--- title: "AVENTIS PHARMA LIMITED — Ownership Dossier" canonical: https://whiteintel.dev/entity/26b300cb-b438-543f-aba7-0b4a6d47ca89 json: https://whiteintel.dev/api/public/dossier/26b300cb-b438-543f-aba7-0b4a6d47ca89 identifier: oo:GB-COH-01535640 jurisdiction: GB risk: Low source: WhiteIntel corporate-ownership graph --- # AVENTIS PHARMA LIMITED **Type:** Company **Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb) **Identifier:** `oo:GB-COH-01535640` **Risk level:** Low **Canonical dossier:** https://whiteintel.dev/entity/26b300cb-b438-543f-aba7-0b4a6d47ca89 **Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/26b300cb-b438-543f-aba7-0b4a6d47ca89 ## Cross-source identity The same real-world entity, resolved across sources: - **AVENTIS PHARMA LIMITED** — GLEIF · `lei:549300FHMPUBGQQXOZ27` — https://whiteintel.dev/entity/c0e1fad2-5b7b-5c29-8141-0761a985dd63 ## Ownership & control ### Owners / controllers - **SANOFI-AVENTIS UK HOLDINGS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/daca43db-027f-56c7-9c64-c224fd79f934 - **SANOFI-AVENTIS UK HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/daca43db-027f-56c7-9c64-c224fd79f934 ### Holdings / subsidiaries - **MAY & BAKER LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/edb1bd54-1a69-5e79-b925-44e682ad798b - **GENZYME THERAPEUTICS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/36fc62e2-42fe-50db-ad5d-a37ac50022fe - **FISONS LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/eb930b0b-596e-58ce-b4c2-058a3e43568e - **ZENTIVA PHARMA UK LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/ce0ee0a3-e579-573e-93a8-fe4eeae4426f - **MAY & BAKER LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/edb1bd54-1a69-5e79-b925-44e682ad798b - **Aventis Pharma Limited** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/461d0b17-3cd4-4179-bbf3-d77fb6f033a4 - **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 ### UBO chain (walk to the ultimate owner) A **15-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:** `01535640` - **Status:** active - **Type:** ltd - **Incorporated:** 1980-12-18 - **Registered office:** 410 Thames Valley Park Drive, Reading, Berkshire, RG6 1PT, England - **SIC:** 46460 ### Officers - MOHAMED, Walaa Mostafa Abbas Awad — director · Egyptian · appointed 2026-02-01 - MOUSSA, Ahmed Mohamed Moustafa — director · Egyptian · appointed 2026-02-01 - AROZENA, Fernando — secretary · Spanish · appointed 1992-07-06 · resigned 1995-09-19 - CLAPHAM, Christopher Edward — secretary · British · appointed 1995-09-19 · resigned 2001-06-30 - MCCLELLAN, Michael James — secretary · American · appointed 2008-02-13 · resigned 2010-05-12 - NICHOLLS, David John — secretary · British · appointed 2001-06-30 · resigned 2004-02-23 - ROBERTS, Helen — secretary · British · appointed 2004-12-20 · resigned 2008-01-30 - SMITH, Suzanne Elaine — secretary · British · appointed 2004-02-23 · resigned 2004-12-20 - WALES, William Wesley — secretary · American · resigned 1992-07-06 - ASHTON, David Thomas — director · British · appointed 1997-12-16 · resigned 2000-02-18 - BAIRD, Jessamy Rachel — director · British · appointed 2021-08-19 · resigned 2024-03-01 - BRISSON, Gilles Denis — director · French · appointed 2004-11-08 · resigned 2006-06-01 - BROOKSBY, Nigel Stanley — director · British · appointed 2004-11-08 · resigned 2010-05-12 - BROWN, Elliot Graham, Dr — director · British · appointed 1993-04-16 · resigned 1995-07-28 - CANNON, Paul Douglas Victor — director · British · appointed 1993-04-16 · resigned 1995-09-20 - CHANCEL, Pierre — director · British · appointed 2004-05-19 · resigned 2004-11-08 - DE FORCEVILLE, Guillaume Adrien — director · French · appointed 2004-11-08 · resigned 2007-11-16 - DUHALDE, Francois-Xavier — director · French · appointed 2016-04-01 · resigned 2021-03-31 - FRY, Hugo Rupert Alexander — director · British · appointed 2017-01-01 · resigned 2021-03-31 - GARIJO, Belen — director · Spanish · appointed 2006-07-01 · resigned 2011-07-01 ### Beneficial owners (Persons with Significant Control) - [Sanofi-Aventis Uk Holdings Limited](https://whiteintel.dev/entity/daca43db-027f-56c7-9c64-c224fd79f934) — 75–100% shares · corporate PSC · England — since 2016-04-06 ## Provenance - OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/01535640 - companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/01535640 ## 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 **AVENTIS PHARMA LIMITED** — https://whiteintel.dev/entity/26b300cb-b438-543f-aba7-0b4a6d47ca89 · pricing https://whiteintel.dev/pricing. --- _This is the markdown-for-agents view of the WhiteIntel dossier for **AVENTIS PHARMA LIMITED**. Human view: https://whiteintel.dev/entity/26b300cb-b438-543f-aba7-0b4a6d47ca89 · Structured JSON: https://whiteintel.dev/api/public/dossier/26b300cb-b438-543f-aba7-0b4a6d47ca89._ _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"._