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Synairgen Research Limited

Synairgen Research Limited is an active company incorporated on 10 June 2003 with the registered office located in Southampton, Hampshire. Synairgen Research Limited was registered 22 years ago.
Status
Active
Active since incorporation
Company No
04793696
Private limited company
Age
22 years
Incorporated 10 June 2003
Size
Small
Balance sheet is under £7.5M
Under 50 employees
Confirmation
Submitted
Dated 26 May 2025 (5 months ago)
Next confirmation dated 26 May 2026
Due by 9 June 2026 (6 months remaining)
Last change occurred 5 months 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 (10 months remaining)
Learn more about Synairgen Research Limited
Contact Update Details
Address
Mailpoint 810 Level F
South Block Southampton
General Hospital Tremona Road
Southampton
SO16 6YD
Same address since incorporation
Telephone
02380512800
Email
Available in Endole App
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People
Officers
6
Shareholders
1
Controllers (PSC)
1
Joseph Tregonning Colliver
Director • Secretary • British • Lives in England • Born in Mar 1980
Richard James Marsden
Director • Chief Executive Officer • British • Lives in UK • Born in Jan 1967
Professor Stephen Townley Holgate
Director • British • Lives in England • Born in May 1947
Dr Phillip David Monk
Director • Chief Scientific Officer • British • Lives in UK • Born in Apr 1969
Dr Mark Parry-Billings
Director • British • Lives in England • Born in May 1964
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Shareholders, PSCs & Group Structure
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Mutual Companies
Synairgen Limited
Professor Stephen Townley Holgate, Richard James Marsden, and 2 more are mutual people.
Active
The Kennedy Trust For Rheumatology Research
Professor Stephen Townley Holgate is a mutual person.
Active
Asthma Allergy & Inflammation Research Trust Ltd
Professor Stephen Townley Holgate is a mutual person.
Active
Colliver Advisory Ltd
Joseph Tregonning Colliver is a mutual person.
Active
Inhalasol Ltd
Richard James Marsden is a mutual person.
Active
Hellenic Dynamics Plc
Joseph Tregonning Colliver is a mutual person.
Liquidation
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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
£204K
Decreased by £29K (-12%)
Turnover
Unreported
Same as previous period
Employees
33
Increased by 1 (+3%)
Total Assets
£3.33M
Increased by £984K (+42%)
Total Liabilities
-£1.5M
Decreased by £125K (-8%)
Net Assets
£1.83M
Increased by £1.11M (+154%)
Debt Ratio (%)
45%
Decreased by 24.23% (-35%)
See 10 Year Full Financials
Latest Activity
Full Accounts Submitted
1 Month Ago on 3 Oct 2025
Dr Mark Parry-Billings Appointed
3 Months Ago on 24 Jul 2025
Richard James Marsden Resigned
4 Months Ago on 1 Jul 2025
Confirmation Submitted
5 Months Ago on 3 Jun 2025
Synairgen Plc (PSC) Details Changed
5 Months Ago on 19 May 2025
Stephen Townley Holgate Resigned
10 Months Ago on 16 Jan 2025
Full Accounts Submitted
1 Year 1 Month Ago on 9 Oct 2024
Phillip David Monk Resigned
1 Year 2 Months Ago on 6 Sep 2024
Confirmation Submitted
1 Year 3 Months Ago on 2 Aug 2024
Mr Joseph Tregonning Colliver Appointed
2 Years Ago on 6 Nov 2023
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Documents
Full accounts made up to 31 December 2024
Submitted on 3 Oct 2025
Appointment of Dr Mark Parry-Billings as a director on 24 July 2025
Submitted on 25 Jul 2025
Termination of appointment of Richard James Marsden as a director on 1 July 2025
Submitted on 21 Jul 2025
Confirmation statement made on 26 May 2025 with updates
Submitted on 3 Jun 2025
Change of details for Synairgen Plc as a person with significant control on 19 May 2025
Submitted on 3 Jun 2025
Termination of appointment of Stephen Townley Holgate as a director on 16 January 2025
Submitted on 22 Apr 2025
Full accounts made up to 31 December 2023
Submitted on 9 Oct 2024
Termination of appointment of Phillip David Monk as a director on 6 September 2024
Submitted on 6 Sep 2024
Appointment of Mr Joseph Tregonning Colliver as a secretary on 6 November 2023
Submitted on 2 Aug 2024
Confirmation statement made on 26 May 2024 with no updates
Submitted on 2 Aug 2024
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Repayment History
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