---
title: "LEADENHALL NO 173 LLP — Ownership Dossier"
canonical: https://whiteintel.dev/entity/e6726a6a-9f75-582f-bbff-bf8207f425e6
json: https://whiteintel.dev/api/public/dossier/e6726a6a-9f75-582f-bbff-bf8207f425e6
identifier: oo:GB-COH-OC322271
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# LEADENHALL NO 173 LLP

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-OC322271`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/e6726a6a-9f75-582f-bbff-bf8207f425e6  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/e6726a6a-9f75-582f-bbff-bf8207f425e6  

## Ownership & control

### Owners / controllers

- **Mr Mark Harrison Tinsley** (beneficial owner) — 100% — https://whiteintel.dev/entity/db2f9340-a5f2-5ef9-b9b4-40477acc5b73
- **NOMINA SERVICES LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/08b5a02c-0f81-589e-9e98-9450729d6371
- **Mr Mark Harrison Tinsley** (beneficial owner) — https://whiteintel.dev/entity/5b4d1115-f802-458b-96a4-14e3c0355e93
- **NOMINA SERVICES LIMITED** (beneficial owner) — https://whiteintel.dev/entity/08b5a02c-0f81-589e-9e98-9450729d6371

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

A **19-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:** `OC322271`
- **Status:** active
- **Type:** llp
- **Incorporated:** 2006-09-08
- **Registered office:** 5th Floor 40 Gracechurch Street, London, EC3V 0BT, England

### Officers

- [NOMINA DESIGNATED MEMBER NO.1 LIMITED](https://whiteintel.dev/entity/e114772d-4415-50fc-a7f4-b34c62784135) — corporate llp designated member · appointed 2006-09-08
- NOMINA DESIGNATED MEMBER NO.2 LIMITED — corporate llp designated member · appointed 2006-09-08
- [NOMINA SERVICES LIMITED](https://whiteintel.dev/entity/08b5a02c-0f81-589e-9e98-9450729d6371) — corporate llp member · appointed 2021-04-29
- TINSLEY, Mark Harrison — llp member · appointed 2006-09-08 · resigned 2021-04-29

### Beneficial owners (Persons with Significant Control)

- [Nomina Services Limited](https://whiteintel.dev/entity/08b5a02c-0f81-589e-9e98-9450729d6371) — 75–100% votes · corporate PSC · England — since 2021-06-28
- Mr Mark Harrison Tinsley — 75–100% votes · individual PSC · England — ceased 2021-04-29

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/OC322271
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/OC322271

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **LEADENHALL NO 173 LLP**. Human view: https://whiteintel.dev/entity/e6726a6a-9f75-582f-bbff-bf8207f425e6 · Structured JSON: https://whiteintel.dev/api/public/dossier/e6726a6a-9f75-582f-bbff-bf8207f425e6._

_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"._