£55k
−12%vs May 2024Active03164942Private limited companyPreston
SUB SURFACE LABORATORIES LIMITED
Significant control: Christopher Alexander Marsden (75–100%), Anna Louise Marsden (25–50%) and 1 more
From public filings as at 31 Aug 2026; may contain errors or be out of date. Verify at Companies House · Terms
Watch this company
Get an email when Companies House records a change for Sub Surface Laboratories Limited: status, filings, accounts, officers or owners. Free.
Not live yet: alerts start by 15 December 2026. We store your email and this company number only, for these alerts. If alerts don’t launch, we tell you and delete your address. Privacy
Coming soon · product and service lists
What does Sub Surface Laboratories Limited sell?
Registered activity: Technical testing and analysis (SIC 71200). We’re building product and service lists for UK companies. Get this one when it’s ready.
One email, only about this. If we don’t launch within 60 days we’ll tell you. Privacy
01
Summary
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).
Peer position · net assets
By net assets it sits in the top quarter of 69 comparable companies in Lancashire (median £13k, upper quartile £54k).
02
Ownership and control
- Mr Christopher Alexander Marsden
- owns 75–100% of shares
- Ms Anna Louise Marsden
- owns 25–50% of shares
- holds 25–50% of voting rights
- Mr David Christopher Marsden
- 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
- 27 February 199630 yrs ago
- Next accounts due
- 28 February 2027in 127 days
- Confirmation statement due
- 13 March 2027in 140 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 71200
- Technical testing and analysis
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
3
No changevs May 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 May 2025 | £55k | — | — | £248k | — | — | 3 |
| 31 May 2024 | £63k | — | — | £246k | — | — | 3 |
Current ratio1.22Current 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 £55,048 at 31 May 2025
- Incorporated five or more years agoIncorporated 27 February 1996
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 140 days
- Next accounts duein 127 days
- Accounts period endNet assets £55k · micro accounts
- Accounts period endNet assets £63k · micro accounts
- Incorporated
08
Similar companies in Lancashire
- AUTOMOTIVE CONSULTING ENGINEERS LTDSouthport · inc. Mar 1997
- A D E SYSTEMS LIMITEDChorley · inc. Apr 1992
- EURO AVIATION SERVICES LIMITEDChorley · inc. Jul 2000
- L G TECHNICAL SERVICES LIMITEDUlverston · inc. Nov 2000
- ELLIS QUADS LIMITEDKendal · inc. May 2003
- BENTHAM GEOCONSULTING LIMITEDLancaster · inc. Jun 2003
All companies incorporated on 27 February 1996 · in Feb 1996.
09
Reminders for SUB SURFACE LABORATORIES LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.