£235k
−1%vs Feb 2024Active13899008Private limited companySouthampton
SELF MARINE TECHNOLOGY LTD
Significant control: William Rodney Self (50–75%), Carolyn Self (25–50%)
From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Self Marine Technology Ltd sell?
Registered activity: Manufacture of electronic components (SIC 26110). We’re building product and service lists for UK companies. Get this one when it’s ready.
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01
Summary
SELF MARINE TECHNOLOGY LTD is an active private limited company (company number 13899008) incorporated on 7 February 2022, registered in Southampton. Its registered activity is manufacture of electronic components (SIC 26110). Latest micro accounts cover the period ending 28 February 2025, showing net assets of £235k, 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 1% on the prior period (£238k).
Peer position · net assets
By net assets it sits in the upper half of 1,077 comparable companies in the UK (median £13k, upper quartile £342k).
02
Ownership and control
- Mr William Rodney Self
- owns 50–75% of shares
- holds 50–75% of voting rights
- can appoint or remove directors
- Mrs Carolyn Self
- owns 25–50% of shares
- holds 25–50% 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
- 7 February 20224 yrs ago
- Next accounts due
- 28 November 2026in 35 days
- Confirmation statement due
- 21 February 2027in 120 days
Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.
04
Activity
- SIC 26110
- Manufacture of electronic components
- Accounts type
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
2
No changevs Feb 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 28 February 2025 | £235k | — | — | — | — | — | 2 |
| 29 February 2024 | £238k | — | — | — | — | — | 2 |
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 £235,483 at 28 February 2025
- Incorporated two to five years agoIncorporated 7 February 2022
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 120 days
- Next accounts duein 35 days
- Accounts period endNet assets £235k · micro accounts
- Accounts period endNet assets £238k · micro accounts
- Incorporated
08
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- ADANAC TECHNOLOGIES LIMITEDRomsey · inc. Apr 2026
- BECQUIA HOLDINGS LTDSouthampton · inc. Mar 2016
All companies incorporated on 7 February 2022 · in Feb 2022.
09
Reminders for SELF MARINE TECHNOLOGY LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.