£7.28m
+10%vs Mar 2025Active01609365Private limited companyGuildford
HYDRONIX LIMITED
Significant control: Jason Rolf Laffan (50–75%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Hydronix Limited sell?
Registered activity: Manufacture of electronic industrial process control equipment (SIC 26512). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
HYDRONIX LIMITED is an active private limited company (company number 01609365) incorporated on 25 January 1982, registered in Guildford. Its registered activity is manufacture of electronic industrial process control equipment (SIC 26512). Latest small accounts cover the period ending 31 March 2026, showing net assets of £7.28m and cash of £2.57m, with 20 employees on average. Net assets rose 10% on the prior period (£6.63m).
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
Ownership and control
- Mr Jason Rolf Laffan
- owns 50–75% of shares
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
- 25 January 198244 yrs ago
- Next accounts due
- 31 December 2027in 434 days
- Confirmation statement due
- 8 February 2027in 108 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 26512
- Manufacture of electronic industrial process control equipment
- SIC 72190
- Other research and experimental development on natural sciences and engineering
- Accounts type
- Total Exemption Full
- Size band
- SmallCompanies Act thresholds
05
Financials
£2.57m
+151%vs Mar 2025Not reported
20
−5%vs Mar 2025| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2026 | £7.28m | £2.57m | £1.26m | £1.55m | — | — | 20 |
| 31 March 2025 | £6.63m | £1.02m | £1.37m | £1.51m | — | — | 21 |
Current ratio3.78Current assets ÷ creditors within one year
Cash per employee£128kCash ÷ average employees
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 £7,278,786 at 31 March 2026
- Current assets at least 1.5× creditors within one yearCurrent ratio 3.78
- Cash at bank of £50,000 or moreCash £2,565,966
- Incorporated five or more years agoIncorporated 25 January 1982
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 434 days
- Confirmation statement duein 108 days
- Accounts period endNet assets £7.28m · small accounts
- Accounts period endNet assets £6.63m · small accounts
- Incorporated
08
Similar companies in Surrey
- NORTECH LIMITEDCrawley · inc. Jan 1983
- MCLENNAN SERVO SUPPLIES LIMITEDAsh Vale · inc. May 1976
- PSM INSTRUMENTATION LIMITEDWest Sussex · inc. Apr 1975
- ALRAD INSTRUMENTS LIMITEDCamberley · inc. Nov 1989
- ASTECH ELECTRONICS LIMITEDBinsted · inc. Mar 1974
- LEVELSTATE SYSTEMS LIMITEDAlton · inc. Mar 1990
All companies incorporated on 25 January 1982 · in Jan 1982.
09
Reminders for HYDRONIX LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.