---
title: "PINNACLE COMPUTING (SUPPORT) LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/9776ceed-d2c9-5aa0-8e2d-d4099033a0bf
json: https://whiteintel.dev/api/public/dossier/9776ceed-d2c9-5aa0-8e2d-d4099033a0bf
identifier: oo:GB-COH-NI026898
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PINNACLE COMPUTING (SUPPORT) LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-NI026898`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/9776ceed-d2c9-5aa0-8e2d-d4099033a0bf  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/9776ceed-d2c9-5aa0-8e2d-d4099033a0bf  

## Cross-source identity

The same real-world entity, resolved across sources:

- **Pinnacle Computing (Support) Limited** — source · `psc:lps4WBOPXWFDk-0zt_8-FtJM-IM` — https://whiteintel.dev/entity/58810837-c710-4c5b-bc3e-4e914d7a220b

## Ownership & control

### Owners / controllers

- **Mrs Margaret Isabel Montgomery** (beneficial owner) — 50% — https://whiteintel.dev/entity/4ffd4cff-d5cc-5b7b-a367-e39da0e6b3fd
- **SHIN TOPCO LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/735436b5-a4a6-51fd-bc93-c3ba6042eee7
- **Mr William Kenneth Montgomery** (beneficial owner) — https://whiteintel.dev/entity/b604be19-bd65-5eed-a920-ec85fff4407a
- **Mr William Kenneth Montgomery** (beneficial owner) — https://whiteintel.dev/entity/47c725f5-69be-480a-afc2-638a02716cf4
- **Mrs Margaret Isabel Montgomery** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/94bff9d8-9dcc-441d-885b-f5e9a42d7cba
- **K3 ADVISORY GROUP LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/834eaba2-ca7b-5809-8df9-2fb4a3d5a9b8
- **SHIN TOPCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/735436b5-a4a6-51fd-bc93-c3ba6042eee7

### Holdings / subsidiaries

- **PROSYS COMPUTING LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/e7e81cbb-079d-5edc-8e09-9745806010c6
- **FLINT STUDIOS LTD** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/143213f0-a9d9-561f-a6e4-6bc5d071e6a0
- **RICJAN LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/15f49563-99b1-500d-b17b-88cde32d9094

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

A **21-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:** `NI026898`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 1992-09-22
- **Registered office:** Pinnacle House, 153 Upper Newtownards Road, Belfast, BT4 3HX
- **SIC:** 62090

### Officers

- CAUTER, Michael Lee — director · British · appointed 2025-11-05
- MELBOURNE, Andrew Robert — director · British · appointed 2024-10-29
- MONTGOMERY, William Kenneth — director · British,Irish · appointed 2024-10-29
- SPENCER, James Harvey — director · British · appointed 2001-09-03
- TINDLE, Rachel Jane — director · British · appointed 2024-10-29
- CONNOLLY, Brian Thomas — secretary · appointed 1992-09-22 · resigned 2024-10-29
- BECK, Angus Spence — director · British · appointed 1992-09-22 · resigned 2003-12-10
- LESTER, Brian David — director · British · appointed 2005-01-01 · resigned 2024-10-29
- MACDONALD, Donald Patrick — director · British · appointed 1992-09-22 · resigned 2003-12-10
- MONTGOMERY, Margaret Isabel — director · British · appointed 2011-10-01 · resigned 2024-10-29
- MONTGOMERY, Steven Robert Jason — director · British · appointed 2014-01-01 · resigned 2024-10-29
- MONTGOMERY, William Kenneth — director · British · appointed 2014-01-01 · resigned 2024-10-29
- MONTGOMERY, William Kenneth — director · British,Irish · appointed 1992-09-22 · resigned 2015-11-09
- RIGBY, John Stephen — director · British · appointed 2024-10-29 · resigned 2025-11-05

### Beneficial owners (Persons with Significant Control)

- [K3 Advisory Group Limited](https://whiteintel.dev/entity/834eaba2-ca7b-5809-8df9-2fb4a3d5a9b8) — 75–100% shares · corporate PSC · England — since 2025-11-12
- [Shin Topco Limited](https://whiteintel.dev/entity/735436b5-a4a6-51fd-bc93-c3ba6042eee7) — 75–100% shares · corporate PSC · England — ceased 2025-11-12
- Mrs Margaret Isabel Montgomery — 25–50% shares · individual PSC — ceased 2024-10-29
- Mr William Kenneth Montgomery — significant influence or control · individual PSC — ceased 2024-10-29

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/NI026898
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/NI026898

## 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 **PINNACLE COMPUTING (SUPPORT) LIMITED** — https://whiteintel.dev/entity/9776ceed-d2c9-5aa0-8e2d-d4099033a0bf · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PINNACLE COMPUTING (SUPPORT) LIMITED**. Human view: https://whiteintel.dev/entity/9776ceed-d2c9-5aa0-8e2d-d4099033a0bf · Structured JSON: https://whiteintel.dev/api/public/dossier/9776ceed-d2c9-5aa0-8e2d-d4099033a0bf._

_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"._