£59k
−49%vs Oct 2024Active12933278Private limited companyStaines-Upon-Thames
JONATHAN DARNELL ENGINEERING LIMITED
Significant control: Jonathan Darnell (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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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
JONATHAN DARNELL ENGINEERING LIMITED is an active private limited company (company number 12933278) incorporated on 6 October 2020, registered in Staines-Upon-Thames. Its registered activity is engineering design activities for industrial process and production (SIC 71121). Latest micro accounts cover the period ending 31 October 2025, showing net assets of £59k, with 2 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 49% on the prior period (£114k).
Peer position · net assets
By net assets it sits in the top quarter of 344 comparable companies in Greater London (median £6,125, upper quartile £31k).
02
Ownership and control
- Mr Jonathan Darnell
- owns 50–75% of shares
- holds 50–75% of voting rights
- can appoint or remove directors
- Ms Danuta Victoria Sierakowski
- owns 25–50% of shares
- holds 25–50% 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
- 6 October 20206 yrs ago
- Next accounts due
- 31 July 2027in 281 days
- Confirmation statement due
- 20 October 2027in 362 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
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
2
No changevs Oct 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 October 2025 | £59k | — | — | £29k | — | — | 2 |
| 31 October 2024 | £114k | — | — | £60k | — | — | 2 |
Current ratio2.9Current assets ÷ creditors within one year
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 £58,660 at 31 October 2025
- Net assets down 25% or more on the prior period-48.7% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 2.9
- Incorporated five or more years agoIncorporated 6 October 2020
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 362 days
- Next accounts duein 281 days
- Accounts period endNet assets £59k · micro accounts
- Accounts period endNet assets £114k · micro accounts
- Incorporated
08
Similar companies in Greater London
09
Reminders for JONATHAN DARNELL ENGINEERING LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.