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ALNYLAM UK LIMITED

Company no. 08871372 · Private Limited Company
Active
View on Companies House

ALNYLAM UK LIMITED is an active 12-year-old company, with accounts filed and up to date and no outstanding charges or mortgages registered. No adverse signals found on the public record.

Risk indicatorsNo adverse signals found
Active on the Companies House register
Accounts filed and up to date
No outstanding charges or mortgages registered
Established — 12+ years on the register

Automated signals from Companies House filings and this company’s own filed accounts — a prompt for a closer look, not a credit score or a verdict. Verivello is not a credit reference agency.

Company details
Established 10+ years
StatusActive
Company number08871372
TypePrivate Limited Company
Incorporated31 Jan 2014 · 12 yrs
Registered officePoint, 27 Market Street, Maidenhead, SL6 8AA
Nature of business72110 - Research and experimental development on biotechnology
Next accounts due30 Sep 2026
Confirmation statement due14 Feb 2027

Property & land holdings (2)Premium

PropertyTenureArea
Second Floor Premises, Braywick Gate, Braywick Road, Maidenhead (SL6 1DA) Leasehold Windsor And Maidenhead
Ground And Third Floor Premises, Braywick Gate, Braywick Road, Maidenhead (SL6 1DA) Leasehold Windsor And Maidenhead

Freehold and leasehold titles registered to this company in the HM Land Registry Commercial & Corporate Ownership Data. This covers registered land in England and Wales only, and reflects the register at the date of the extract — recent transactions may not appear.

Directors & officers

GRECO, Arianna
Secretary · appointed 16 Jun 2017
PAGNANO, Carlos Arnaldo Dal Secco
Director · appointed 6 Jun 2023 · Brazilian
POULTON, Jeffrey Vernon
Director · appointed 13 Aug 2019 · American
WITKOS, Katarzyna Maria
Director · appointed 13 Sep 2021 · Swiss

Ownership & control (PSC)

Alnylam Pharmaceuticals Inc
Corporate entity person with significant control · ownership of shares 75 to 100 percent, voting rights 75 to 100 percent, right to appoint and remove directors
Filing status
AccountsUp to date
Last accounts made up to31 Dec 2024
Next accounts due30 Sep 2026
Confirmation statementUp to date
Last statement31 Jan 2026
Next statement due14 Feb 2027
Accounts typeFull accounts

Filing position at Companies House. A company keeping accounts and its confirmation statement up to date is a basic sign of good order; anything overdue is worth a question.

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Data from Companies House (official public register), presented by Verivello for information only — not a credit reference or financial advice. Always verify against the official source. Status & registered office checked live from Companies House · 11 Sep 2026, 13:05 UK.