--- title: "SANOFI-AVENTIS UK HOLDINGS LIMITED — Ownership Dossier" canonical: https://whiteintel.dev/entity/daca43db-027f-56c7-9c64-c224fd79f934 json: https://whiteintel.dev/api/public/dossier/daca43db-027f-56c7-9c64-c224fd79f934 identifier: oo:GB-COH-03203829 jurisdiction: GB risk: Low source: WhiteIntel corporate-ownership graph --- # SANOFI-AVENTIS UK HOLDINGS LIMITED **Type:** Company **Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb) **Identifier:** `oo:GB-COH-03203829` **Risk level:** Low **Canonical dossier:** https://whiteintel.dev/entity/daca43db-027f-56c7-9c64-c224fd79f934 **Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/daca43db-027f-56c7-9c64-c224fd79f934 ## Cross-source identity The same real-world entity, resolved across sources: - **SANOFI-AVENTIS UK HOLDINGS LIMITED** — GLEIF · `lei:549300H4ZG7JIH8FZJ30` — https://whiteintel.dev/entity/fc46b0a4-c0c5-592d-8730-137945ac1023 ## Ownership & control ### Owners / controllers - **SANOFI-SYNTHELABO UK LIMITED** (beneficial owner) — 50% — https://whiteintel.dev/entity/d5d1bb92-c897-531e-b81d-098f80239ac7 - **AVENTIS PHARMA HOLDINGS LIMITED** (beneficial owner) — 75% — https://whiteintel.dev/entity/280fd9a5-f230-5f82-98cb-fbe7b3e333ad - **AVENTIS PHARMA HOLDINGS LIMITED** (beneficial owner) — 62.5% — https://whiteintel.dev/entity/280fd9a5-f230-5f82-98cb-fbe7b3e333ad - **SANOFI-SYNTHELABO UK LIMITED** (beneficial owner) — 37.5% — https://whiteintel.dev/entity/d5d1bb92-c897-531e-b81d-098f80239ac7 ### Holdings / subsidiaries - **AVENTIS PHARMA LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/26b300cb-b438-543f-aba7-0b4a6d47ca89 - **FISONS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/eb930b0b-596e-58ce-b4c2-058a3e43568e - **MAY & BAKER LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/edb1bd54-1a69-5e79-b925-44e682ad798b - **MAY & BAKER LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/edb1bd54-1a69-5e79-b925-44e682ad798b - **GENZYME THERAPEUTICS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/36fc62e2-42fe-50db-ad5d-a37ac50022fe - **FISONS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/eb930b0b-596e-58ce-b4c2-058a3e43568e - **AVENTIS PHARMA LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/26b300cb-b438-543f-aba7-0b4a6d47ca89 ### 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:** `03203829` - **Status:** active - **Type:** ltd - **Incorporated:** 1996-05-24 - **Registered office:** 410 Thames Valley Park Drive, Reading, Berkshire, RG6 1PT, England - **SIC:** 64209 ### Officers - MOHAMED, Walaa Mostafa Abbas Awad — director · Egyptian · appointed 2026-02-01 - MOUSSA, Ahmed Mohamed Moustafa — director · Egyptian · appointed 2026-02-01 - CLAPHAM, Christopher Edward — secretary · British · appointed 2000-02-18 · resigned 2001-06-30 - HARRIS, Michael John — secretary · British · appointed 1996-06-28 · resigned 1996-10-04 - MCCLELLAN, Michael James — secretary · American · appointed 2008-02-13 · resigned 2010-05-12 - NICHOLLS, David John — secretary · British · appointed 2001-06-30 · resigned 2004-12-20 - NICHOLLS, David John — secretary · British · appointed 1996-10-04 · resigned 2000-02-18 - ROBERTS, Helen — secretary · British · appointed 2004-12-20 · resigned 2008-01-30 - SWIFT INCORPORATIONS LIMITED — corporate nominee secretary · appointed 1996-05-24 · resigned 1996-06-28 - ABREHART, David Charles — director · British · appointed 1999-10-01 · resigned 2000-01-12 - ALLINGTON, Timothy James — director · British · appointed 1996-06-28 · resigned 1998-05-20 - AULAGNON, Marie-Christine Gisele — director · French · appointed 1997-04-07 · resigned 1999-10-01 - BAIRD, Jessamy Rachel — director · British · appointed 2021-08-19 · resigned 2024-03-01 - BRISSON, Gilles Denis — director · French · appointed 1998-02-16 · resigned 2006-06-01 - BROOKSBY, Nigel Stanley — director · British · appointed 2005-07-01 · resigned 2010-05-12 - CHATEAU, Jean Louis — director · French · appointed 2000-12-01 · resigned 2004-06-30 - COLQUHOUN, Richard Lyons — director · British · appointed 1996-06-28 · resigned 1997-12-04 - DE FORCEVILLE, Guillaume Adrien — director · French · appointed 2005-07-01 · resigned 2007-11-16 - DUBOIS, Bernard — director · French · appointed 1998-04-01 · resigned 2008-01-29 - DUHALDE, Francois-Xavier — director · French · appointed 2016-04-01 · resigned 2021-03-31 ### Beneficial owners (Persons with Significant Control) - [Sanofi-Synthelabo Uk Limited](https://whiteintel.dev/entity/d5d1bb92-c897-531e-b81d-098f80239ac7) — 25–50% shares · corporate PSC · England — since 2016-04-06 - [Aventis Pharma Holdings Limited](https://whiteintel.dev/entity/280fd9a5-f230-5f82-98cb-fbe7b3e333ad) — 50–75% shares · corporate PSC · England — since 2016-04-06 ## Provenance - OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/03203829 - companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/03203829 ## 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 **SANOFI-AVENTIS UK HOLDINGS LIMITED** — https://whiteintel.dev/entity/daca43db-027f-56c7-9c64-c224fd79f934 · pricing https://whiteintel.dev/pricing. --- _This is the markdown-for-agents view of the WhiteIntel dossier for **SANOFI-AVENTIS UK HOLDINGS LIMITED**. Human view: https://whiteintel.dev/entity/daca43db-027f-56c7-9c64-c224fd79f934 · Structured JSON: https://whiteintel.dev/api/public/dossier/daca43db-027f-56c7-9c64-c224fd79f934._ _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"._