Annual accounts
Total Exemption Full accounts
31/10/2027Filing deadline
Made up to 31/01/2026Due 31/10/2027
- Next accounts made up to
- 31/01/2027
- Last accounts made up to
- 31/01/2026
SYSTEM SIMULATION LIMITED
ActiveRegistry details
Reference data exactly as held at Companies House.
Copy registry details
- Registered office
- 406 Clerkenwell Workshops 27-31 Clerkenwell Close, London EC1R 0AT
- Classification (SIC)
- Business and domestic software development (62.01/2 - SIC 2007)
- Accounts type
- Total Exemption Full
Company activity
The 4 most recent documents filed at Companies House.
Pre-Score for UK companies is coming soon
- 18/04/2026View PDF (3 pages)
Replacement Filing of Confirmation Statement dated 2025-01-10
- 22/02/2026View PDF (3 pages)
Confirmation statement made on 2026-01-10 with no updates
- 26/11/2025View PDF (7 pages)
Amended total exemption full accounts made up to 2025-01-31
- 28/10/2025View PDF (8 pages)
Total exemption full accounts made up to 2025-01-31
Coming soon
What Pre-Score will tell you
- Whether the filed accounts are strengthening or weakening year on year.
- Whether this company files on time, and how often its record changes.
- How its officers and controlling parties connect to other UK companies.
Accounts and confirmation statement
The two filings Companies House requires every year, and where each one stands against its deadline today.
On schedule
Confirmation statement
Confirms the registry record is up to date
24/01/2027Filing deadline
Last statement 10/01/2026Due 24/01/2027
- Next statement date
- 10/01/2027
- Last statement dated
- 10/01/2026
Financial performance
The latest figures SYSTEM SIMULATION LIMITED filed. Okredo holds filed accounts data for 2021–2025; the year-by-year record is on the financials page.
Net Assets
£460.72K2025
68.55%vs 20242024: £273.34K
Total Assets
£864.29K2025
32.02%vs 20242024: £654.64K
Cash in Bank
£742.38K2025
29.18%vs 20242024: £574.67K
Total Liabilities
£403.58K2025
5.84%vs 20242024: £381.31K
Employees
132025
+1vs 20242024: 12
Of the 4 measures with an earlier filing to compare against, 4 rose. Total assets moved furthest, up 32.02% on 2024. See the full financial analysis for SYSTEM SIMULATION LIMITED.
The full financial record
Four ways through SYSTEM SIMULATION LIMITED's filed accounts — the year-by-year numbers, the compound rates and the ratios behind them.
Net Assets · +30.2% a year (CAGR)Three-year trend, 2023–2025Every measure end to end across 2023, 2024 and 2025, with the compound rate behind each one.See what moved5 chartsCharts by indicator5 filed indicators plotted year by year, 2021–2025.Plot the figuresNothing estimatedRatios from the filed figures4 ratios computed from this company's own reported amounts, each shown against the year it was derived from.Check the ratios5 × 5 yearsEvery figure by yearAll 5 measures Okredo tracks across 5 reported years, exactly as filed.Open the table
Employees
Headcount as reported to Companies House for 2021–2025.
| Year | Employees | Change |
|---|---|---|
| 2025 | 13 | +1 |
| 2024 | 12 | 0 |
| 2023 | 12 | 0 |
| 2022 | 12 | +1 |
| 2021 | 11 | – |
Reported employee count increased from 11 in 2021 to 13 in 2025. See how headcount moved alongside the reported financials.
Credit report
It is a professional assessment of the company 's performance, revealing company's potential and risks, showing it's past experiences and revealing future prospects.
- Company potential
- Risk indicators
- Past performance
- Future prospects
Officers
10Directors, secretaries and other appointed officers, with the period each has served.
| Person | Role | Period | Connected companies |
|---|---|---|---|
| Director | 14/05/1993–30/06/2000 | 7 | |
| Director | 14/05/1993–Present | 4 | |
| Director | 07/08/2012–30/06/2016 | 0 | |
| Director | 19/05/2017–Present | 0 | |
| Director | 21/02/2002–31/12/2013 | 0 | |
| Director | 16/12/2002–01/10/2007 | 2 | |
| Director | 22/05/2017–Present | 1 | |
| Director | 30/04/2025–Present | 2 | |
| Secretary | 30/09/1995–30/06/2000 | 1 | |
| Secretary | 01/07/2000–Present | 9 |
Persons with significant control
4Individuals or entities with significant control over the company, as declared to Companies House.
| Person | Period | Connected companies |
|---|---|---|
| 06/04/2016–Present | 2 | |
| 06/04/2016–03/12/2024 | 2 | |
| 06/04/2016–Present | 3 | |
| 03/12/2024–Present | 0 |
Filing history and recent activity
Every document on the Companies House record, newest first.
- Filings on record
- 18
- Since 01/01/1987
- Last 12 months
- 4
- -5 vs the year before
- Most recent filing
- 18/04/2026
- 5 months ago
What changed in the last year
- Confirmation statement (2)Latest 18/04/2026
- Accounts filed (2)Latest 26/11/2025
Filing timeline
- 18/04/2026View PDF (3 pages)
Replacement Filing of Confirmation Statement dated 2025-01-10
- 22/02/2026View PDF (3 pages)
Confirmation statement made on 2026-01-10 with no updates
- 26/11/2025View PDF (7 pages)
Amended total exemption full accounts made up to 2025-01-31
- 28/10/2025View PDF (8 pages)
Total exemption full accounts made up to 2025-01-31
- 02/06/2025View PDF (2 pages)
Director's details changed for Mr Mark Stewart Mckenzie on 2025-06-02
- 02/06/2025View PDF (2 pages)
Appointment of Ms Agnes Adrienn Labszki as a director on 2025-04-30
- 02/05/2025View PDF (1 pages)
Cessation of Michael John Stapleton as a person with significant control on 2024-12-03
- 02/05/2025View PDF (2 pages)
Notification of Gillian Bateman as a person with significant control on 2024-12-03
- 30/04/2025View PDF (2 pages)
Director's details changed for Mr Mark Stewart Mckenzie on 2022-07-01
- 10/01/2025View PDF (5 pages)
Confirmation statement made on 2025-01-10 with updates
- 06/01/2025View PDF (5 pages)
Confirmation statement made on 2025-01-06 with updates
- 10/12/2024View PDF (1 pages)
Termination of appointment of Michael John Stapleton as a director on 2024-12-03
Showing 12 of 18 filings
See when the next accounts and confirmation statement are due
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- Employees
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NIANDER AURORA LIMITED
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About SYSTEM SIMULATION LIMITED
A short description of the company, written from its Companies House record.
SYSTEM SIMULATION LIMITED is a private limited company registered in the United Kingdom, based in 406 Clerkenwell Workshops 27-31 Clerkenwell Close, London EC1R 0AT. Companies House classifies its business as Business and domestic software development. It has been on the register for 56 years 2 months.
The register currently records it as active. Its 2025 accounts report net assets of £460.72K and 13 employees.
SYSTEM SIMULATION LIMITED: frequently asked questions
Answered from this company's own registry record and filed figures.
Companies House records SYSTEM SIMULATION LIMITED under one registered business activity: Business and domestic software development (62.01/2 - SIC 2007).
SYSTEM SIMULATION LIMITED is recorded as active on the Companies House register, and has been on it since 28/07/1970.
The most recent accounts Okredo holds cover 2025 and report net assets of £460.72K, total assets of £864.29K, cash in bank of £742.38K and total liabilities of £403.58K.
The most recent document on the record is dated 18/04/2026: Replacement Filing of Confirmation Statement dated 2025-01-10, 5 months ago.
On the current registry record, accounts are due by 31/10/2027 and the next confirmation statement is due by 24/01/2027.
Companies House lists 10 officers (5 currently in post) and 4 people with significant control (3 current).