---
title: "TETRA TECH UK LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/ce281818-62bb-5bdf-8ca5-ea6688d7b80f
json: https://whiteintel.dev/api/public/dossier/ce281818-62bb-5bdf-8ca5-ea6688d7b80f
identifier: oo:GB-COH-12241404
jurisdiction: GB
risk: Low
source: WhiteIntel corporate-ownership graph
---

# TETRA TECH UK LIMITED

**Type:** Company  
**Jurisdiction:** [GB](https://whiteintel.dev/jurisdictions/gb)  
**Identifier:** `oo:GB-COH-12241404`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/ce281818-62bb-5bdf-8ca5-ea6688d7b80f  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/ce281818-62bb-5bdf-8ca5-ea6688d7b80f  

## Ownership & control

### Owners / controllers

- **TETRA TECH UK HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/4f9a36c4-e9d1-5705-b6f2-f29d84659c2c

### Holdings / subsidiaries

- **TETRA TECH INTERNATIONAL DEVELOPMENT EUROPE LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/d4b0eaa2-77b9-5a3c-a89c-3e2a31ceb02d
- **NDY CONSULTING LIMITED** (beneficial owner) — 100% — https://whiteintel.dev/entity/d470a644-a31f-5c1a-9bca-b627b7608b58
- **PITEAU ASSOCIATES UK LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/d8379c16-1418-53db-a1a2-e5937ba490ba
- **NDY CONSULTING LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/d470a644-a31f-5c1a-9bca-b627b7608b58
- **COFFEY GEOTECHNICS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/f3da1243-613d-5a9a-a8e5-616128b1ac27
- **HOARE LEA LLP** (beneficial owner) — https://whiteintel.dev/entity/e905ea33-6b74-53ed-af75-bd35cb5f0817
- **TETRA TECH INTERNATIONAL DEVELOPMENT EUROPE LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/d4b0eaa2-77b9-5a3c-a89c-3e2a31ceb02d

### UBO chain (walk to the ultimate owner)

A **4-step** ownership/control chain to the ultimate beneficial owner is resolved for this entity. The full cited chain unlocks with a paid API key or a one-off dossier — https://whiteintel.dev/pricing.

## Company profile (live · UK Companies House)

- **Company number:** `12241404`
- **Status:** active
- **Type:** ltd
- **Incorporated:** 2019-10-03
- **Registered office:** 101 Park Drive, Milton Park, Abingdon, Oxfordshire, OX14 4RY, England
- **SIC:** 70100

### Officers

- MURDOCH, Andrew James — secretary · appointed 2023-10-05
- GREEN, Christopher James — director · British · appointed 2024-12-16
- LEMMON, Richard Alan — director · American · appointed 2019-10-03
- HOPSON, Preston — secretary · appointed 2019-10-03 · resigned 2023-10-05
- BURDICK, Steven Michael — director · American · appointed 2019-10-03 · resigned 2025-06-30
- LOVELL, James David — director · British · appointed 2022-08-25 · resigned 2024-12-16
- ONSLOW, Keith Martin — director · British · appointed 2019-10-03 · resigned 2022-03-16
- WARD, Benjamin James — director · British · appointed 2019-10-03 · resigned 2024-03-22

### Beneficial owners (Persons with Significant Control)

- [Tetra Tech Uk Holdings Limited](https://whiteintel.dev/entity/4f9a36c4-e9d1-5705-b6f2-f29d84659c2c) — 75–100% shares · corporate PSC · England — since 2019-10-03

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/12241404
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/12241404

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **TETRA TECH UK LIMITED**. Human view: https://whiteintel.dev/entity/ce281818-62bb-5bdf-8ca5-ea6688d7b80f · Structured JSON: https://whiteintel.dev/api/public/dossier/ce281818-62bb-5bdf-8ca5-ea6688d7b80f._

_Risk levels are heuristic investigative leads, not legal determinations of beneficial ownership. Every claim carries a source; an absent edge means "not yet observed in current sources", not "does not exist"._