- Companies
- Machinery repair and installation
- Southampton
- G Marine Services Ltd
G Marine Services Ltd
- Company number
- 14077734
- Incorporated
- 29 Apr 20224 years trading
- Registered office
- 162 Midanbury Lane, Southampton, SO18 4GZ
- Nature of business
- Repair and maintenance of ships and boats
G Marine Services Ltd is a 4-year-old private limited company registered in Southampton, company number 14077734, one of 224 machinery repair and installation companies in Southampton. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 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 up £14K (+72.5%) on the year before, to £33K.
- Net assets rose in 3 of 3 year-on-year comparisons on record.
- Current assets of £52K against £23K owed within a year: 2.3 times cover.
- 1 employee on average during the year.
- 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 |
|---|---|---|---|---|---|
| 31 Mar 2026 | £33K | £40K | £52K | £23K | 1 |
| 31 Mar 2025 | £19K | £17K | £30K | £16K | 1 |
| 30 Apr 2024 | £15K | £23K | £29K | £20K | 1 |
| 30 Apr 2023 | £5,477 | £20K | £28K | £23K | 1 |
Where G Marine Services Ltd is registered
The registered office is in Southampton (SO18), in the Southampton local authority area, South East. Show SO18 4GZ on a map.
Other trade companies in SO18
- Nationwide Steelfixing LtdBuilders
- Terraline LimitedSpecialist contractors
- Omni Group Holdings LtdSpecialist contractors
- Zammit Property Developments LtdProperty developers
- Shotton Marine LtdMachinery repair and installation
- Amiri Mobile Mechanic LtdMechanics and garages
- Roofing Building & Maintenance LtdSpecialist contractors
- The Tidy Life LtdCleaning companies
What happens if G Marine Services 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 14077734
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 April 2022 (4 years ago)
- Registered office
- 162 Midanbury Lane, Southampton, SO18 4GZ
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 28 April 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.
- G.E. Harding and Sons Limited1994
- Gilbert Aviation Limited2013
- Gilbert Aviation Technical Support Limited2015
- Giles Services Ltd2022
- Glenwood Developments Limited1994
- Global Ship Support Limited2021
- Gmbavs Ltd2026
- Goodman Marine Services Ltd2018
All machinery repair and installation companies in Southampton · All trades in Southampton · Machinery repair and installation across the UK
Frequently asked questions
When are G Marine Services Ltd's accounts due?
G Marine Services Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is G Marine Services Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is G Marine Services Ltd still trading?
G Marine Services 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 G Marine Services Ltd do?
G Marine Services Ltd is registered under Repair and maintenance of ships and boats (SIC 33150).
How old is G Marine Services Ltd?
G Marine Services Ltd was incorporated on 29 April 2022, 4 years ago.
What is the penalty if G Marine Services 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 G Marine Services 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.