TXT In plain English
Company description
AMENTUM (UK) LTD. is a UK company whose Companies House status is “Active” and whose registered company type is “Private Limited Company”. Incorporated on 19 January 2000; registered for 26 years; registered office reported in WARRINGTON, UNITED KINGDOM. Its primary declared activity is 39000 · Remediation activities and other waste management services.
This BritDB profile also contains linked public records: 3 PSC records. This description is assembled from public data, is not a reliability assessment, and should be checked against the cited sources before a legally significant decision.
Web facts are never added from a name match alone. Internet enrichment requires the exact Companies House ID in Wikidata, and ambiguous results are excluded.
01 Company overview
Identity and registration
- Official name
- AMENTUM (UK) LTD.
- Company number
- 03909808
- Company type
- Private Limited Company
- Status
- Active
- Country of origin
- United Kingdom
- Dissolution date
- Not supplied
- Accounts category
- FULL
- Mortgage charges
- 0 total · 0 outstanding · 0 satisfied
- Limited partnership members
- 0 general · 0 limited
A registered office is not necessarily a trading location. The address is reproduced from the Companies House bulk record and should be interpreted in that legal context.
02 Filing dates
Accounts and statements
Last accounts made up to
27 September 2024Next accounts due
30 September 2026Last statement made up to
26 July 2025Next statement due
9 August 2026BritDB does not infer overdue status when the source does not state it.
03 Workforce reporting
Gender pay gap
- Median bonus gap
- 19.0%
- Mean bonus gap
- 34.0%
- Women receiving bonus
- 27.1%
- Men receiving bonus
- 49.5%
- Women in top quartile
- 14.9%
- Women in upper middle quartile
- 15.2%
- Women in lower middle quartile
- 23.9%
- Women in lower quartile
- 50.7%
Earlier reporting years (1)
- 250 to 49944.7% median hourly gap
Positive gaps mean men were paid more; negative gaps mean women were paid more. These figures are employer-reported and describe the workforce distribution, not equal pay for the same job. The company link uses the exact Companies House number supplied by the service.
04 Supplier payments
Payment practices and performance
- Reporting period
- 1 April 2024 – 30 September 2024
- Filed
- 29 October 2024
- Shortest standard term
- 30 days
- Longest standard term
- 45 days
- E-invoicing offered
- No
- Supply-chain finance
- Not offered
- Payment codes
- Prompt Payment Code
- Construction retentions
- No qualifying construction contracts
Complete reported payment fields
- Policy regime
- Regime-1
- Financial period started
- Not supplied
- Qualifying contracts
- Yes
- Payments made
- Yes
- Invoice value paid outside agreed terms
- £0
- Invoices paid in 31–60 days
- 10.0%
- Invoices unpaid due to dispute
- 0.0%
- Maximum contractual payment period
- 45 days
- Supplier-list charging policy
- No
- Supplier-list charges made
- No
Maximum contractual payment information
In a small number of cases (for US based suppliers) the supplier specified 45 day terms in the quotation.
Reported terms and dispute process
- Standard payment terms
All of our contracts with suppliers have payment terms of not more than 30 days and, typically, monthly or milestone invoicing. In certain
circumstances (eg for some sole trader firms) when requested we have agreed shorter payment periods or weekly invoicing to alleviate
cash issues for the supplier - Other payment-term information
N/A
- Dispute resolution process
If any dispute or difference arises between Seller and Buyer under or in connection with this Agreement, it shall in the first instance be referred to Buyer’s authorised representative and
Seller’s authorised representative both of who shall meet in an attempt to resolve such dispute or difference by negotiation.
If the dispute or difference shall not have been resolved within 28 days following referral to Buyer’s authorised representative and Seller’s authorised representative for resolution,
the parties may by agreement refer the dispute or difference to mediation if the matter is suitable for resolution by mediation.
Until the earlier of
(i) such date as Seller’s authorised representative and Buyer’s authorised representative determine that they cannot resolve the dispute or difference by negotiation, or
(ii) the date 30 days after the dispute or difference was first referred to mediation for resolution, neither party may commence any arbitration procedures in accordance with this Agreement.
Either party may refer any dispute or difference arising out of or in connection with this Agreement to a sole arbitrator to be agreed and appointed by the parties or, failing such agreement
within 7 days of a request by either party to appoint an arbitrator, by the President or the Vice President of the Chartered Institute of Arbitrators at the request of either party.
Earlier payment reports (1 shown)
- 23.0 average days to pay30.0% outside terms
This is a company-submitted statutory disclosure, not a credit rating. BritDB preserves the reporting period and links the report only through the Companies House number supplied by the official service. Percentages describe payments made during that period and may change in later reports.
05 Ownership and control
People with significant control
Amentum International Holdings Uk Ltd
- Owns 75% or more of shares
- Controls 75% or more of voting rights
- Can appoint or remove directors
- Country registered
- England
- Legal authority
- English
- Legal form
- Llc
- Place registered
- English
- Registration number
- 530311
- Notified
- 3 February 2020
Amentum N&E Uk Limited
- Owns 75% or more of shares
- Country registered
- Jersey
- Legal authority
- The Companies (Jersey) Law 1991
- Legal form
- Limited Company
- Place registered
- Jersey
- Registration number
- 130817
- Notified
- 3 February 2020
- Ceased
- 28 March 2022
Aecom International Holdings Uk Limited
- Owns 75% or more of shares
- Controls 75% or more of voting rights
- Country registered
- England & Wales
- Legal authority
- Companies Act 2006, Uk (England & Wales)
- Legal form
- Private Company Limited By Shares
- Place registered
- Companies House
- Registration number
- 00530311
- Notified
- 6 April 2016
- Ceased
- 30 January 2020
PSC records are company-filed public-register information. When the exact same displayed individual name occurs at multiple companies, BritDB offers a non-indexed cross-reference page. It is a name match only, not proof that the records describe the same person. Service addresses and partial dates of birth are deliberately omitted.
06 Charity register
Charity Commission links
No exact company-number link in this snapshot
The Charity Commission extract did not explicitly associate this Companies House number with a charity. BritDB does not use a name-only match to fill the gap.
This company-level check covers the Charity Commission for England and Wales. Links are accepted only when the official extract supplies this exact company registration number. Scottish charities now have separate OSCR profiles, but OSCR’s bulk fields do not provide a Companies House number, so BritDB does not infer a company link.
07 Northern Ireland charity register
CCNI exact company links
No unambiguous company-number link found
The CCNI source number did not resolve uniquely to this Companies House record. BritDB did not use a name or address match.
CCNI publishes company numbers without a jurisdiction prefix. BritDB links only when the plausible padded UK and NI candidates resolve to exactly one Companies House company.
08 Sanctions screening
UK Sanctions List
No exact business-registration-number link found
The imported UK Sanctions List did not supply this Companies House number as a UK-linked business identifier. BritDB did not attempt a name-only match.
No exact link is not sanctions clearance. UK restrictions can apply through ownership or control even where an entity is not separately named. Always use the current official list and obtain appropriate advice for a legally significant decision.
09 Public procurement
Find a Tender links
No exact GB-COH link in this snapshot
Find a Tender did not explicitly identify this Companies House number in a procurement party. BritDB did not attempt a name-only match.
These links use only the GB-COH identifier supplied in the procurement record. A company may have other public-sector work that is absent, older, below publication thresholds or published without a Companies House identifier.
10 Environmental register
Environment Agency waste registrations
No exact company-number registration linked
The licensed Environment Agency subset did not contain this exact Companies House number. BritDB did not attempt a name-only match.
This is a privacy-reduced, exact-company subset. The full official register also includes sole traders and applicants without a matching Companies House number. Check the current Environment Agency register before relying on registration status.
11 Nature of business
Standard Industrial Classification
12 Connected public record
Checks beyond the company register
Charity Commission
0 exact company-number links.
Northern Ireland charities
0 unambiguous company-number links.
Public contracts
0 procurement processes linked by exact GB-COH identifier.
Waste register
0 exact company-number registrations.
Corporate notices
The Gazette is not yet connected.
UK Sanctions List
No exact business-registration-number link in this report.
A checked source with no exact link is not a clean bill of health. Unchecked sources remain unknown, while sanctions may also apply through ownership or control of a listed person or entity.
13 Record timeline
Dates in the bulk record
- Confirmation statement
Latest confirmation statement made up to this date
- Accounts
Latest accounts made up to this date
- Company name
Previous name: AECOM E&C UK LIMITED
- Company name
Previous name: URS E&C UK LIMITED
- Company name
Previous name: WASHINGTON E & C LIMITED
- Incorporation
Company incorporated
14 Provenance
Sources for this profile
Identity, address, status, dates, SIC, previous names and mortgage totals.
Annual employer reports linked by the exact source-supplied Companies House number.
Statutory supplier-payment reports linked by the exact source-supplied Companies House number.
Current and ceased significant-control records joined by exact company number.
Daily England and Wales extract matched only by the official company registration number.
Daily CCNI export with company links only where the source number resolves unambiguously.
Complete FCDO list checked by exact UK-linked business registration number.
Procurement parties checked only through exact GB-COH identifiers.
Licensed subset linked only by exact Companies House number.
Financial regulation and licences.
Companies House, Charity Commission, OSCR and UK Sanctions List information is public-register data. BritDB reproduces and organises it with source-specific limits; official external links are kept on the dedicated source pages.