£56.07m
+28%vs Dec 2024Active04492402Private limited companyGerrards Cross
TSL LIMITED
Significant control: Tonroe Group Limited (75–100%)
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
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What does Tsl Limited sell?
Registered activity: Engineering design activities for industrial process and production (SIC 71121). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
TSL LIMITED is an active private limited company (company number 04492402) incorporated on 23 July 2002, registered in Gerrards Cross. Its registered activity is engineering design activities for industrial process and production (SIC 71121). Latest full accounts cover the period ending 31 December 2025, showing net assets of £56.07m and cash of £69.72m. Net assets rose 28% on the prior period (£43.71m).
Peer position · net assets
By net assets it sits in the top quarter of 115 comparable companies in Reading (median £13k, upper quartile £76k).
02
Ownership and control
- Tonroe Group Limited
- owns 75–100% of shares
- holds 75–100% of voting rights
Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents. Directors and secretaries: see the officers list at Companies House.
03
Key dates
- Incorporated
- 23 July 200224 yrs ago
- Next accounts due
- 30 September 2027in 342 days
- Confirmation statement due
- 6 August 2027in 287 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 71121
- Engineering design activities for industrial process and production
- Accounts type
- Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£69.72m
+41%vs Dec 2024Not reported
Not reported
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | £56.07m | £69.72m | £150.94m | £150.89m | — | £18.52m | — |
| 31 December 2024 | £43.71m | £49.42m | £151.63m | £156.22m | — | £19.80m | 252 |
| 31 December 2023 | — | — | — | — | — | — | — |
Current ratio1.46Current assets ÷ creditors within one year
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet assets £56,068,000 at 31 December 2025
- Net assets up 10% or more on the prior period+28.3% vs prior period
- Cash at bank of £50,000 or moreCash £69,723,000
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 23 July 2002
Neutral facts read from the register and filed accounts, each with its evidence. They are not a rating, a prediction or advice, and may be incomplete or out of date. How each signal is derived.
07
Timeline
- Next accounts duein 342 days
- Confirmation statement duein 287 days
- Accounts period endNet assets £56.07m · full accounts
- Accounts period endNet assets £43.71m · full accounts
- Accounts period end
- Incorporated
08
Similar companies in Reading
- MECHON LIMITEDAscot · inc. Jan 2004
- KEMSHALL DESIGN LIMITEDBasingstoke · inc. Nov 1999
- ABSTRACT CONCEPT LIMITEDMaidenhead · inc. May 2005
- KENDRA ENERGY SOLUTIONS LIMITEDMaidenhead · inc. Sept 1999
- ALINE DESIGN LIMITEDHungerford · inc. Jun 2005
- JOHN WALLIKER CONSULTING LIMITEDAscot · inc. Feb 1999
All companies incorporated on 23 July 2002 · in Jul 2002.
09
Reminders for TSL LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.