- Companies
- Machinery repair and installation
- Southampton
- Marine Dynamics Ltd
Marine Dynamics Ltd
- Company number
- 16237251
- Incorporated
- 7 Feb 20251 year trading
- Registered office
- 6 Inglenook 17 Ingle Glen, Dibden Purlieu, Southampton, SO45 4ND
- Nature of business
- Repair and maintenance of ships and boats
Marine Dynamics Ltd is a 1-year-old private limited company registered in Southampton, company number 16237251, one of 224 machinery repair and installation companies in Southampton. Its next accounts are due at Companies House on 7 November 2026, and its first CT600 is due at HMRC on 6 February 2027.
Key dates
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Marine Dynamics Ltd is registered
The registered office is in Southampton (SO45), in the New Forest local authority area, South East. Show SO45 4ND on a map.
Other trade companies in SO45
- PRG Installation Services LimitedMachinery repair and installation
- Off the Rails Paintworks LtdPainters and decorators
- Hpexterior LtdCleaning companies
- Amt Automotive (Dibden) LtdMotor traders
- HP Exterior Clean LtdCleaning companies
- Valmora Projects LtdProperty developers
- New Leaf Naturescapes LtdLandscapers and gardeners
- Southern Vehicle Services LtdMechanics and garages
What happens if Marine Dynamics Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 7 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 8 Nov 2026 to 7 Dec 2026 | £150 |
| 1 to 3 months late | 8 Dec 2026 to 7 Feb 2027 | £375 |
| 3 to 6 months late | 8 Feb 2027 to 7 May 2027 | £750 |
| More than 6 months late | From 8 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 16237251
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 February 2025 (1 year ago)
- Registered office
- 6 Inglenook 17 Ingle Glen, Dibden Purlieu, Southampton, SO45 4ND
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
- Year end
- 28 February (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 6 February 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Southampton
Other active machinery repair and installation companies registered in Southampton.
- Marine Labour Services MLS Ltd2014
- Marine Machine U.K. Limited2017
- Marine Results International Limited2009
- Maritime Yacht Services Ltd2016
- Mars Eng. Ltd2026
- Marshall Elevator Services Ltd2007
- Mech-Elec Marine Ltd2019
- Meon Valley Mowers Ltd2021
All machinery repair and installation companies in Southampton · All trades in Southampton · Machinery repair and installation across the UK
Frequently asked questions
When are Marine Dynamics Ltd's accounts due?
Marine Dynamics Ltd's next accounts are due at Companies House by 7 November 2026 (in 25 days), covering the period to 28 February 2026.
When is Marine Dynamics Ltd's CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 6 February 2026, due by 6 February 2027, and one for the period to 28 February 2026, due by 28 February 2027. Corporation tax is payable 9 months and 1 day after the end of each.
Is Marine Dynamics Ltd still trading?
Marine Dynamics Ltd is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Marine Dynamics Ltd do?
Marine Dynamics Ltd is registered under Repair and maintenance of ships and boats (SIC 33150).
How old is Marine Dynamics Ltd?
Marine Dynamics Ltd was incorporated on 7 February 2025, 1 year ago.
What is the penalty if Marine Dynamics Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Marine Dynamics Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.