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Operational Research Society
Operational Research Society is an active company incorporated on 30 June 1960 with the registered office located in Birmingham, West Midlands. Operational Research Society was registered 65 years ago.
Watch Company
Status
Active
Active since
incorporation
Company No
00663819
Private limited by guarantee without share capital
Age
65 years
Incorporated
30 June 1960
Size
Small
Turnover is under
£15M
Balance sheet is under
£7.5M
Under
50 employees
Confirmation
Submitted
Dated
9 October 2024
(11 months ago)
Next confirmation dated
9 October 2025
Due by
23 October 2025
(1 month remaining)
Last change occurred
8 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
(1 year remaining)
Learn more about Operational Research Society
Contact
Address
Seymour House
12 Edward Street
Birmingham
B1 2RX
Same address for the past
31 years
Companies in B1 2RX
Telephone
01212339300
Email
Available in Endole App
Website
Theorsociety.com
See All Contacts
People
Officers
16
Shareholders
-
Controllers (PSC)
1
Professor Sanja Petrovic
Director • Lecturer • British • Lives in England • Born in Nov 1963
Professor Jacco Thijssen
Director • University Lecturer • Dutch • Lives in England • Born in Apr 1976
Sebastian James Hargreaves
Secretary
Dr Colette Fletcher
Secretary
Gavin Blackett
Secretary
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Shareholders, PSCs & Group Structure
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Mutual Companies
Larrainzar Consulting Solutions Limited
Mr John Charles Larrainzar Medhurst is a mutual person.
Active
Malt, The Brewery Limited
Robert Andrew Scott is a mutual person.
Dissolved
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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
£172.64K
Decreased by £20.47K (-11%)
Turnover
£1.35M
Decreased by £49.27K (-4%)
Employees
18
Increased by 2 (+13%)
Total Assets
£2.28M
Decreased by £259.25K (-10%)
Total Liabilities
-£246.02K
Increased by £23.26K (+10%)
Net Assets
£2.03M
Decreased by £282.51K (-12%)
Debt Ratio (%)
11%
Increased by 2.02% (+23%)
See 10 Year Full Financials
Latest Activity
Full Accounts Submitted
9 Days Ago on 28 Aug 2025
Dr Mosab Bazargani Details Changed
1 Month Ago on 10 Jul 2025
Dr Mosab Bazargani Appointed
2 Months Ago on 27 Jun 2025
Gavin Blackett Resigned
4 Months Ago on 6 May 2025
Dr Colette Fletcher Appointed
4 Months Ago on 6 May 2025
Professor Jacco Thijssen Appointed
6 Months Ago on 1 Mar 2025
Mr Gavin Blackett Appointed
8 Months Ago on 1 Jan 2025
Heather Tewkesbury Resigned
8 Months Ago on 31 Dec 2024
Vania Sena Resigned
8 Months Ago on 31 Dec 2024
Sebastian James Hargreaves Resigned
8 Months Ago on 31 Dec 2024
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Get Credit Report
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See All Credit Score & Limits
Documents
Full accounts made up to 31 December 2024
Submitted on 28 Aug 2025
Director's details changed for Dr Mosab Bazargani on 10 July 2025
Submitted on 10 Jul 2025
Appointment of Dr Mosab Bazargani as a director on 27 June 2025
Submitted on 8 Jul 2025
Termination of appointment of Gavin Blackett as a secretary on 6 May 2025
Submitted on 23 May 2025
Appointment of Dr Colette Fletcher as a secretary on 6 May 2025
Submitted on 23 May 2025
Appointment of Professor Jacco Thijssen as a director on 1 March 2025
Submitted on 12 Mar 2025
Termination of appointment of Heather Tewkesbury as a director on 31 December 2024
Submitted on 7 Jan 2025
Appointment of Mr Gavin Blackett as a secretary on 1 January 2025
Submitted on 7 Jan 2025
Termination of appointment of Sebastian James Hargreaves as a secretary on 31 December 2024
Submitted on 7 Jan 2025
Termination of appointment of Vania Sena as a director on 31 December 2024
Submitted on 7 Jan 2025
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Repayment History
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