£108k
−20%vs May 2024Active09034459Private limited companyHarrow
KEYSTONE TUNNELLING LIMITED
Significant control: Steven Antony Coupland Parker (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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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What does Keystone Tunnelling Limited sell?
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
KEYSTONE TUNNELLING LIMITED is an active private limited company (company number 09034459) incorporated on 12 May 2014, registered in Harrow. Its registered activity is other engineering activities (SIC 71129). Latest micro accounts cover the period ending 31 May 2025, showing net assets of £108k, 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 20% on the prior period (£135k).
Peer position · net assets
By net assets it sits in the top quarter of 1,321 comparable companies in Greater London (median £7,703, upper quartile £45k).
02
Ownership and control
- Steven Antony Coupland Parker
- owns 75–100% of shares
- holds 75–100% of voting rights
- 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
- 12 May 201412 yrs ago
- Next accounts due
- 28 February 2027in 126 days
- Confirmation statement due
- 26 May 2027in 213 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
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
1
No changevs May 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 May 2025 | £108k | — | — | £7,646 | — | — | 1 |
| 31 May 2024 | £135k | — | — | £16k | — | — | 1 |
Current ratio14.69Current 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 £108,478 at 31 May 2025
- Current assets at least 1.5× creditors within one yearCurrent ratio 14.69
- Incorporated five or more years agoIncorporated 12 May 2014
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 213 days
- Next accounts duein 126 days
- Accounts period endNet assets £108k · micro accounts
- Accounts period endNet assets £135k · micro accounts
- Incorporated
08
Similar companies in Greater London
- LGM ENGINEERING LIMITEDCroydon · inc. May 2014
- PABRST ENGINEERING LTDIlford · inc. May 2014
- SOREO LIMITEDChigwell · inc. May 2014
- ENGINEERING TECHNICAL SERVICES LIMITEDMorden · inc. May 2014
- ARIELAOZ CONSULTING LIMITEDBorehamwood · inc. May 2014
- T-REIGNS SERVICES LIMITEDDagenham · inc. May 2014
All companies incorporated on 12 May 2014 · in May 2014.
09
Reminders for KEYSTONE TUNNELLING LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.