---
title: "ADD CONSULTANCY SERVICES LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e9bbcf3d-4cc8-5347-907e-c69c9b62028d
json: https://whiteintel.dev/api/public/dossier/e9bbcf3d-4cc8-5347-907e-c69c9b62028d
identifier: oo:GB-COH-10782312
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ADD CONSULTANCY SERVICES LIMITED

**Type:** Company  
**Jurisdiction:** GB  
**Identifier:** `oo:GB-COH-10782312`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e9bbcf3d-4cc8-5347-907e-c69c9b62028d  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e9bbcf3d-4cc8-5347-907e-c69c9b62028d  

## Ownership & control

### Owners / controllers

- **Miss Leigh Mathieson** (beneficial owner) — 50% — https://whiteintel.dev/entity/8f9e69ee-0b8b-55be-a8d0-b19c27549d36
- **Miss Leigh Mathieson** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/a58bcfd2-fee4-4609-8471-d514ed5f2a06
- **Miss Kym Charleston** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/f882f9c9-0d4f-4509-afb8-15ff93e8eb81
- **Mr Alan Duncan** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/002fd4ff-9d07-400c-a848-347e53c8cd16

### 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:** `10782312`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2017-05-22
- **Registered office:** Building 18, Gateway 1000 Whittle Way, Arlington Business Park, Stevenage, Hertfordshire, SG1 2FP, England
- **SIC:** 62012

### Officers

- DUNCAN, Alan — director · British · appointed 2017-05-22
- MATHIESON, Leigh — director · British · appointed 2023-01-09

### Beneficial owners (Persons with Significant Control)

- Miss Leigh Mathieson — 25–50% shares · individual PSC · England — since 2023-01-09
- Mr Alan Duncan — 25–50% shares · individual PSC · England — since 2017-05-22
- Miss Kym Charleston — 25–50% shares · individual PSC · England — ceased 2022-05-21

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/10782312
- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/10782312

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ADD CONSULTANCY SERVICES LIMITED**. Human view: https://whiteintel.dev/entity/e9bbcf3d-4cc8-5347-907e-c69c9b62028d · Structured JSON: https://whiteintel.dev/api/public/dossier/e9bbcf3d-4cc8-5347-907e-c69c9b62028d._

_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"._