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Private limited company registered in Abingdon, classed under “Activities of head offices”.
Headline figures
FY to Sept 2025 · Company only
Turnover
For subscribers
Profit after tax
£13.6m
Net assets
For subscribers
Cash
For subscribers
Employees
For subscribers
Retained reserves
For subscribers
What the numbers say
4 findings from the figures, in plain English
Written by rules from the figures on this page. Not a forecast or a credit opinion.
History
| £ | 2021 | 2022* | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Profit after tax | £13.6m | ||||
| Turnover | |||||
| Net assets | |||||
| Cash | |||||
| Employees | |||||
| Retained reserves |
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 | ||||
| of which debtors | ||||
| of which cash | ||||
| Creditors due within a year | ||||
| Net current assets | ||||
| 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 | ||||
| Cash ratioCash 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 | ||||
| Debtor daysDays of turnover owed by customers at the year end | ||||
7 balance-sheet lines and 7 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 Tetra Tech UK do?
Private limited company registered in Abingdon, classed under “Activities of head offices”.
›How much turnover does Tetra Tech UK make?
Answered in the full report
›Is Tetra Tech UK profitable?
Yes: it made a profit after tax of £13.6m in the year to 28 September 2025, its latest filed accounts.
›How many people work at Tetra Tech UK?
Answered in the full report
›Where is Tetra Tech UK based?
Its registered office is 101 Park Drive, Milton Park, Abingdon, Oxfordshire, OX14 4RY, in Abingdon, Oxfordshire.
›When was Tetra Tech UK founded?
Tetra Tech UK Limited was incorporated on 3 October 2019.
›Is Tetra Tech UK still trading?
The register lists Tetra Tech UK Limited as active.