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Other research and experimental development on natural sciences and engineering · Reigate, Surrey
Complex Systems Engineering
Complex Systems Engineering Ltd
Private limited company registered in Reigate, classed under “Other research and experimental development on natural sciences and engineering” and 1 other activity.
Headline figures
FY to Aug 2025 · Company only
Turnover
For subscribers
Profit after tax
—
Not filed: small-company exemption
Net assets
For subscribers
Cash
For subscribers
Employees
For subscribers
History
| £ | 2021* | 2022* | 2023 | 2024* | 2025 |
|---|---|---|---|---|---|
| Profit after tax | — | ||||
| Turnover | |||||
| Net assets | |||||
| Cash | |||||
| Employees |
Every figure for all 5 years
“—” means we did not find the figure in a source; it is never filled with an estimate. * Restated: the next year's accounts printed different figures for this year, and those later figures are shown.
Balance sheet and ratios
From the filed balance sheets · £
| Balance sheet | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|
| Fixed assets | ||||
| Current assets | ||||
| Creditors due within a year | ||||
| Net current assets | ||||
| Creditors due after a year | ||||
| Net assets | ||||
| Ratios | ||||
| Profit marginProfit after tax as a share of turnover | ||||
| Return on equityProfit after tax as a share of net assets | ||||
| Current ratioCurrent assets for every £1 owed within a year | ||||
| Creditors to assetsEverything owed to creditors as a share of fixed plus current assets | ||||
| Turnover per employeeTurnover divided by average staff | ||||
6 balance-sheet lines and 5 ratios, every year
A ratio appears only for years where every line it needs was filed. Lines are as tagged in the accounts; nothing is added up or estimated.
Questions people ask
›What does Complex Systems Engineering do?
Private limited company registered in Reigate, classed under “Other research and experimental development on natural sciences and engineering” and 1 other activity.
›How much turnover does Complex Systems Engineering make?
Answered in the full report
›Is Complex Systems Engineering profitable?
Complex Systems Engineering's profit isn't public: small companies may file without a profit and loss account.
›How many people work at Complex Systems Engineering?
Answered in the full report
›Where is Complex Systems Engineering based?
Its registered office is Lonesome Farm, Lonesome Lane, Reigate, Surrey, RH2 7QT, in Reigate, Surrey.
›When was Complex Systems Engineering founded?
Complex Systems Engineering Ltd was incorporated on 12 August 2003.
›Is Complex Systems Engineering still trading?
The register lists Complex Systems Engineering Ltd as active.