£1.60m
+61%vs Jun 2024Active10529131Private limited companySouthampton
MARINE TECH SYSTEMS LIMITED
From public filings as at 31 Aug 2026; may contain errors or be out of date.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 Marine Tech Systems 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
MARINE TECH SYSTEMS LIMITED is an active private limited company (company number 10529131) incorporated on 16 December 2016, registered in Southampton. Its registered activity is engineering related scientific and technical consulting activities (SIC 71122). Latest micro accounts cover the period ending 30 June 2025, showing net assets of £1.60m, with 9 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets rose 61% on the prior period (£995k).
Peer position · net assets
By net assets it sits in the top quarter of 190 comparable companies in Southampton (median £6,568, upper quartile £49k).
02
Ownership and control
No active person with significant control is registered.
- Mr Simon Richard Illingworth
- 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
- 16 December 20169 yrs ago
- Next accounts due
- 30 March 2027in 154 days
- Confirmation statement due
- 30 December 2026in 64 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
- Micro Entity
- Size band
- MicroCompanies Act thresholds
05
Financials
Not reported
Not disclosed
9
+29%vs Jun 2024| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 June 2025 | £1.60m | — | — | £107k | — | — | 9 |
| 30 June 2024 | £995k | — | — | £85k | — | — | 7 |
Current ratio1.97Current 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 £1,600,644 at 30 June 2025
- Net assets up 10% or more on the prior period+60.9% vs prior period
- Current assets at least 1.5× creditors within one yearCurrent ratio 1.97
- Incorporated five or more years agoIncorporated 16 December 2016
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 154 days
- Confirmation statement duein 64 days
- Accounts period endNet assets £1.60m · micro accounts
- Accounts period endNet assets £995k · micro accounts
- Incorporated
08
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All companies incorporated on 16 December 2016 · in Dec 2016.
09
Reminders for MARINE TECH SYSTEMS LIMITED
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.