TETRA TECH LIMITED
Company number 01959704 · Monitor this company
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Overview
- Company type
- Private Limited Company
- Incorporated
- 1985-11-15
- Registered office
- 3 Sovereign Square, Sovereign Street, Leeds, England, LS1 4ER
- Postcode
- LS1 4ER
- Capital
- 85,300 GBP
- Accounts category
- Full
- Charges
- 3 outstanding
Accounts
- Last made up to
- 2025-09-28
- Next due by
- 2027-06-30
- Financial year end
- 30 September
Confirmation statement
- Last statement dated
- 2025-11-15
- Next due by
- 2026-11-29
Nature of business (SIC)
- 71129 Other engineering activities
Officers 4 current · 68 resigned
Group structure 10 subsidiaries
Controlled by TETRA TECH GROUP LIMITED — since 2016-04-06
-
WHITE YOUNG GREEN LIMITED Dissolved
-
WHITE YOUNG TRUSTEE LIMITED Dissolved
-
WYG 22 LIMITED Dissolved
-
WYNTHOMASGORDONLEWIS LIMITED Dissolved
From persons-with-significant-control filings on the public register.
Public contracts won 66
£1,927,444,352 total awarded value where published.
Showing the 5 most recent of 66.
Contains public sector information licensed under the Open Government Licence v3.0 (Contracts Finder).
Modern slavery statement
Registered a modern slavery statement for 2026 (period to 2025-09-30) as part of the TETRA TECH UK HOLDINGS LIMITED group statement — 2 years on the registry.
Read the statement summary on the government modern slavery statement registry. Contains public sector information licensed under the Open Government Licence v3.0.
Data protection registration
Registered with the ICO as a data protection fee payer — Z625690X (Tier 3), registered since 2002.
Information Commissioner's Office register of fee payers, licensed under the Open Government Licence.
Political donations 1
£7,500 in registered political donations since 2023.
-
Mr John Stevenson MP
Source: the Electoral Commission's register of donations — this company's full record, Open Government Licence v3.0.
Gender pay gap
25.29%
Women's median hourly pay below men's, 2025/26 · in the bottom quarter for parity
Contact details
- Website
- wyg.com
- Phone
- 029 104.971
Tetra Tech is a leading technical, engineering, and environmental consultancy. Our experts deliver data-driven, market-leading solutions to public and private sector clients across the UK and Europe.
Previous company names
| Name | Date changed |
|---|---|
| WYG ENGINEERING LIMITED | 2020-12-30 |
| WHITE YOUNG GREEN CONSULTING LIMITED | 2008-07-01 |
| WHITE YOUNG CONSULTING GROUP LIMITED | 1998-01-05 |
| WHITE YOUNG LIMITED | 1986-02-07 |
| BROXMILL LIMITED | 1985-12-20 |
Previous registered addresses 3
| Address | Changed on |
|---|---|
| ARNDALE COURT OTLEY ROAD, HEADINGLEY, LEEDS, LS6 2UJ | 2019-08-06 |
| 3 SOVEREIGN SQUARE SOVEREIGN STREET, LEEDS, LS1 4ER, ENGLAND | 2019-08-06 |
| ARNDALE COURT, HEADINGLEY, LEEDS, LS6 2UJ | 2010-05-14 |
Among its peers
Among the oldest 25%
of 260 similar companies in LS, trading since 1985
The class of 1985
49%
of the 15,386 companies incorporated in 1985 are still active today; 42% have since been dissolved.
A fact about the year, not a forecast for this company.
Property in England & Wales 4 titles
- Leasehold
- 4
- Most recent registration
- 2024-12-20
- Where
- Cardiff (1), Leicester (1), Tyne And Wear (1)
| Title number | County | Tenure | Registered | Price paid |
|---|---|---|---|---|
| CYM900439 | Cardiff | Leasehold | 2024-12-20 | — |
| LT537134 | Leicester | Leasehold | 2022-04-12 | — |
| TY475974 | Tyne And Wear | Leasehold | 2008-12-09 | — |
| LT373735 | Leicestershire | Leasehold | 2005-03-11 | — |
For addresses and the authoritative register entry, use HM Land Registry's official search (£3 per title).
Information produced by HM Land Registry. © Crown copyright 2026. Dataset as at 2026-08.