£329k
+56%vs Oct 2024Active13699670Private limited companySouthampton
MARINER PROJECTS LIMITED
Significant control: Thomas David Mariner (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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: Construction of commercial buildings (SIC 41201). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
MARINER PROJECTS LIMITED is an active private limited company (company number 13699670) incorporated on 22 October 2021, registered in Southampton. Its registered activity is construction of commercial buildings (SIC 41201). Latest small accounts cover the period ending 31 October 2025, showing net assets of £329k and cash of £39k, with 2 employees on average. Net assets rose 56% on the prior period (£211k).
Peer position · net assets
By net assets it sits in the top quarter of 179 comparable companies in Southampton (median £6,910, upper quartile £74k).
02
Ownership and control
- Mr Thomas David Mariner
- owns 75–100% of shares
- holds 75–100% of voting rights
- can appoint or remove directors
- Mr Joshua William Mariner
- has significant influence or control
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
- 22 October 20215 yrs ago
- Next accounts due
- 31 July 2027in 281 days
- Confirmation statement due
- 5 November 2026in 13 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 41201
- Construction of commercial buildings
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£39k
−74%vs Oct 2024Not reported
2
No changevs Oct 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 October 2025 | £329k | £39k | £312k | £43k | — | — | 2 |
| 31 October 2024 | £211k | £150k | £105k | £61k | — | — | 2 |
Current ratio8.07Current assets ÷ creditors within one year
Cash per employee£19kCash ÷ average employees
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.
06
Filing and accounts signals
- Net assets above zeroNet assets £329,298 at 31 October 2025
- Net assets up 10% or more on the prior period+55.8% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 8.07
- Incorporated two to five years agoIncorporated 22 October 2021
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 281 days
- Confirmation statement duein 13 days
- Accounts period endNet assets £329k · small accounts
- Accounts period endNet assets £211k · small accounts
- Incorporated
08
Similar companies in Southampton
- HAZEL BROOK BRICKWORK LTDSouthampton · inc. Oct 2021
- PINES PROPERTY DORSET LIMITEDChandlers Ford · inc. Nov 2021
- TRINITY LETS LTDSouthampton · inc. Dec 2021
- CROCMAZANLIMITED LIMITEDSouthampton · inc. Dec 2021
- PETCU CONSTRUCTIONS LTDSouthampton · inc. Dec 2021
- A1 UK CONTRACTORS LTDSouthampton · inc. Aug 2021
All companies incorporated on 22 October 2021 · in Oct 2021.
09
Reminders for MARINER PROJECTS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.