£877
−30%vs May 2024Active05133530Private limited companyHertfordshire
RONSEK LIMITED
Significant control: Kesorn Weaver (50–75%), Kesorn Weaver (significant control)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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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Registered activity: Other research and experimental development on natural sciences and engineering (SIC 72190). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
RONSEK LIMITED is an active private limited company (company number 05133530) incorporated on 20 May 2004, registered in Hertfordshire. Its registered activity is other research and experimental development on natural sciences and engineering (SIC 72190). Latest micro accounts cover the period ending 19 May 2025, showing net assets of £877, with 1 employee on average. Turnover was £7,790 and profit for the year −£78k. Net assets fell 30% on the prior period (£1,261).
Peer position · net assets
By net assets it sits in the upper half of 75 comparable companies in Essex (median £223, upper quartile £10k).
02
Ownership and control
- Dr Kesorn Weaver
- owns 50–75% of shares
- holds 50–75% of voting rights
- Dr Kesorn Weaver
- has significant influence or control
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
- 20 May 200422 yrs ago
- Next accounts due
- 19 February 2027in 119 days
- Confirmation statement due
- 3 June 2027in 223 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 72190
- Other research and experimental development on natural sciences and engineering
- SIC 74909
- Other professional, scientific and technical activities n.e.c.
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
£7,790
−52%vs May 20241
Not reported the period before| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 19 May 2025 | £877 | — | — | — | £7,790 | −£78k | 1 |
| 19 May 2024 | £1,261 | — | — | — | £16k | −£71k | — |
Net margin-1006.2%Profit for the year ÷ turnover
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
06
Filing and accounts signals
- Net assets above zeroNet assets £877 at 19 May 2025
- Net assets down 25% or more on the prior period-30.5% vs prior period
- Incorporated five or more years agoIncorporated 20 May 2004
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
- Confirmation statement duein 223 days
- Next accounts duein 119 days
- Accounts period endNet assets £877 · micro accounts
- Accounts period endNet assets £1,261 · micro accounts
- Incorporated
08
Similar companies in Essex
- OPTICAL METROLOGY SERVICES LIMITEDStansted · inc. Jul 2004
- NG DESIGNS LIMITEDRochford · inc. Feb 2004
- GENERIC SCIENCE AND TECHNOLOGIES LIMITEDColchester · inc. Nov 2003
- NEUROROBOTICS LIMITEDSouthend-On-Sea · inc. Apr 2005
- M S AUTOMOTIVE LIMITEDLeigh-On-Sea · inc. Jun 2003
- DANBY SCIENTIFIC LIMITEDColchester · inc. Apr 2006
All companies incorporated on 20 May 2004 · in May 2004.
09
Reminders for RONSEK LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.