−£9,221
−1034%vs Aug 2024Active09160480Private limited companyPorthmadog
EFSUBSEA LIMITED
Significant control: Elfyn French (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From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Efsubsea Limited sell?
Registered activity: Marine aquaculture (SIC 03210). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
EFSUBSEA LIMITED is an active private limited company (company number 09160480) incorporated on 5 August 2014, registered in Porthmadog. Its registered activity is marine aquaculture (SIC 03210). Latest small accounts cover the period ending 31 August 2025, showing net assets of −£9,221 and cash of £26k, with 2 employees on average. Net assets fell 1034% on the prior period (£987).
Peer position · net assets
By net assets it sits in the lower half of 139 comparable companies in Other (median £2, upper quartile £52k).
02
Ownership and control
- Mr Elfyn French
- 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
- 5 August 201412 yrs ago
- Next accounts due
- 31 May 2027in 220 days
- Confirmation statement due
- 19 August 2027in 300 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 03210
- Marine aquaculture
- Accounts type
- Total Exemption Full
- Size band
- MicroCompanies Act thresholds
05
Financials
£26k
−50%vs Aug 2024Not reported
2
No changevs Aug 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 31 August 2025 | −£9,221 | £26k | £0 | — | — | — | 2 |
| 31 August 2024 | £987 | £52k | £290 | — | — | — | 2 |
Cash per employee£13kCash ÷ 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 below zeroNet assets £-9,221 at 31 August 2025
- Net assets down 25% or more on the prior period-1034.2% vs prior period
- Incorporated five or more years agoIncorporated 5 August 2014
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 300 days
- Next accounts duein 220 days
- Accounts period endNet liabilities £9,221 · small accounts
- Accounts period endNet assets £987 · small accounts
- Incorporated
08
Similar companies in the UK
- ANCARVA MARINE CONSULTANCY LIMITEDTruro · inc. Aug 2014
- MAST-SCOTLANDDunfermline · inc. Sept 2014
- LIVE REEF LIMITEDTiverton · inc. Sept 2014
- LOBSTORE LIMITEDScarborough · inc. Jun 2014
- LOCH HOURN SCALLOPS LIMITEDKyle · inc. Jun 2014
- CHESHIRE MARINE SERVICES LTDSandbach · inc. May 2014
All companies incorporated on 5 August 2014 · in Aug 2014.
09
Reminders for EFSUBSEA LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.