£628
−81%vs Jun 2024Active13483867Private limited companyPoole
POSEJDON MARINE LTD
Significant control: Sebastian Tomasz Malesa (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Posejdon Marine Ltd sell?
Registered activity: Other engineering activities (SIC 71129). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
POSEJDON MARINE LTD is an active private limited company (company number 13483867) incorporated on 29 June 2021, registered in Poole. Its registered activity is other engineering activities (SIC 71129). Latest micro accounts cover the period ending 30 June 2025, showing net assets of £628, with 2 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 81% on the prior period (£3,274).
Peer position · net assets
By net assets it sits in the lower half of 3,739 comparable companies in Other (median £8,713, upper quartile £50k).
02
Ownership and control
- Mr Sebastian Tomasz Malesa
- owns 75–100% of shares
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
- 29 June 20215 yrs ago
- Next accounts due
- 30 March 2027in 155 days
- Confirmation statement due
- 13 July 2027in 260 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 71129
- Other engineering activities
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
2
+100%vs Jun 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 June 2025 | £628 | — | — | £2,602 | — | — | 2 |
| 30 June 2024 | £3,274 | — | — | £5,553 | — | — | 1 |
Current ratio1.24Current 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 £628 at 30 June 2025
- Net assets down 25% or more on the prior period-80.8% vs prior period
- Incorporated five or more years agoIncorporated 29 June 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
- Confirmation statement duein 260 days
- Next accounts duein 155 days
- Accounts period endNet assets £628 · micro accounts
- Accounts period endNet assets £3,274 · micro accounts
- Incorporated
08
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All companies incorporated on 29 June 2021 · in Jun 2021.
09
Reminders for POSEJDON MARINE LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.