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Alnylam UK Limited
Alnylam UK Limited is an active company incorporated on 31 January 2014 with the registered office located in Maidenhead, Berkshire. Alnylam UK Limited was registered 11 years ago.
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Status
Active
Active since
incorporation
Company No
08871372
Private limited company
Age
11 years
Incorporated
31 January 2014
Size
Large
Turnover is over
£54M
Balance sheet is over
£27M
Confirmation
Submitted
Dated
31 January 2025
(9 months ago)
Next confirmation dated
31 January 2026
Due by
14 February 2026
(3 months remaining)
Last change occurred
4 years ago
Accounts
Submitted
For period
1 Jan
⟶
31 Dec 2024
(1 year)
Accounts type is
Full
Next accounts for period
31 December 2025
Due by
30 September 2026
(11 months remaining)
Learn more about Alnylam UK Limited
Contact
Update Details
Address
Braywick Gate
Braywick Road
Maidenhead
SL6 1DA
United Kingdom
Same address for the past
8 years
Companies in SL6 1DA
Telephone
01255 444400
Email
Available in Endole App
Website
Alnylam.com
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People
Officers
4
Shareholders
1
Controllers (PSC)
1
Mr Jeffrey Vernon Poulton
Director • American • Lives in United States • Born in Nov 1967
Mr Carlos Arnaldo Dal Secco Pagnano
Director • Brazilian • Lives in Brazil • Born in Jun 1979
Mrs Katarzyna Maria Witkos
Director • Swiss • Lives in Switzerland • Born in May 1972
Arianna Greco
Secretary
Alnylam Pharmaceuticals INC
PSC
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Shareholders, PSCs & Group Structure
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Mutual Companies
No mutual companies found
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Financials
Net Assets, Total Assets & Total Liabilities (2015–2024)
Period Ended
31 Dec 2024
For period
31 Dec
⟶
31 Dec 2024
Traded for
12 months
Cash in Bank
£9.27M
Increased by £2.01M (+28%)
Turnover
£75.17M
Decreased by £581K (-1%)
Employees
122
Same as previous period
Total Assets
£60.46M
Increased by £10.44M (+21%)
Total Liabilities
-£14.03M
Increased by £7.53M (+116%)
Net Assets
£46.43M
Increased by £2.91M (+7%)
Debt Ratio (%)
23%
Increased by 10.2% (+78%)
See 10 Year Full Financials
Latest Activity
Full Accounts Submitted
1 Month Ago on 29 Sep 2025
Confirmation Submitted
8 Months Ago on 11 Feb 2025
Full Accounts Submitted
1 Year Ago on 10 Oct 2024
Confirmation Submitted
1 Year 8 Months Ago on 14 Feb 2024
Full Accounts Submitted
2 Years Ago on 9 Oct 2023
Mr Carlos Arnaldo Dal Secco Pagnano Appointed
2 Years 5 Months Ago on 6 Jun 2023
David Ronald Jones Resigned
2 Years 5 Months Ago on 6 Jun 2023
Confirmation Submitted
2 Years 8 Months Ago on 16 Feb 2023
Full Accounts Submitted
3 Years Ago on 21 Oct 2022
Mrs Katarzyna Maria Witkos Details Changed
3 Years Ago on 10 Jul 2022
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See All Credit Score & Limits
Documents
Full accounts made up to 31 December 2024
Submitted on 29 Sep 2025
Confirmation statement made on 31 January 2025 with no updates
Submitted on 11 Feb 2025
Full accounts made up to 31 December 2023
Submitted on 10 Oct 2024
Confirmation statement made on 31 January 2024 with no updates
Submitted on 14 Feb 2024
Full accounts made up to 31 December 2022
Submitted on 9 Oct 2023
Termination of appointment of David Ronald Jones as a director on 6 June 2023
Submitted on 22 Jun 2023
Appointment of Mr Carlos Arnaldo Dal Secco Pagnano as a director on 6 June 2023
Submitted on 22 Jun 2023
Confirmation statement made on 31 January 2023 with no updates
Submitted on 16 Feb 2023
Full accounts made up to 31 December 2021
Submitted on 21 Oct 2022
Director's details changed for Mrs Katarzyna Maria Witkos on 10 July 2022
Submitted on 16 Aug 2022
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Repayment History
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