# SUB SURFACE LABORATORIES LIMITED (03164942)

> SUB SURFACE LABORATORIES LIMITED is an active private limited company (company number 03164942) incorporated on 27 February 1996, registered in Preston. Its registered activity is technical testing and analysis (SIC 71200). Latest micro accounts cover the period ending 31 May 2025, showing net assets of £55k, with 3 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 12% on the prior period (£63k).

- Status: Active
- Incorporated: 1996-02-27
- Registered office: Preston, PR2 2QS
- SIC 71200: Technical testing and analysis
- Next accounts due: 2027-02-28
- Confirmation statement due: 2027-03-13
- Accounts type: MICRO ENTITY

By net assets it sits in the top quarter of 69 comparable companies in Lancashire (median £13k, upper quartile £54k).

## Accounts (as filed)

| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 2025-05-31 | £55k | — | — | £248k | — | — | 3 |
| 2024-05-31 | £63k | — | — | £246k | — | — | 3 |

current ratio 1.22; size band micro.

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

- Net assets above zero: Net assets £55,048 at 31 May 2025
- Incorporated five or more years ago: Incorporated 27 February 1996

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

## Persons with significant control

- Mr Christopher Alexander Marsden — owns 75–100% of shares, since 2016-04-06
- Ms Anna Louise Marsden — owns 25–50% of shares; holds 25–50% of voting rights, since 2023-12-01
- Mr David Christopher Marsden — owns 25–50% of shares; holds 25–50% of voting rights, since 2023-12-01

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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/03164942
HTML: https://firmoscan.com/company/03164942-sub-surface-laboratories-limited