AMENTUM INTERNATIONAL NUCLEAR SERVICES LIMITED
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Next accounts due
2026-06-30 (in 1mo)
Last filed for 2024-09-27
Confirmation statement due
2026-09-05 (in 4mo)
Last made up 2025-08-22
Watchouts
Cash
£5M
+62.9% vs 2023
Net assets
£4M
-90.8% vs 2023
Employees
46
-16.4% vs 2023
Profit before tax
£2M
+51.4% vs 2023
Watchouts
Facts from the Companies House register and the latest accounts — not a rating
-
1 PSC ceased in last 24 months
Significant control changed hands — see the Ownership section.
Name history
Renamed 1 time since incorporation
- AMENTUM INTERNATIONAL NUCLEAR SERVICES LIMITED 2024-09-30 → present
- CH2M HILL INTERNATIONAL NUCLEAR SERVICES LTD 2005-08-10 → 2024-09-30
Net assets
2-year trend · vs Industrials median
Accounts
2-year trend · latest reflected 2024-09-27
| Metric | Trend | 2023-09-29 | 2024-09-27 |
|---|---|---|---|
| Turnover | £20,675,000 | £16,972,000 | |
| Operating profit | -£948,000 | £572,000 | |
| Profit before tax | £1,104,000 | £1,671,000 | |
| Net profit | £859,000 | £1,307,000 | |
| Cash | £2,847,000 | £4,639,000 | |
| Total assets less current liabilities | £47,770,000 | £4,394,000 | |
| Net assets | £47,770,000 | £4,394,000 | |
| Equity | £47,770,000 | £4,394,000 | |
| Average employees | 55 | 46 | |
| Wages | £4,484,000 | £4,093,000 |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-09-29 | 2024-09-27 |
|---|---|---|---|
| Operating margin | -4.6% | 3.4% | |
| Net margin | 4.2% | 7.7% | |
| Return on capital employed | -2.0% | 13.0% | |
| Current ratio | 13.07x | 2.84x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Audit & accounting basis
- Accounting basis
- FRS 102
- Reporting scope
- Standalone (parent only)
- Auditor
- Ernst & Young LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“If the Company requires assistance to meet its financial obligations, Amentum Holdings LLC would be able to provide support to the Company. The Directors have received a letter of support from Amentum Holdings LLC, confirming it will be able to provide support to the Company, if needed, until 30 April 2027 in order to allow the Company to operate as a going concern.”
Group structure
- AMENTUM INTERNATIONAL NUCLEAR SERVICES LIMITED · parent
- Cavendish Dounreay Partnership Ltd 30%
Significant events
- “On 30 September 2024, the Company changed its name from CH2M Hill International Nuclear Services Limited to Amentum International Nuclear Services Limited.”
- “On March 7, 2024, the directors undertook a share capital reduction by way of a solvency statement and passed a special resolution in accordance with Section 641 of the Companies Act 2006. Accordingly, the Company has reduced the nominal value of each of its 12,845,244 allotted shares from £1 to £0.0845244 per share, and credited the profit and loss reserves by £11,759,507.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
2 active · 35 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| PRENTICE, Joshua David | Secretary | 2024-06-01 | — | — |
| SHAW, Martin Warwick | Director | 2024-11-07 | Sep 1967 | British |
Show 35 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BRYSON MCLEAN, Margaret | Secretary | 2005-08-10 | 2012-05-15 |
| CHAUDHARY, Tejender Singh, Mr | Secretary | 2014-07-14 | 2023-02-10 |
| HOLMAN, Rhona Mary | Secretary | 2023-02-10 | 2023-08-21 |
| ROBERTS, Geoffrey | Secretary | 2023-08-21 | 2024-06-01 |
| WRIGHT, Beverley Ann | Secretary | 2012-05-15 | 2014-06-26 |
| SWIFT INCORPORATIONS LIMITED | Corporate Nominee Secretary | 2005-08-10 | 2005-08-10 |
| BAKER, Jonathan | Director | 2011-05-03 | 2017-12-31 |
| BENJAMIN, Jeffrey | Director | 2007-05-08 | 2008-05-06 |
| CARD, Robert G. | Director | 2008-11-10 | 2010-05-15 |
| CARD, Robert Gordon | Director | 2005-08-10 | 2006-09-27 |
| DEHN, William, Mr. | Director | 2008-05-06 | 2008-11-10 |
| EBBEN, Michael Denis | Director | 2005-08-10 | 2008-05-06 |
| ELLIS, David | Director | 2018-03-21 | 2020-12-09 |
| FALLON, Mark Dean | Director | 2011-05-03 | 2014-07-14 |
| FOWLER, Jonathan Paul | Director | 2025-05-07 | 2026-04-21 |
| HAMER, Benjamin Alexander | Director | 2018-01-29 | 2019-06-03 |
| HANNIS, Samuel James, Mr | Director | 2017-02-03 | 2019-06-03 |
| HARBERT, Richard Ray | Director | 2005-08-10 | 2006-09-27 |
| IAPALUCCI, Samuel Herman | Director | 2006-09-27 | 2008-11-10 |
| IOTTI, Robert Charles | Director | 2005-08-10 | 2006-05-09 |
| LINSEISEN, Anita | Director | 2021-12-01 | 2024-11-07 |
| LUTWYCHE, Peter Robert | Director | 2019-06-03 | 2020-11-30 |
| MCINTIRE, Lee A | Director | 2008-05-06 | 2014-01-01 |
| MCKELVY, Michael Ellis | Director | 2010-07-26 | 2014-05-30 |
| MILES, Sally Linda Joyce | Director | 2019-06-03 | 2021-12-01 |
| POLCYN, John | Director | 2006-09-27 | 2008-05-06 |
| RENGEL, Michael James | Director | 2006-09-27 | 2008-05-06 |
| ROBERSON, Jessie | Director | 2006-11-05 | 2007-04-23 |
| SANTEE, Melanie Catherine | Director | 2008-11-10 | 2011-05-03 |
| SHELTON, Brian R | Director | 2017-02-03 | 2018-01-29 |
| THURSTON, Mark John | Director | 2014-07-14 | 2017-02-03 |
| TUOR, Nancy Rai | Director | 2005-08-10 | 2008-05-06 |
| WHITE, Clive Thomas | Director | 2020-11-30 | 2021-08-16 |
| WIEMELT, Karen | Director | 2021-08-16 | 2024-01-12 |
| INSTANT COMPANIES LIMITED | Corporate Nominee Director | 2005-08-10 | 2005-08-10 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Energy, Security And Technology Uk Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2024-06-05 | Active |
| Ch2m Hill Holdings Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2020-07-14 | Ceased 2024-06-05 |
Filing timeline
Last 20 of 141 total filings
Material constitutional events — rename, articles re-file, resolution
- 2024-09-30 CERTNM Certificate change of name company PDF
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-04-21 | TM01 | officers | Termination director company with name termination date | |
| 2026-04-18 | AA | accounts | Accounts with accounts type full | |
| 2025-12-03 | DISS40 | gazette | Gazette filings brought up to date | |
| 2025-12-02 | GAZ1 | gazette | Gazette notice compulsory | |
| 2025-09-11 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-05-08 | AP01 | officers | Appoint person director company with name date | |
| 2024-11-11 | AD01 | address | Change registered office address company with date old address new address | |
| 2024-11-07 | TM01 | officers | Termination director company with name termination date | |
| 2024-11-07 | AP01 | officers | Appoint person director company with name date | |
| 2024-09-30 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2024-09-30 | CERTNM | change-of-name | Certificate change of name company | |
| 2024-09-23 | AD01 | address | Change registered office address company with date old address new address | |
| 2024-08-30 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-07-09 | AA | accounts | Accounts with accounts type full | |
| 2024-07-02 | PSC02 | persons-with-significant-control | Notification of a person with significant control | |
| 2024-07-02 | PSC07 | persons-with-significant-control | Cessation of a person with significant control | |
| 2024-06-05 | TM02 | officers | Termination secretary company with name termination date | |
| 2024-06-03 | AP03 | officers | Appoint person secretary company with name date | |
| 2024-03-08 | SH19 | capital | Capital statement capital company with date currency figure | |
| 2024-03-08 | SH20 | capital | Legacy |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 6
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 1
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.
Year-on-year
FY2023 → FY2024 · period ending 2024-09-27 vs 2023-09-29
-
Turnover
-17.9%
£20,675,000 £16,972,000
-
Cash
+62.9%
£2,847,000 £4,639,000
-
Net assets
-90.8%
£47,770,000 £4,394,000
-
Employees
-16.4%
55 46
-
Operating profit
+160.3%
-£948,000 £572,000
-
Profit before tax
+51.4%
£1,104,000 £1,671,000
-
Wages
-8.7%
£4,484,000 £4,093,000
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers