---
title: "OPAL HOLDCO 1.5 LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/98d1249f-70cb-4c79-8e96-53ffd3f8850a
json: https://whiteintel.dev/api/public/dossier/98d1249f-70cb-4c79-8e96-53ffd3f8850a
identifier: gb-coh:16405799
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# OPAL HOLDCO 1.5 LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `gb-coh:16405799`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/98d1249f-70cb-4c79-8e96-53ffd3f8850a  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/98d1249f-70cb-4c79-8e96-53ffd3f8850a  

## Ownership & control

### Owners / controllers

- **Sanofi Pasteur S.A.** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/8e559cc9-24b8-44ba-9d30-e746bf6e4d8d

### Holdings / subsidiaries

- **OPAL HOLDCO 2 LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/ac5813d4-73a5-5762-b492-970f4b8801d7

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

A **1-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:** `16405799`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2025-04-24
- **Registered office:** 410 Thames Valley Park Drive, Reading, Berkshire, RG6 1PT, United Kingdom
- **SIC:** 64209

### Officers

- JHAVER, Siddarth — director · British · appointed 2025-04-24
- RALPHSON, Neil John, Mr. — director · British · appointed 2025-04-30
- ROUZIER, Eric — director · French · appointed 2025-04-24
- [ALTER DOMUS (UK) LIMITED](https://whiteintel.dev/entity/3bf6edd5-c4e3-588a-897a-7b64b62ad2f2) — corporate secretary · appointed 2025-04-24 · resigned 2025-10-01

### Beneficial owners (Persons with Significant Control)

- Sanofi Sa — 25–50% shares · corporate PSC · France — since 2025-04-30

## Provenance

- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/16405799

## 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 **OPAL HOLDCO 1.5 LIMITED** — https://whiteintel.dev/entity/98d1249f-70cb-4c79-8e96-53ffd3f8850a · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **OPAL HOLDCO 1.5 LIMITED**. Human view: https://whiteintel.dev/entity/98d1249f-70cb-4c79-8e96-53ffd3f8850a · Structured JSON: https://whiteintel.dev/api/public/dossier/98d1249f-70cb-4c79-8e96-53ffd3f8850a._

_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"._