 · resigned 2023-06-23
- BRIAN, Stephen — secretary · appointed 2017-10-17 · resigned 2018-10-31
- MCNALLY, Stephen — secretary · appointed 2015-12-18 · resigned 2017-10-17
- NOBLE, Farley — secretary · appointed 2011-06-03 · resigned 2015-12-18
- VEJLANG, Klaus, Executive — secretary · Danish · appointed 2004-12-13 · resigned 2005-10-24
- SWIFT INCORPORATIONS LIMITED — corporate nominee secretary · appointed 2004-12-01 · resigned 2004-12-13
- TAYLOR WESSING SECRETARIES LIMITED — corporate secretary · appointed 2005-10-24 · resigned 2011-07-19
- ARKEVELD, Patrick Grant — director · British · appointed 2008-05-05 · resigned 2011-06-03
- BOXALL, Darrell Peter — director · British · appointed 2018-11-01 · resigned 2025-07-31
- CLANCY, Richard — director · British · appointed 2018-11-01 · resigned 2025-05-08
- KEATES, Tracey — director · Canadian · appointed 2011-09-15 · resigned 2013-06-11
- MACKINNON, Jeffrey Raymond — director · Canadian · appointed 2013-06-11 · resigned 2018-10-31
- MCKEE, Jeffrey — director · Canadian · appointed 2005-09-01 · resigned 2011-06-03

### Beneficial owners (Persons with Significant Control)

- [Constellation Software Uk Holdco Ltd](https://whiteintel.dev/entity/c6c0a124-30cc-5280-b76c-ce62afd7bd90) — 75–100% shares · corporate PSC · England — since 2016-04-06

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/05301607
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/05301607

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **JONAS COMPUTING (UK) LIMITED** — https://whiteintel.dev/entity/ee112d3a-71b4-5421-bfcc-180881fad223 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **JONAS COMPUTING (UK) LIMITED**. Human view: https://whiteintel.dev/entity/ee112d3a-71b4-5421-bfcc-180881fad223 · Structured JSON: https://whiteintel.dev/api/public/dossier/ee112d3a-71b4-5421-bfcc-180881fad223._

_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"._