NNL HOLDINGS LIMITED
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Cash
£51M
highest in 3 filed years
Net assets
£110M
highest in 3 filed years
Employees
1,590
highest in 3 filed years
Profit before tax
-£14M
Period ending 2025-09-30
Net assets
3-year trend · vs Industrials median
Accounts
3-year trend · Δ = latest vs prior filed period · latest reflected 2025-09-30
| Metric | Trend | 2023-03-31 | 2024-03-31 | 2025-09-30 | Δ vs prior |
|---|---|---|---|---|---|
| Turnover | £128,627,000 | £148,964,000 | £264,835,000 | — | |
| Operating profit | -£15,863,000 | -£15,624,000 | -£13,268,000 | — | |
| Profit before tax | -£13,434,000 | -£16,592,000 | -£13,619,000 | — | |
| Net profit | -£3,470,000 | -£6,014,000 | £3,549,000 | — | |
| Cash | £50,743,000 | £43,036,000 | £50,833,000 | — | |
| Total assets less current liabilities | £193,268,000 | £198,405,000 | £240,751,000 | — | |
| Net assets | £103,297,000 | £95,959,000 | £109,984,000 | — | |
| Equity | £103,297,000 | £95,959,000 | £109,984,000 | — | |
| Average employees | 1,430 | 1,509 | 1,590 | — | |
| Wages | £90,175,000 | £94,938,000 | £155,210,000 | — | |
| Directors' remuneration | £1,232,000 | £978,000 | £1,169,000 | — |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. The Δ column is the change from the prior filed period as a percentage of |prior|; lines a company doesn't report show —. Year-on-year comparison hidden: this filing covers about 18 months versus 12 months prior. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-03-31 | 2024-03-31 | 2025-09-30 |
|---|---|---|---|---|
| Operating margin | -12.3% | -10.5% | -5.0% | |
| Net margin | -2.7% | -4.0% | 1.3% | |
| Return on capital employed | -8.2% | -7.9% | -5.5% | |
| Gearing (liabilities / total assets) | 57.4% | 62.7% | 62.6% | |
| Current ratio | 2.29x | 1.87x | 2.05x | |
| Interest cover | — | -11.26x | -10.56x |
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
- IFRS
- Reporting scope
- Consolidated group
- Auditor
- Saffery LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“Based on this assessment, the directors have a reasonable expectation that the Group has adequate resources to continue in operational existence for the foreseeable future. Accordingly, they continue to adopt the going concern basis in preparing these financial statements.”
Group structure
- NNL HOLDINGS LIMITED · parent
- United Kingdom National Nuclear Laboratory Limited 100%
- Nexia Solutions Limited 100%
Significant events
- “In January 2026, a voluntary redundancy programme was announced within the Group's principal trading subsidiary (UKNNL) as part of a strategic restructuring initiative.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
5 active · 16 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| WHEELER, Samantha | Secretary | 2023-09-18 | — | — |
| HASTIE-OLDLAND, Mark | Director | 2023-03-31 | Dec 1983 | British |
| HEFFER, Christopher Charles | Director | 2025-10-16 | Nov 1972 | British |
| PARROTT, Edward Philip John, Dr | Director | 2026-06-02 | Aug 1984 | British |
| WATTS, Estelle Zoe | Director | 2026-06-02 | Jul 1974 | British |
Show 16 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| DUKES, David Barry | Secretary | 2013-05-07 | 2023-09-18 |
| ELSDEN, Andrew David | Secretary | 2010-01-04 | 2013-05-07 |
| WHEELER, Stephen David | Secretary | 2009-03-25 | 2010-01-05 |
| DE SOUZA, Stephen William | Director | 2011-07-01 | 2013-03-29 |
| DUNPHY, Ruth Marie | Director | 2018-04-11 | 2019-03-19 |
| EMERSON, Edward Horatio | Director | 2021-10-19 | 2025-10-16 |
| JAMIESON, Lindsay Helen | Director | 2022-01-28 | 2023-03-31 |
| KEENAGHAN-CLARK, Elizabeth Anna | Director | 2013-07-16 | 2015-03-13 |
| LACEY, Derek John | Director | 2009-03-25 | 2010-02-23 |
| LESTER, Craig Douglas | Director | 2017-09-29 | 2021-12-15 |
| LESTER, Craig Douglas | Director | 2011-05-26 | 2016-01-28 |
| PAYTON, Anna Charlotte | Director | 2018-05-16 | 2021-10-19 |
| RAMSAY, Richard Alexander Mcgregor | Director | 2009-03-25 | 2011-07-01 |
| SENIOR, David Michael | Director | 2010-05-19 | 2011-07-01 |
| WALKER, Jonathan Peter, Hon | Director | 2016-01-28 | 2018-04-20 |
| YATES, Thomas Henry Benedick | Director | 2016-01-28 | 2017-01-27 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Secretary Of State For Department Of Energy Security And Net Zero | Legal person | Shares 75–100%, Voting 75–100%, Appoints directors | 2023-05-03 | Active |
| Office For The Secretary Of State For Business, Energy And Industrial Strategy | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2016-07-14 | Ceased 2023-05-03 |
Filing timeline
Last 20 of 77 total filings
Material constitutional events — rename, articles re-file, resolution
- 2025-04-09 MA Memorandum articles
- 2025-04-03 RESOLUTIONS Resolution
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-06-20 | AA | accounts | Accounts with accounts type group | |
| 2026-06-03 | AP01 | officers | Appoint person director company with name date | |
| 2026-06-02 | AP01 | officers | Appoint person director company with name date | |
| 2026-03-31 | SH01 | capital | Capital allotment shares | |
| 2026-03-31 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-10-16 | AP01 | officers | Appoint person director company with name date | |
| 2025-10-16 | TM01 | officers | Termination director company with name termination date | |
| 2025-09-04 | AA01 | accounts | Change account reference date company current extended | |
| 2025-06-10 | RP04CS01 | confirmation-statement | Second filing of confirmation statement with made up date | |
| 2025-06-04 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2025-04-09 | MA | incorporation | Memorandum articles | |
| 2025-04-03 | RESOLUTIONS | resolution | Resolution | |
| 2025-03-28 | SH01 | capital | Capital allotment shares | |
| 2024-08-28 | AA | accounts | Accounts with accounts type group | |
| 2024-03-25 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2023-09-29 | AA | accounts | Accounts with accounts type group | |
| 2023-09-18 | TM02 | officers | Termination secretary company with name termination date | |
| 2023-09-18 | AP03 | officers | Appoint person secretary company with name date | |
| 2023-06-08 | PSC03 | persons-with-significant-control | Notification of a person with significant control | |
| 2023-06-08 | PSC07 | persons-with-significant-control | Cessation of a person with significant control |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 8
- Capital events
- 2
- Officers appointed
- 3
- 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.