−£538k
vs Oct 2024Active03126940Private limited companyLondon
MCDONNELL ASSOCIATES LIMITED
Significant control: Louise Ostendorf (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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Registered activity: Other engineering activities (SIC 71129). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
MCDONNELL ASSOCIATES LIMITED is an active private limited company (company number 03126940) incorporated on 16 November 1995, registered in London. Its registered activity is other engineering activities (SIC 71129). Latest micro accounts cover the period ending 31 October 2025, showing net assets of −£538k, with 1 employee on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 39% on the prior period (−£386k). Across the last 3 periods on record the net-asset trend is volatile.
Peer position · net assets
By net assets it sits in the bottom quarter of 1,655 comparable companies in London (median £4,206, upper quartile £48k).
02
Ownership and control
- Mrs Louise Ostendorf
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
- can appoint or remove directors
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
- 16 November 199530 yrs ago
- Next accounts due
- 31 July 2027in 277 days
- Confirmation statement due
- 30 November 2026in 34 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 71129
- Other engineering activities
- SIC 82990
- Other business support service activities n.e.c.
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
1
vs Oct 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 October 2025 | −£538k | — | — | £4.18m | — | — | 1 |
| 31 October 2024 | −£386k | £14k | £2.40m | — | — | — | 0 |
| 31 October 2023 | −£429k | £73k | £2.32m | — | — | — | 1 |
Current ratio0.58Current 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 below zeroNet assets £-538,061 at 31 October 2025
- Net assets down 25% or more on the prior period-39.3% vs prior period
- Current assets below creditors within one yearCurrent ratio 0.58
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 16 November 1995
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 277 days
- Confirmation statement duein 34 days
- Accounts period endNet liabilities £538k · micro accounts
- Accounts period endNet liabilities £386k · micro accounts
- Accounts period endNet liabilities £429k · micro accounts
- Incorporated
08
Similar companies in London
- ROBINSON YOUNG DESIGN LIMITEDLondon · inc. Dec 1995
- THE REGENERATION PRACTICE LIMITEDLondon · inc. Oct 1995
- RAVEN GREEN & COMPANY LIMITEDFinchley · inc. Feb 1996
- PROJECT MASTERS (GUILDFORD) LIMITEDLondon · inc. Aug 1995
- BARNARD & ASSOCIATES LIMITEDLondon · inc. Mar 1996
- DANMARK LIMITEDLondon · inc. Mar 1996
All companies incorporated on 16 November 1995 · in Nov 1995.
09
Reminders for MCDONNELL ASSOCIATES LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.