At a glance · for buyers and watchdogs
Amentum Clean Energy Limited has won £938.4m across 27 public-sector buyers, with 55 live contracts. No active Companies House risk flags.
Why: top buyer Sellafield Limited at 62% · 13% in Architecture & engineering · 0 active risk flags · 0 modifications.
ESG & policies vault · 0/5
Key governance & sustainability policies. Published documents link out; missing ones are greyed.
Capabilities
What this supplier does, where they sit, who they sell to.
Extracted automatically from amentum.com on Jul 2026. Not independently verified — treat as the supplier’s own marketing claims.
Case studies
Delivery stories the supplier has published, with sector and outcome.
No case studies yet
Once a claimed supplier publishes delivery stories — the buyer, the sector, what was delivered and the outcome — they appear here.
Buyer references
Named public-sector contacts who have agreed to act as a reference.
No buyer references yet
Public-sector buyers can confirm they'll act as a reference for this supplier. Confirmed references — with the contract they relate to — show here.
Accreditations & memberships
Independently issued. Verification dates cross-checked against issuer registers.
No accreditations recorded
B-Corp, ISO, Cyber Essentials, Living Wage and similar credentials appear here once added by a claimed supplier and cross-checked against the issuing register.
KPI performance
Delivery, budget and satisfaction scores reported quarterly by buyers.
No verified KPI scores yet
Once buyers report contract KPIs — delivery on time, on budget, satisfaction, adoption and accessibility — a weighted grade and breakdown appear here.
Contracts · 55 live · 38 historic
Pulled from Contracts Finder & Find a Tender. Most recent first.
| Title | Buyer | CPV | Awarded | Value | Term | Status |
|---|---|---|---|---|---|---|
| Sellafield Limited | 98391000 | 23 Jun 2026 | £185k | 12 mo | Live | |
| nuclear waster services | 73110000 | 11 Jun 2026 | £10k | 10 mo | Live | |
| Sellafield Limited | 90700000 | 01 Jun 2026 | £2.0m | 9 yrs | Live | |
| nuclear waster services | 73110000 | 29 May 2026 | £20k | — | Closed | |
| NRS Dounreay | 71500000 | 20 May 2026 | £94k | 7 mo | Live | |
| Sellafield Limited | 98391000 | 05 May 2026 | £153k | 6 mo | Live | |
| nuclear waster services | 90521000 | 01 May 2026 | £1.3m | 12 mo | Live | |
| BLUELIGHT COMMERCIAL LIMITED | — | 22 May 2026 | £8.0m | 8 yrs | pending | |
| DIO, Defence Infrastructure Organisation (DIO) | 71356300 | 23 Apr 2026 | £4.5m | 3 yrs | Live | |
| Sellafield Limited | 98391000 | 14 Apr 2026 | £484k | 2 yrs | Live |
Top buyers · 27 buyers · top 3 = 97%
Share of awarded value. Concentration fires above 40% for any single buyer.
Category mix
CPV-division share of last-12m awarded value.
Geography
Distribution of awarded value by buyer region.
Peers
Suppliers with overlapping CPVs & buyers (last 24m). Amentum Clean Energy Limited highlighted.
| Supplier | SME? | Awarded · 24m | Contracts |
|---|---|---|---|
AC Amentum Clean Energy Limited | No | £934.8m | — |
| No | £140.0m | 1 | |
| Yes | £35.4m | 2 | |
| No | £28.1m | 2 | |
| No | £24.4m | 4 | |
| No | £18.8m | 2 |
Red flags · 0 active
Automated scan of Companies House status, charges and insolvency records.
Compliance scorecard
Derived from Companies House filings — not a full supplier-assurance check.
Modifications
Variations to awarded contracts logged under Procurement Act 2023 s.74.
No modifications recorded
No published contract variations for this supplier. Modification notices appear here as they are issued under the Procurement Act 2023.
News mentions
UK trade press & nationals, matched to this supplier.
No news mentions found
We haven't matched any recent UK press coverage to this supplier. Mentions appear here automatically as they're published.
Companies House
Live sync — registered details, directors, PSC and SIC codes.
Registered details
- Company no.
- 01120437
- Status
- Active
- Type
- Private limited
- Incorporated
- 28 Jun 1973
- Reg. office
- 305 Bridgewater Place, Birchwood Park, Warrington, WA3 6XF
- SIC codes
- 42220 · 71121 · 71122 · 71200
- Last accounts
- 27 Sept 2024
- Next accounts due
- 30 Jun 2026
Directors & PSC
- LAMB, James Michael — directorAppointed 27 Apr 2026
- JONES, Loren Michael — directorAppointed 01 Oct 2025
- SHAW, Martin Warwick — directorAppointed 06 Dec 2024
- PRENTICE, Joshua David — secretaryAppointed 01 Jun 2024
- Energy, Security And Technology Uk Limited — person with significant controlownership of shares 75 to 100 percent · voting rights 75 to 100 percent · right to appoint and remove directors
Financial
Filed accounts from Companies House.
No financial filings on record
Turnover, profit and headcount appear here once audited or micro-entity accounts are filed at Companies House.
Org tree
Group structure and ownership.
Independent. No parent company or subsidiaries recorded at Companies House for this entity.
Social value
Commitments mapped to the Government Social Value Model themes.
No social-value commitments yet
Jobs, skills, environmental, inequality and community commitments appear here once a claimed supplier attributes them to awarded contracts, or once we detect them on the supplier’s website.