- Companies
- Machinery repair and installation
- Penzance
- South West Marine Ltd
South West Marine Ltd
- Company number
- 14172524
- Incorporated
- 14 Jun 20224 years trading
- Registered office
- 32 Horizon Fields, Sennen, Penzance, TR19 7AU
- Nature of business
- Repair and maintenance of ships and boats; Other engineering activities
South West Marine Ltd is a 4-year-old private limited company registered in Penzance, company number 14172524, one of 7 machinery repair and installation companies in Penzance. Its next accounts are due at Companies House on 31 March 2028, and the CT600 for the period to 30 June 2027 is due at HMRC on 30 June 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £3,179 (-100%) on the year before, to £1.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 4 years, 2023 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2026 | £1 | £24K | 2 | ||
| 30 Jun 2025 | £3,180 | £26K | 1 | ||
| 30 Jun 2024 | £8,346 | £49K | £47K | 2 | |
| 30 Jun 2023 | £1 | £26K | £28K | 2 |
Where South West Marine Ltd is registered
The registered office is in Penzance (TR19), in the Cornwall local authority area, South West. Show TR19 7AU on a map.
Other trade companies in TR19
- Madd Motors LimitedMechanics and garages
- Martins’ Marquees LtdSpecialist contractors
- Jerry Harvey Motor Repairs LimitedMechanics and garages
- Ornette Spenceley Design LtdPainters and decorators
- Logan Cleaning Services LtdCleaning companies
- Cape Cornwall Builders LtdBuilders
- Insite Construction Management LtdInstallers
- Coast2Coast Construction LtdBuilders
What happens if South West Marine 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 31 March 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2028 to 30 Apr 2028 | £150 |
| 1 to 3 months late | 1 May 2028 to 30 Jun 2028 | £375 |
| 3 to 6 months late | 1 Jul 2028 to 30 Sep 2028 | £750 |
| More than 6 months late | From 1 Oct 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2028 | £200 |
| 3 months late | 30 Sep 2028 | another £200 |
| 6 months late | 30 Dec 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 2029 | 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
- 14172524
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 June 2022 (4 years ago)
- Registered office
- 32 Horizon Fields, Sennen, Penzance, TR19 7AU
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
Other engineering activities (SIC 71129) - Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2026
- Last confirmation statement
- 13 June 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 Penzance
Other active machinery repair and installation companies registered in Penzance.
- A2 Rigging Limited1996
- J.W.Pearce Agricultural Services Limited2013
- LT Painters Ltd2024
- M J Marine Group Ltd2011
- Penwith Marine Services Limited2016
- Sandy Cove Boatyard Ltd2020
All machinery repair and installation companies in Penzance · All trades in Penzance · Machinery repair and installation across the UK
Frequently asked questions
When are South West Marine Ltd's accounts due?
South West Marine Ltd's next accounts are due at Companies House by 31 March 2028 (in 535 days), covering the period to 30 June 2027.
When is South West Marine Ltd's CT600 due?
The CT600 for the period to 30 June 2027 is due at HMRC by 30 June 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2028.
Is South West Marine Ltd still trading?
South West Marine 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 South West Marine Ltd do?
South West Marine Ltd is registered under Repair and maintenance of ships and boats (SIC 33150); Other engineering activities (SIC 71129).
How old is South West Marine Ltd?
South West Marine Ltd was incorporated on 14 June 2022, 4 years ago.
What is the penalty if South West Marine 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 South West Marine 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.