TETRA TECH LIMITED
Company details
- Registered name
- TETRA TECH LIMITED
- Company number
- 01959704
- Registered office
- 3 SOVEREIGN SQUARE, SOVEREIGN STREET, LEEDS, LS1 4ER, ENGLAND
- Company type
- Private Limited Company
- Incorporated on
- 15 November 1985
- Status
- Active
- Age
- 40 years
- Previous names
- WYG ENGINEERING LIMITED (to 30 Dec 2020) · WHITE YOUNG GREEN CONSULTING LIMITED (to 30 Dec 2020)
- Nature of business (SIC)
- 71129 — Other engineering activities
- Accounts — next due
- 30 Jun 2027
- Accounts — last made up to
- 28 Sept 2025
- Confirmation statement — next due
- 29 Nov 2026
- Confirmation statement — last
- 15 Nov 2025
What the register says
Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.
- A person with significant control here also controls 3 other companies.
Companies House register snapshot, read 02/09/2026.
People with significant control
Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors
Corporate structure
Who controls this company, and who they control in turn
Connections
Change history
Reconstructed from the dated records Companies House publishes
| Date | Change | Was | Now |
|---|---|---|---|
| 30/12/2020 | Registered name changed | WHITE YOUNG GREEN CONSULTING LIMITED | WYG ENGINEERING LIMITED |
| 30/12/2020 | Registered name changed | WYG ENGINEERING LIMITED | TETRA TECH LIMITED |
| 06/04/2016 | Person with significant control added | — | Tetra Tech Group Limited |
Documents for TETRA TECH LIMITED
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The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.
Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.
Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.
Data protection register
Registered with the Information Commissioner's Office as a data protection fee payer.
The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.
Get this company via API
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About TETRA TECH LIMITED (01959704)
TETRA TECH LIMITED is a private limited company incorporated on 15 November 1985 and registered in the United Kingdom under company number 01959704. Its registered office is at 3 SOVEREIGN SQUARE, SOVEREIGN STREET, LEEDS, LS1 4ER, ENGLAND. The recorded nature of business is other engineering activities (SIC 71129). The company is currently active , with statutory accounts last made up to 28 September 2025. , and the person with significant control is Tetra Tech Group Limited. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.
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