---
title: "PROSPERMILL — Ownership Dossier"
canonical: https://whiteintel.dev/entity/8b5ccc78-2fbe-5d84-8236-195ebcf159fa
json: https://whiteintel.dev/api/public/dossier/8b5ccc78-2fbe-5d84-8236-195ebcf159fa
identifier: oo:GB-COH-11807105
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# PROSPERMILL

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-11807105`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/8b5ccc78-2fbe-5d84-8236-195ebcf159fa  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/8b5ccc78-2fbe-5d84-8236-195ebcf159fa  

## Ownership & control

### Owners / controllers

- **Mr Andrew David Mills** (beneficial owner) — 50% — https://whiteintel.dev/entity/35c3abad-3493-56a5-929f-74099c6da55a
- **Mrs Caroline Jean Mills** (beneficial owner) — 50% — https://whiteintel.dev/entity/2fee1cad-a881-59f5-9a3f-0b7b93829104
- **Mr Andrew David Mills** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/a3d214c8-9a11-4a51-876d-c72dce724949
- **Mrs Caroline Jean Mills** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8c09b649-c508-4ee1-9a11-b90dbeb36575

### 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:** `11807105`
- **Status:** active
- **Type:** private unlimited
- **Incorporated:** 2019-02-05
- **Registered office:** A3 Broomsleigh Business Park, Worsley Bridge Road, London, SE26 5BN, England
- **SIC:** 96090

### Officers

- MILLS, Sarah — secretary · appointed 2021-09-27
- MILLS, Andrew David — director · British · appointed 2019-02-05
- MILLS, Caroline Jean — director · British · appointed 2019-02-05

### Beneficial owners (Persons with Significant Control)

- Mr Andrew David Mills — 25–50% shares · individual PSC · England — since 2019-02-05
- Mrs Caroline Jean Mills — 25–50% shares · individual PSC · England — since 2019-02-05

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/11807105
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/11807105

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **PROSPERMILL**. Human view: https://whiteintel.dev/entity/8b5ccc78-2fbe-5d84-8236-195ebcf159fa · Structured JSON: https://whiteintel.dev/api/public/dossier/8b5ccc78-2fbe-5d84-8236-195ebcf159fa._

_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"._