Company Overview
United Kingdom National Nuclear Laboratory Limited is listed at the official companies registry as Active Private Limited Company. The company was incorporated on Thursday 07 October 1999, so this is a well established company. United Kingdom National Nuclear Laboratory Limited has been in business for 26 years and 5 months. The accounts status is full and the accounts are next due on Tuesday 30 June 2026.
Registered Address

Chadwick House Warrington Road, Birchwood Park, Warrington, WA3 6AE
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Companies House Data
Company NameUNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED
Company Number03857752
Registered Office AddressChadwick House Warrington Road
 Birchwood Park
 WA3 6AE
Company CategoryPrivate Limited Company
Company StatusActive
Country of OriginUnited Kingdom
Incorporation Date07/10/1999
Accounting Reference Date Day30
Accounting Reference Date Month9
Accounts Next Due Date30/06/2026
Accounts Last Made Up Date31/03/2024
Accounts Account CategoryFULL
Returns Next Due Date04/11/2016
Returns Last Made Up Date07/10/2015
Previous Company NameChanged Date
NATIONAL NUCLEAR LABORATORY LIMITED17 Dec 2024
NEXIA SOLUTIONS LIMITED10 Nov 2008
Directors & Members
Show Resigned
Julianne Antrobus - Director
(British, 52 years old, born January 1974)
Appointed 01 April 2025
 Active
Iain Clarkson - Director
(British, 59 years old, born February 1967)
Appointed 01 October 2019
 Active
Ann Cormack - Director
(British, 64 years old, born March 1962)
Appointed 21 April 2023
 Active
Hannah Gray - Director
(British, 50 years old, born January 1976)
Appointed 21 October 2025
 Active
Secretaries
Show Resigned
Other Company Directorships
Julianne Antrobus
NEXIA SOLUTIONS LIMITED
Iain Clarkson
No companies found
Ann Cormack
ELEMENT SIX ABRASIVES HOLDINGS LIMITED
ELEMENT SIX HOLDINGS LIMITED
Hannah Gray
UK GREEN INFRASTRUCTURE PLATFORM LIMITED
Balance Sheet Unlock full report
Accounts Date 31-Mar-2024 31-Mar-2016 31-Mar-2015
Balance Sheet
Fixed Assets 76,320,000 76,320,000 68,047,000
Current Assets 47,843,000 47,843,000 43,392,000
Creditors Due Within One Year 34,968,000 34,968,000 32,802,000
Working Cap 12,875,000 12,875,000 10,590,000
Total Assets Less Current Liabilities 89,195,000 89,195,000 78,637,000
Long-term Liabilities 45,149,000 45,149,000 41,945,000
Net Assets 44,046,000 44,046,000 36,692,000
Share Capital & Reserves
Share Cap 25,000 25,000 25,000
Profit & Loss Reserves 44,021,000 44,021,000 36,667,000
Other Reserves 0 0 0
Shareholders Funds 44,046,000 44,046,000 36,692,000
Common Size Financial Analysis Unlock full report
Accounts Date 31-Mar-2024 31-Mar-2016 31-Mar-2015
Tangible Fixed Assets - - -
Fixed Assets 61.5% 61.5% 61.1%
Stocks Inventory 0.0% 0.0% 0.0%
Debtors 11.9% 11.9% 13.2%
Cash Bank In Hand 8.3% 8.3% 10.8%
Current Assets 38.5% 38.5% 38.9%
Creditors Due Within One Year 28.2% 28.2% 29.4%
Net Current Assets Liabilities 10.4% 10.4% 9.5%
Creditors Due After One Year 36.4% 36.4% 37.6%
Accruals Deferred Income - - -
Provisions For Liabilities Charges - - -
Net Assets Liabilities Including Pension Asset Liability 35.5% 35.5% 32.9%
Called Up Share Capital 0.0% 0.0% 0.0%
Share Capital Allotted Called Up Paid 0.0% 0.0% 0.0%
Profit Loss Account Reserve 35.5% 35.5% 32.9%
Shareholder Funds 35.5% 35.5% 32.9%
Capital Employed - - -
Total Assets Less Current Liabilities 71.8% 71.8% 70.6%
Financial Ratio Analysis Unlock full report
Accounts Date 31-Mar-2024 31-Mar-2016 31-Mar-2015
Liquidity Ratio 1.4 1.4 1.3
Solvency Ratio 1.6 1.6 1.5
Reserves to Assets 0.4 0.4 0.3
Secured Creditors Unlock full report
Mortgages Charges 0
Mortgages Outstanding 0
Mortgages Part Satisfied 0
Mortgages Satisfied 0
Assets and Debt Analysis Unlock full report
Accounts Date 31-Mar-2024 31-Mar-2016 31-Mar-2015
Assets 124,163,000 124,163,000 111,439,000
Debt 80,117,000 80,117,000 74,747,000
Net Assets/Debt 44,046,000 44,046,000 36,692,000

The following is based on the accounts data presented in this report sourced from Companies House, however the company has filed later accounts. Our analysis of the latest account can be viewed by unlocking our full report.

The current section of the balance sheet has positive working capital. We would normally consider this positively. Total reserves including retained profitability and movement in reserves appeared positive. We would normally view a company positively for this. The balance sheet indicates the net assets of a good sized company. For the size of the company inferred by the balance sheet the level of net assets suggests a comfortable level of cover for total debts and obligations. The latest accounts are not up-to-date. Later accounts are now overdue. Late filing is not a positive factor. Analysis based on the latest figures available must be taken in the context that the figures are not up-to-date.

Unlock full report  The following is based on the accounts data presented in this report sourced from Companies House, however the company has filed later accounts. Our analysis of the latest account can be viewed by unlocking our full report.The current section of the balance sheet has positive working capital. We would normally consider this positively. Total reserves including retained profitability and movement in reserves appeared positive. We would normally view a company positively for this. The balance sheet indicates the net assets of a good sized company. For the size of the company inferred by the balance sheet the level of net assets suggests a comfortable level of cover for total debts and obligations. The latest accounts are not up-to-date. Later accounts are now overdue. Late filing is not a positive factor. Analysis based on the latest figures available must be taken in the context that the figures are not up-to-date.   The following is based on the accounts data presented in this report sourced from Companies House, however the company has filed later accounts. Our analysis of the latest account can be viewed by unlocking our full report.The current section of the balance sheet has positive working capital. We would normally consider this positively. Total reserves including retained profitability and movement in reserves appeared positive. We would normally view a company positively for this. The balance sheet indicates the net assets of a good sized company. For the size of the company inferred by the balance sheet the level of net assets suggests a comfortable level of cover for total debts and obligations. The latest accounts are not up-to-date. Later accounts are now overdue. Late filing is not a positive factor. Analysis based on the latest figures available must be taken in the context that the figures are not up-to-date.

This review of public record balance sheet and company status information is presented under the terms of Open Government Licence and is for informational purposes only, is general in nature, and is not intended as an opinion or advice for any specific circumstances. The commentary and the colour band score is not a credit rating or credit risk assessment.

This review does not constitute a full credit rating or credit risk assessment based on the full analysis and credit score algorithms used in our credit reports. A full credit report may also provide information relating to trade payment history and county court or court judgments if any.

Public Record Information Unlock full report
Exact Court Judgements
Period of Months Last 12m 13-24m 25-36m 37-48m 49-60m 61-72m
Number of Exact CCJS X Y Y X X Y
Value of Exact CCJS YXY YK S S X KX
Supplier Credit Limits Unlock full report
Date Sector Notified Amount Terms
XK-SXY XKXYXK SXSKXYXK £X,000 XS XYSKS
SK-SYY SKXYXKYKKY KSXX KKXXYXS £YY,000 YS XYSKS SK YXXSXS
YK-SXY XKXYXYYK SXSXYXK £SX,000 XS XYSKS
Payment Records Unlock full report
Payment Records from it's suppliers' company ledger show how a company is paying its suppliers

Payment Analysis

Total Invoices Paid Before
30 days due		 Paid After
30 days due		 Owing Before
30 days due		 Owing after
30 days due
XYX SX K YX X
Company Valuation Analysis Unlock full report

Going Concern Valuation

The going concern valuations value the company on the basis that it continues to trade without the threat of liquidation for the foreseeable future. These valuations are primarily profit and cashflow based.

Valuations Valuation Measures
Estimated High Value £XSI,000 Retained Profit £YX,000
Estimated Mid Value £YY,000 EBIT £SY,000
Estimated Low Value £X,000 EBITDA £SSX,000

Liquidation Valuation

The liquidaton valuation values the company as if it were to cease trading and assets were subject to rapid disposal to cover liabilities. This valuation is primarily asset based.

Valuations Valuation Measures
Estimated High Value £XY,000 Total Assets £XIX,000
Estimated Mid Value £Y,000 Net Assets £YX,000
Estimated Low Value £S,000 Tangible Equity £SX,000

The above valuations are based on our own algorithms and take no account of many factors that can influence actual valuations realized and should not therefore be assumed to be accurate.
Credit Status Checklist Unlock full report
Business Growth Please purchase a report to see true comments
EBITDA Purchase a report to see true comments
Dividends Please purchase a report to see true comments about this company
Retained Profits Retained Profits for this company
Debt Interest Debt Interest for this company
Cash Flow Cash Flow for this company
CCJs CCJs for this company
Age of Company Age of Company for this company
Solvency Solvency for this company
Secured Creditors Secured Creditors for this company
Ownership Ownership for this company


First Report Score: (0-10) X
Financial Status Guide:
10 Very Strong
9 Strong
8 Very Good
7 Good
6 Above Average
5 Average
4 Below Average
3 Poor
2 Weak
1 Very Weak
0 Critical

Risk Score Trend

Risk Rating Unlock full report

This is the credit risk assessment used by one of the top UK credit reference agencies.

Risk Score (1-100) X
Risk Band Description XXMXMXMX SISX
Risk Assessment Meeting of Creditors
Credit Rating XSKX
Altman Z Score Credit Risk Rating Unlock full report

There have been many bankruptcy predictors developed, however none has been so thoroughly tested and broadly accepted as the Altman Z-Score.

Z Score X
Risk Band XY
Risk Band Description The Z Score is not used for small companies where full accounts are not filed because profit and loss account items are required to calculate the score.

Z Score Bands

1 Low Risk 3.00 and above
2 Caution 2.63 - 2.99
3 Risk of Failure within 2 years 1.24 - 2.62
4 High Probability Failure Below 1.24
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Document Filings
Appointment of Mr David Douglas Scott as a director on 23 January 2026
Termination of appointment of Ian Grant Funnell as a director on 31 December 2025
Appointment of Mrs Hannah Brewer Gray as a director on 21 October 2025
Termination of appointment of Edward Horatio Emerson as a director on 17 October 2025
Confirmation statement made on 7 October 2025 with updates
Current accounting period extended from 31 March 2025 to 30 September 2025
Termination of appointment of Matthew Stephen Miller as a director on 30 July 2025
Resolutions
Memorandum and Articles of Association
Appointment of Mrs Julianne Antrobus as a director on 1 April 2025
Appointment of Professor Neil Graham Smart as a director on 1 April 2025
Termination of appointment of Stephen John Garwood as a director on 31 March 2025
Termination of appointment of Paul John Arton Howarth as a director on 31 March 2025
Termination of appointment of Clare Marie Barlow as a director on 31 March 2025
Statement of capital following an allotment of shares on 28 March 2025
Memorandum and Articles of Association
Resolutions
Certificate of change of name
Confirmation statement made on 7 October 2024 with no updates
Termination of appointment of Fiona Elizabeth Rayment as a director on 31 October 2023
Confirmation statement made on 7 October 2023 with no updates
Appointment of Mrs Samantha Wheeler as a secretary on 18 September 2023
Termination of appointment of David Barry Dukes as a secretary on 18 September 2023
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