---
title: "ENERGY, SECURITY AND TECHNOLOGY UK LIMITED — Ownership Dossier"
canonical: https://whiteintel.dev/entity/f13f53bb-bac9-52a1-a2c1-9f0c832850b8
json: https://whiteintel.dev/api/public/dossier/f13f53bb-bac9-52a1-a2c1-9f0c832850b8
identifier: oo:GB-COH-15475788
risk: Low
source: WhiteIntel corporate-ownership graph
---

# ENERGY, SECURITY AND TECHNOLOGY UK LIMITED

**Type:** Company  
**Identifier:** `oo:GB-COH-15475788`  
**Risk level:** Low  
**Canonical dossier:** https://whiteintel.dev/entity/f13f53bb-bac9-52a1-a2c1-9f0c832850b8  
**Structured JSON / MCP:** https://whiteintel.dev/api/public/dossier/f13f53bb-bac9-52a1-a2c1-9f0c832850b8  

## Ownership & control

### Owners / controllers

- **CH2M HILL HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/cd9e2f9b-d577-5f7a-8562-de866d329414
- **JACOBS U.K. LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/3ecd06f3-6c7a-5b2f-9a48-ba182e9319b9
- **Jacobs Nl Holdings B.V.** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/b2247dbe-1677-4e2b-ab2f-2c58ff5f2203
- **Jacobs Engineering Inc.** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/8eccc1d6-7d05-4e0c-852d-5995cb7c005c
- **Jacobs Engineering Group Inc** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/24277153-b8c6-4dc8-94cf-c2978d153c34
- **Amentum Holdings Llc** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/5355082c-4b0c-4072-833d-9b99dea7e456
- **Amazon Holdco Inc.** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/7e255e68-c221-44b0-94a0-fd60ef5137dd
- **JACOBS UK HOLDINGS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/81d6f2e3-2bba-58e6-b24e-99f54793c88d
- **JACOBS EUROPE HOLDCO LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/113d2475-caa6-57da-afe4-3fb59f833aa1

### Holdings / subsidiaries

- **NATIONAL NUCLEAR CORPORATION LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/2251df16-a49f-5ab9-b143-0895d8ffb747
- **ENERGY, SAFETY AND RISK CONSULTANTS (UK) LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/e6efc4be-124d-552d-b637-88e2632cc41c
- **AMENTUM E&C LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/342e4d6d-e0db-5c82-8857-4ddcd5030d79
- **AMENTUM ENTERPRISE ASSET SOLUTIONS LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/3391c0cf-cc9d-54f9-b346-5ca713b4b3b1
- **AMENTUM ENTERPRISE ASSET SOLUTIONS CONSTRUCTION LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/ee7e00f4-27c2-54a2-b5d7-18db759960f8
- **AMENTUM INTERNATIONAL NUCLEAR SERVICES LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/7f3596bb-c318-5793-9a40-b90edc41ed1f
- **AMENTUM CLEAN ENERGY LIMITED** (beneficial owner) — 87.5% — https://whiteintel.dev/entity/e1e3efdf-c6e6-5d39-93c0-dbd809ddb114

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

A **18-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.

## Provenance

- OpenOwnership — https://find-and-update.company-information.service.gov.uk/company/15475788
- companies_house_bulk — https://find-and-update.company-information.service.gov.uk/company/15475788

## Get the full, resolved dossier (agent-callable)

The above is the free teaser. The resolved **multi-hop UBO chain**, ownership **%**, full **financial history**, itemised **assets** and the hop-by-hop **exposure path** are the paid depth — callable as tools from your agent:

```bash
npx -y @whiteintel/mcp-server   # then: get_dossier · trace_ownership_path · check_offshore_exposure
```

Or unlock a one-off cited dossier for **ENERGY, SECURITY AND TECHNOLOGY UK LIMITED** — https://whiteintel.dev/entity/f13f53bb-bac9-52a1-a2c1-9f0c832850b8 · pricing https://whiteintel.dev/pricing.

---

_This is the markdown-for-agents view of the WhiteIntel dossier for **ENERGY, SECURITY AND TECHNOLOGY UK LIMITED**. Human view: https://whiteintel.dev/entity/f13f53bb-bac9-52a1-a2c1-9f0c832850b8 · Structured JSON: https://whiteintel.dev/api/public/dossier/f13f53bb-bac9-52a1-a2c1-9f0c832850b8._

_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"._