---
title: "SPECIALIST INVESTIGATIONS LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e43caf33-1bec-5b6e-8d9f-ab978e544959
json: https://whiteintel.dev/api/public/dossier/e43caf33-1bec-5b6e-8d9f-ab978e544959
identifier: oo:GB-COH-14324005
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# SPECIALIST INVESTIGATIONS LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-14324005`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e43caf33-1bec-5b6e-8d9f-ab978e544959  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e43caf33-1bec-5b6e-8d9f-ab978e544959  

## Ownership & control

### Owners / controllers

- **Mr Martin Kayes** (beneficial owner) — 50% — https://whiteintel.dev/entity/47c5617f-f64f-5a93-b162-6d5c9b8eae98
- **Mr Mark Williams-Thomas** (beneficial owner) — 50% — https://whiteintel.dev/entity/62f5dba3-62ad-519a-8819-fc7a543f347c
- **Mr Martin Kayes** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/479df4cb-1b2c-4b7e-968a-ab14da2d6068
- **Mr Mark Williams-Thomas** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/3e82b3c4-155d-4dc6-99e0-07a90f333aa0

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

A **4-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:** `14324005`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2022-08-30
- **Registered office:** Inchmead Suite, 100 Berkshire Place, Winnersh, Wokingham, RG41 5RD, United Kingdom
- **SIC:** 80300

### Officers

- KAYES, Martin — director · British · appointed 2022-08-30
- WILLIAMS-THOMAS, Mark — director · British · appointed 2022-08-30

### Beneficial owners (Persons with Significant Control)

- Mr Martin Kayes — 25–50% shares · individual PSC · United Kingdom — since 2022-08-30
- Mr Mark Williams-Thomas — 25–50% shares · individual PSC · United Kingdom — since 2022-08-30

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/14324005
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/14324005

## 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 **SPECIALIST INVESTIGATIONS LIMITED** — https://whiteintel.dev/entity/e43caf33-1bec-5b6e-8d9f-ab978e544959 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **SPECIALIST INVESTIGATIONS LIMITED**. Human view: https://whiteintel.dev/entity/e43caf33-1bec-5b6e-8d9f-ab978e544959 · Structured JSON: https://whiteintel.dev/api/public/dossier/e43caf33-1bec-5b6e-8d9f-ab978e544959._

_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"._