MIRION TECHNOLOGIES (HOLDINGREP), LTD.
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2026-11-20 (in 6mo)
Last made up 2025-11-06
Watchouts
Cash
£2K
+415.4% vs 2023
Net assets
£531M
+9.6% vs 2023
Employees
0
Average over period
Profit before tax
£51M
+22,281,518.2% 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
- MIRION TECHNOLOGIES (HOLDINGREP), LTD. 2015-01-19 → present
- HEISENBERG UK3 LIMITED 2014-11-06 → 2015-01-19
Net assets
2-year trend · vs Industrials median
Accounts
2-year trend · latest reflected 2024-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Turnover | — | — | |
| Operating profit | — | — | |
| Profit before tax | -£231 | £51,470,076 | |
| Net profit | -£231 | £51,470,076 | |
| Cash | £423 | £2,180 | |
| Total assets less current liabilities | £484,128,690 | £531,967,463 | |
| Net assets | £483,918,833 | £530,516,592 | |
| Equity | £483,918,833 | £530,516,592 | |
| Average employees | 0 | 0 | |
| Wages | — | — |
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 | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Gearing (liabilities / total assets) | 0.0% | 0.3% |
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
- Grant Thornton UK LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“At the time of approving the financial statements, the directors have a reasonable expectation that, with the support of the ultimate parent company, the company has adequate resources to continue in operational existence for the 12 months from the balance sheet date. Thus, the director continues to adopt the going concern basis of accounting in preparing the financial statements.”
Group structure
- MIRION TECHNOLOGIES (HOLDINGREP), LTD. · parent
- Mirion Technologies (Global), Ltd 100%
- Mirion Technologies (Germany) GmbH 100%
- Mirion Technologies (MGPI H&B) GmbH 100%
- Mirion Technologies (Canberra) GmbH 100%
- Mirion Medical GmbH 100%
- Mirion Technologies (Selmic) Oy 100%
- Mirion Technologies Selmic Baltic OU 100%
- Mirion Technologies (IST) Limited 100%
- Mirion Technologies (France) SAS 100%
- Mirion Technologies (Canberra) SAS 100%
- Mirion Technologies (MGPI) SAS 100%
- Mirion Technologies (Premium Analyse) SAS 100%
- Mirion Technologies (RADOS) Oy 100%
- Mirion Technologies (Dosimetry Services) B.V. 100%
- Mirion Technologies (IST Canada) ULC 100%
- Mirion Technologies (Canberra BNLS) NV 99%
- Mirion Technologies (HK) Limited 100%
- Mirion Commercial (Beijing) Co., Ltd 100%
- Mirion Technologies (IST France) SAS 100%
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
2 active · 6 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| A G SECRETARIAL LIMITED | Corporate Secretary | 2021-10-21 | — | — |
| COCKS, James Francis Charles | Director | 2018-08-28 | Dec 1971 | British |
Show 6 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| WATSON, Irina Marsovna | Secretary | 2015-06-09 | 2021-10-21 |
| DE SARRAU, Pierre Marie Alain | Director | 2017-09-27 | 2021-10-21 |
| ETROY, Stephane Roland | Director | 2014-11-06 | 2015-06-09 |
| MAHER, Sophie Elizabeth | Director | 2016-06-22 | 2017-09-13 |
| NEAL, Kenneth Ronald | Director | 2015-06-09 | 2018-08-28 |
| CHARTERHOUSE CORPORATE DIRECTORS LIMITED | Corporate Director | 2014-11-06 | 2015-06-09 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Mirion Technologies, Inc. | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2025-03-25 | Active |
| Mirion Technologies (Holdingsub2), Ltd. | Corporate entity | Shares 75–100%, Voting 75–100% | 2019-08-30 | Ceased 2025-03-25 |
Filing timeline
Last 20 of 84 total filings
Material constitutional events — rename, articles re-file, resolution
- 2022-01-21 MA Memorandum articles
- 2022-01-05 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2025-12-23 | AA | accounts | Accounts with accounts type full | |
| 2025-12-08 | CH04 | officers | Change corporate secretary company with change date | |
| 2025-12-08 | AD01 | address | Change registered office address company with date old address new address | |
| 2025-11-10 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-07-23 | SH01 | capital | Capital allotment shares | |
| 2025-07-21 | SH01 | capital | Capital allotment shares | |
| 2025-07-16 | PSC02 | persons-with-significant-control | Notification of a person with significant control | |
| 2025-07-16 | PSC07 | persons-with-significant-control | Cessation of a person with significant control | |
| 2024-12-13 | AA | accounts | Accounts with accounts type full | |
| 2024-12-11 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2024-02-18 | AA | accounts | Accounts with accounts type full | |
| 2023-12-07 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-02-02 | AA | accounts | Accounts with accounts type full | |
| 2022-11-14 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-05-24 | AA01 | accounts | Change account reference date company previous shortened | |
| 2022-05-18 | AA | accounts | Accounts with accounts type full | |
| 2022-05-13 | AA01 | accounts | Change account reference date company previous shortened | |
| 2022-01-21 | MA | incorporation | Memorandum articles | |
| 2022-01-05 | RESOLUTIONS | resolution | Resolution | |
| 2021-12-29 | AA01 | accounts | Change account reference date company current extended |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 8
- Capital events
- 2
- Officers appointed
- 0
- Officers resigned
- 0
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 2024-12-31 vs 2023-12-31
-
Turnover
—
Not reported
-
Cash
+415.4%
£423 £2,180
-
Net assets
+9.6%
£483,918,833 £530,516,592
-
Employees
—
Not reported
-
Profit before tax
+22,281,518.2%
-£231 £51,470,076
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