# KEYSTONE TUNNELLING LIMITED (09034459)

> 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).

- Status: Active
- Incorporated: 2014-05-12
- Registered office: Harrow, HA1 2AW
- SIC 71129: Other engineering activities
- Next accounts due: 2027-02-28
- Confirmation statement due: 2027-05-26
- Accounts type: MICRO ENTITY

By net assets it sits in the top quarter of 1,321 comparable companies in Greater London (median £7,703, upper quartile £45k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-05-31 | £108k | — | — | £7,646 | — | — | 1 |
| 2024-05-31 | £135k | — | — | £16k | — | — | 1 |

current ratio 14.69; size band micro.

## Filing and accounts signals (facts, not a rating)

- Net assets above zero: Net assets £108,478 at 31 May 2025
- Current assets at least 1.5× creditors within one year: Current ratio 14.69
- Incorporated five or more years ago: Incorporated 12 May 2014

How each signal is derived: https://firmoscan.com/methodology

## Persons with significant control

- Steven Antony Coupland Parker — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors, since 2016-04-06

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Source: Companies House register snapshot 2026-08-31, Open Government Licence v3.0. Information may have changed since that date and is not advice or a credit reference; check the official record before relying on it. Official record: https://find-and-update.company-information.service.gov.uk/company/09034459
HTML: https://firmoscan.com/company/09034459-keystone-tunnelling-limited