£1.31m
+18%vs Dec 2024Active07176384Private limited companyLeeds
CSS ISOTEK LIMITED
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
01
Summary
CSS ISOTEK LIMITED is an active private limited company (company number 07176384) incorporated on 3 March 2010, registered in Leeds. Its registered activity is manufacture of electronic industrial process control equipment (SIC 26512). Latest small accounts cover the period ending 31 December 2025, showing net assets of £1.31m and cash of £470k, with 26 employees on average. Net assets rose 18% on the prior period (£1.12m).
Peer position · net assets
By net assets it sits in the top quarter of 667 comparable companies in the UK (median £35k, upper quartile £408k).
02
Key dates
- Incorporated
- 3 March 201016 yrs ago
- Next accounts due
- 30 September 2027in 343 days
- Confirmation statement due
- 17 March 2027in 146 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
03
Activity
- SIC 26512
- Manufacture of electronic industrial process control equipment
- SIC 28990
- Manufacture of other special-purpose machinery n.e.c.
- SIC 33200
- Installation of industrial machinery and equipment
- SIC 71121
- Engineering design activities for industrial process and production
- Accounts type
- Small
- Size band
- SmallCompanies Act thresholds
04
Financials
£470k
+20%vs Dec 2024Not reported
26
+18%vs Dec 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 December 2025 | £1.31m | £470k | £364k | £817k | — | — | 26 |
| 31 December 2024 | £1.12m | £392k | £442k | £809k | — | — | 22 |
Current ratio1.04Current assets ÷ creditors within one year
Cash per employee£18kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
05
Filing and accounts signals
- Net assets above zeroNet assets £1,314,066 at 31 December 2025
- Net assets up 10% or more on the prior period+17.7% vs prior period
- Cash at bank of £50,000 or moreCash £469,614
- Incorporated five or more years agoIncorporated 3 March 2010
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 They are not a rating, a prediction or advice, and may be incomplete or out of date.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.
06
Ownership and control
- Connector Subsea Solutions As
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
- Professor John David Rhodes
- has significant influence or control
- Mr PåL Magne Hisdal
- 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.
07
Timeline
- Next accounts duein 343 days
- Confirmation statement duein 146 days
- Accounts period endNet assets £1.31m · small accounts
- Accounts period endNet assets £1.12m · small accounts
- Incorporated
08
Similar companies in Leeds
- HMI ELEMENTS HOLDINGS LTDLeeds · inc. Jul 2009
- INFOX TECHNOLOGIES LTDBingley · inc. Apr 2009
- CONTROL WATER GROUP LIMITEDLeeds · inc. Feb 2008
- HV ENGINEERS LTDHalifax · inc. Dec 2012
- ENABLING TECHNOLOGIES LIMITEDWest Yorkshire · inc. Feb 2007
- LEEMARK CONTROL SYSTEMS LIMITEDLeeds Road Greengates, Bradford · inc. Aug 2006
All companies incorporated on 3 March 2010 · in Mar 2010.
09
Reminders for CSS ISOTEK LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.