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REGISTERED NUMBER: 02183217 (England and Wales)















Southern Testing Laboratories Limited

Unaudited Financial Statements for the Year Ended 31 March 2026






Southern Testing Laboratories Limited (Registered number: 02183217)






Contents of the Financial Statements
for the Year Ended 31 March 2026




Page

Company Information 1

Balance Sheet 2

Notes to the Financial Statements 4


Southern Testing Laboratories Limited

Company Information
for the Year Ended 31 March 2026







DIRECTORS: Dr J J P Kelly
Mr C Lennard
Dr L D Mockett
Mr S F Pratt
Mr D J Spearman
Mr P J Sugden





SECRETARY: Mrs P L Noble





REGISTERED OFFICE: Keeble House
Stuart Way
East Grinstead
West Sussex
RH19 4QA





REGISTERED NUMBER: 02183217 (England and Wales)





ACCOUNTANTS: Swindells LLP
Chartered Accountants
Atlantic House
8 Bell Lane
Bellbrook Industrial Estate
Uckfield
East Sussex
TN22 1QL

Southern Testing Laboratories Limited (Registered number: 02183217)

Balance Sheet
31 March 2026

2026 2025
Notes £    £    £    £   
FIXED ASSETS
Tangible assets 4 404,178 344,460
Investments 5 2 2
404,180 344,462

CURRENT ASSETS
Stocks 44,844 72,721
Debtors 6 2,255,672 2,407,586
Cash at bank and in hand 101,237 171,382
2,401,753 2,651,689
CREDITORS: AMOUNTS FALLING DUE
WITHIN ONE YEAR

7

1,058,082

1,285,897
NET CURRENT ASSETS 1,343,671 1,365,792
TOTAL ASSETS LESS CURRENT LIABILITIES 1,747,851 1,710,254

CREDITORS: AMOUNTS FALLING DUE
AFTER MORE THAN ONE YEAR

8

133,065

96,048
NET ASSETS 1,614,786 1,614,206

CAPITAL AND RESERVES
Called up share capital 10 400,000 400,000
Retained earnings 1,214,786 1,214,206
SHAREHOLDERS' FUNDS 1,614,786 1,614,206

The company is entitled to exemption from audit under Section 477 of the Companies Act 2006 for the year ended 31 March 2026.

The members have not required the company to obtain an audit of its financial statements for the year ended 31 March 2026 in accordance with Section 476 of the Companies Act 2006.

The directors acknowledge their responsibilities for:
(a)ensuring that the company keeps accounting records which comply with Sections 386 and 387 of the Companies Act 2006 and
(b)preparing financial statements which give a true and fair view of the state of affairs of the company as at the end of each financial year and of its profit or loss for each financial year in accordance with the requirements of Sections 394 and 395 and which otherwise comply with the requirements of the Companies Act 2006 relating to financial statements, so far as applicable to the company.

Southern Testing Laboratories Limited (Registered number: 02183217)

Balance Sheet - continued
31 March 2026


The financial statements have been prepared and delivered in accordance with the provisions applicable to companies subject to the small companies regime.

In accordance with Section 444 of the Companies Act 2006, the Income Statement has not been delivered.

The financial statements were approved by the Board of Directors and authorised for issue on 11 September 2026 and were signed on its behalf by:





Dr L D Mockett - Director


Southern Testing Laboratories Limited (Registered number: 02183217)

Notes to the Financial Statements
for the Year Ended 31 March 2026

1. STATUTORY INFORMATION

Southern Testing Laboratories Limited is a private company, limited by shares , registered in England and Wales. The company's registered number and registered office address can be found on the Company Information page.

The presentation currency of the financial statements is the Pound Sterling (£).


2. ACCOUNTING POLICIES

Basis of preparing the financial statements
These financial statements have been prepared in accordance with Financial Reporting Standard 102 "The Financial Reporting Standard applicable in the UK and Republic of Ireland" including the provisions of Section 1A "Small Entities" and the Companies Act 2006. The financial statements have been prepared under the historical cost convention.

Turnover
Turnover is recognised on an accruals basis as services are provided.

Revenue from contracts for the provision of professional services is recognised by reference to the stage of completion, when the stage of completion, costs incurred and costs to complete can be estimated reliably. The stage of completion is calculated by comparing costs incurred, mainly in relation to contractual hourly staff rates and materials, as a proportion of total costs. Where the outcome cannot be estimated reliably, revenue is recognised only to the extent of the expenses recognised that are recoverable.

Tangible fixed assets
Depreciation is provided at the following annual rates in order to write off each asset over its estimated useful life.
Plant and machinery - 20% on cost
Motor vehicles - 25% on cost
Office equipment - 20% on cost

Investments in subsidiaries
Investments in subsidiary undertakings are recognised at cost less any provision for impairment.

Stocks
Stocks and work in progress are valued at the lower of cost and net realisable value, after making due allowance for obsolete and slow moving items.

Cost is calculated using the first-in, first-out method and includes all purchase, transport, and handling costs in bringing stocks to their present location and condition.


Southern Testing Laboratories Limited (Registered number: 02183217)

Notes to the Financial Statements - continued
for the Year Ended 31 March 2026

2. ACCOUNTING POLICIES - continued
Taxation
Taxation for the year comprises current and deferred tax. Tax is recognised in the Income Statement, except to the extent that it relates to items recognised in other comprehensive income or directly in equity.

Current or deferred taxation assets and liabilities are not discounted.

Current tax is recognised at the amount of tax payable using the tax rates and laws that have been enacted or substantively enacted by the balance sheet date.

Deferred tax
Deferred tax is recognised in respect of all timing differences that have originated but not reversed at the balance sheet date.

Timing differences arise from the inclusion of income and expenses in tax assessments in periods different from those in which they are recognised in financial statements. Deferred tax is measured using tax rates and laws that have been enacted or substantively enacted by the year end and that are expected to apply to the reversal of the timing difference.

Unrelieved tax losses and other deferred tax assets are recognised only to the extent that it is probable that they will be recovered against the reversal of deferred tax liabilities or other future taxable profits.

Hire purchase and leasing commitments
Rentals paid under operating leases are charged to profit or loss on a straight line basis over the period of the lease.

Pension costs and other post-retirement benefits
The company operates a defined contribution pension scheme. Contributions payable to the company's pension scheme are charged to profit or loss in the period to which they relate.

3. EMPLOYEES AND DIRECTORS

The average number of employees during the year was 58 (2025 - 60 ) .

Southern Testing Laboratories Limited (Registered number: 02183217)

Notes to the Financial Statements - continued
for the Year Ended 31 March 2026

4. TANGIBLE FIXED ASSETS
Plant and Motor Office
machinery vehicles equipment Totals
£    £    £    £   
COST
At 1 April 2025 550,562 879,077 353,436 1,783,075
Additions 61,204 141,382 28,166 230,752
Disposals - (99,538 ) - (99,538 )
At 31 March 2026 611,766 920,921 381,602 1,914,289
DEPRECIATION
At 1 April 2025 497,762 675,981 264,872 1,438,615
Charge for year 32,683 111,197 27,154 171,034
Eliminated on disposal - (99,538 ) - (99,538 )
At 31 March 2026 530,445 687,640 292,026 1,510,111
NET BOOK VALUE
At 31 March 2026 81,321 233,281 89,576 404,178
At 31 March 2025 52,800 203,096 88,564 344,460

5. FIXED ASSET INVESTMENTS
Shares in
group
undertakings
£   
COST
At 1 April 2025
and 31 March 2026 2
NET BOOK VALUE
At 31 March 2026 2
At 31 March 2025 2

6. DEBTORS
2026 2025
£    £   
Amounts falling due within one year:
Trade debtors 1,364,858 1,534,680
Amounts owed by group undertakings 200 200
Other debtors 880,855 835,814
2,245,913 2,370,694

Southern Testing Laboratories Limited (Registered number: 02183217)

Notes to the Financial Statements - continued
for the Year Ended 31 March 2026

6. DEBTORS - continued
2026 2025
£    £   
Amounts falling due after more than one year:
Other debtors 9,759 36,892

Aggregate amounts 2,255,672 2,407,586

7. CREDITORS: AMOUNTS FALLING DUE WITHIN ONE YEAR
2026 2025
£    £   
Bank loans and overdrafts - 5,815
Hire purchase contracts 116,850 93,442
Trade creditors 656,991 744,775
Taxation and social security 156,188 224,273
Other creditors 128,053 217,592
1,058,082 1,285,897

8. CREDITORS: AMOUNTS FALLING DUE AFTER MORE THAN ONE YEAR
2026 2025
£    £   
Hire purchase contracts 133,065 96,048

9. SECURED DEBTS

The following secured debts are included within creditors:

2026 2025
£    £   
Hire purchase contracts 249,915 189,490

Hire purchase loans are secured against the assets to which they relate.

10. CALLED UP SHARE CAPITAL

Allotted, issued and fully paid:
Number: Class: Nominal 2026 2025
value: £    £   
400,000 Ordinary £1 400,000 400,000

Southern Testing Laboratories Limited (Registered number: 02183217)

Notes to the Financial Statements - continued
for the Year Ended 31 March 2026

11. RELATED PARTY DISCLOSURES

During the year the company paid rent to a company under common control totalling £18,000 (2025 - £18,000) and also paid expenses on behalf of that company totalling £7,720 (2025 - £nil). At the balance sheet date the company was owed £576,381 (2025 - £588,717) by the company under common control. Interest was charged on this loan of £11,568 (2025 - £11,597) during the year. The loan is unsecured and repayable on demand.

At the balance sheet date, the company was owed £200 (2025 - £200) by its parent company. This loan is unsecured, interest free and repayable on demand.

12. PARENT COMPANY

The company's parent company is STL (Holdings) Limited, a company registered in England and Wales.