£31k
−38%vs Mar 2024Active11490010Private limited companyWinchester
MANNION MARINE LIMITED
Significant control: Martin Bernard Mannion (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Mannion Marine Limited sell?
Registered activity: Engineering related scientific and technical consulting activities (SIC 71122). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
MANNION MARINE LIMITED is an active private limited company (company number 11490010) incorporated on 30 July 2018, registered in Winchester. Its registered activity is engineering related scientific and technical consulting activities (SIC 71122). Latest small accounts cover the period ending 31 March 2025, showing net assets of £31k and cash of £11k, with 2 employees on average. Net assets fell 38% on the prior period (£50k).
Peer position · net assets
By net assets it sits in the upper half of 190 comparable companies in Southampton (median £6,568, upper quartile £49k).
02
Ownership and control
- Mr Martin Bernard Mannion
- 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
- 30 July 20188 yrs ago
- Next accounts due
- 31 December 2026in 65 days
- Confirmation statement due
- 13 August 2027in 290 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 71122
- Engineering related scientific and technical consulting activities
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£11k
−61%vs Mar 2024Not reported
2
No changevs Mar 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 March 2025 | £31k | £11k | £96k | — | — | £186k | 2 |
| 31 March 2024 | £50k | £28k | £89k | — | — | £174k | 2 |
| 31 March 2023 | — | — | — | — | — | — | — |
Cash per employee£5,356Cash ÷ 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 £31,298 at 31 March 2025
- Net assets down 25% or more on the prior period-37.6% vs prior period
- Three or more accounting periods on record3 periods on record
- Incorporated five or more years agoIncorporated 30 July 2018
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 290 days
- Next accounts duein 65 days
- Accounts period endNet assets £31k · small accounts
- Accounts period endNet assets £50k · small accounts
- Accounts period end
- Incorporated
08
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- LAADOL ENGINEERING LTDSouthampton · inc. Aug 2018
- HNX LIMITEDSouthampton · inc. Jul 2018
- BUTLER ENGINEERING CONTRACTING SERVICES LIMITEDSouthampton · inc. Jun 2018
- ENVIROS SURVEY & CONSULTANCY LTDSouthampton · inc. Sept 2018
- BLOCKSTREAM LTDWinchester · inc. Jun 2018
All companies incorporated on 30 July 2018 · in Jul 2018.
09
Reminders for MANNION MARINE LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.