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Synchrostor Limited
Synchrostor Limited is an active company incorporated on 14 December 2017 with the registered office located in Edinburgh, City of Edinburgh. Synchrostor Limited was registered 8 years ago.
Watch Company
Status
Active
Active since
incorporation
Company No
SC583877
Private limited company
Scottish Company
Age
8 years
Incorporated
14 December 2017
Size
Small
Balance sheet is under
£7.5M
Under
50 employees
Confirmation
Submitted
Dated
19 June 2025
(7 months ago)
Next confirmation dated
19 June 2026
Due by
3 July 2026
(5 months remaining)
Last change occurred
7 months ago
Accounts
Submitted
For period
1 Jun
⟶
31 May 2025
(12 months)
Accounts type is
Total Exemption Full
Next accounts for period
31 May 2026
Due by
28 February 2027
(1 year 1 month remaining)
Learn more about Synchrostor Limited
Contact
Update Details
Address
58 Morrison Street
C/O Anderson Strathern Llp
Edinburgh
EH3 8BP
Scotland
Address changed on
5 Dec 2023
(2 years 1 month ago)
Previous address was
1 Rutland Court Edinburgh Midlothian EH3 8EY Scotland
Companies in EH3 8BP
Telephone
Unreported
Email
Unreported
Website
Synchrostor.co.uk
See All Contacts
People
Officers
6
Shareholders
11
Controllers (PSC)
3
Mr Jacob Ahlqvist
Secretary • Director • Finnish • Lives in Scotland • Born in Mar 1976
Gareth Hughes
Director • British • Lives in Switzerland • Born in Mar 1976
Waverley Duncan Cameron
Director • Retired • British • Lives in UK • Born in May 1944
Harry Hans Range
Director • None • Canadian • Lives in Canada • Born in Aug 1956
William Hugh Salvin Rampen
Director • British • Lives in Scotland • Born in Jan 1956
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Shareholders, PSCs & Group Structure
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Mutual Companies
Ocean Cooling Technology Limited
William Hugh Salvin Rampen is a mutual person.
Active
Quetzal Limited
William Hugh Salvin Rampen is a mutual person.
Active
LST Machining Ltd
Jacob Ahlqvist is a mutual person.
Active
See All Mutual Companies
Brands
SynchroStor
SynchroStor is an engineering R&D business focused on developing grid-scale energy storage technology using pumped heat.
Financials
Net Assets, Total Assets & Total Liabilities (2019–2025)
Period Ended
31 May 2025
For period
31 May
⟶
31 May 2025
Traded for
12 months
Cash in Bank
£519.5K
Decreased by £697.19K (-57%)
Turnover
Unreported
Same as previous period
Employees
28
Increased by 5 (+22%)
Total Assets
£1.6M
Decreased by £613.16K (-28%)
Total Liabilities
-£99.36K
Decreased by £760.51K (-88%)
Net Assets
£1.5M
Increased by £147.36K (+11%)
Debt Ratio (%)
6%
Decreased by 32.63% (-84%)
See 10 Year Full Financials
Latest Activity
Full Accounts Submitted
5 Months Ago on 12 Aug 2025
Confirmation Submitted
7 Months Ago on 19 Jun 2025
Lothian School of Technology (PSC) Appointed
8 Months Ago on 28 May 2025
Stephen Hugh Salter (PSC) Resigned
8 Months Ago on 28 May 2025
Confirmation Submitted
1 Year 1 Month Ago on 19 Dec 2024
Full Accounts Submitted
1 Year 2 Months Ago on 11 Nov 2024
Mr Theophilos Priovolos (PSC) Details Changed
1 Year 10 Months Ago on 5 Mar 2024
Confirmation Submitted
2 Years 1 Month Ago on 18 Dec 2023
Registered Address Changed
2 Years 1 Month Ago on 5 Dec 2023
Full Accounts Submitted
2 Years 2 Months Ago on 27 Nov 2023
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Documents
Replacement filing of PSC01 for Theophilos Priovolos
Submitted on 15 Dec 2025
Statement of capital following an allotment of shares on 28 October 2025
Submitted on 28 Oct 2025
Total exemption full accounts made up to 31 May 2025
Submitted on 12 Aug 2025
Confirmation statement made on 19 June 2025 with updates
Submitted on 19 Jun 2025
Notification of Lothian School of Technology as a person with significant control on 28 May 2025
Submitted on 28 May 2025
Cessation of Stephen Hugh Salter as a person with significant control on 28 May 2025
Submitted on 28 May 2025
Confirmation statement made on 18 December 2024 with no updates
Submitted on 19 Dec 2024
Total exemption full accounts made up to 31 May 2024
Submitted on 11 Nov 2024
Change of details for Mr Theophilos Priovolos as a person with significant control on 5 March 2024
Submitted on 5 Mar 2024
Confirmation statement made on 18 December 2023 with updates
Submitted on 18 Dec 2023
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Repayment History
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