- Companies
- Machinery repair and installation
- Edinburgh
- Maritime Offshore Service Ltd
Maritime Offshore Service Ltd
- Company number
- SC836061
- Incorporated
- 31 Jan 20251 year trading
- Registered office
- 5 South Charlotte Street, Edinburgh, EH2 4AN
- Nature of business
- Repair and maintenance of ships and boats; Service activities incidental to water transportation; Other engineering activities; Other professional, scientific and technical activities n.e.c.
Maritime Offshore Service Ltd is a 1-year-old private limited company registered in Edinburgh, company number SC836061, one of 108 machinery repair and installation companies in Edinburgh. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 January 2026, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Maritime Offshore Service Ltd is registered
The registered office is in Edinburgh (EH2), in the City of Edinburgh local authority area, Scotland. Show EH2 4AN on a map.
Other trade companies in EH2
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- Prim and Proper Cleaning Scotland LtdCleaning companies
- TDC Properties LtdProperty developers
- Featheredge Property Solutions LtdFacilities management
- M Woodhead Engineering LtdElectricians
- MMG Surface Solutions LtdCleaning companies
- East Side Joinery & Construction LtdBuilders
- Oryx Energy LtdElectricians
Shared registered office
167 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Maritime Offshore Service 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- SC836061
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 31 January 2025 (1 year ago)
- Registered office
- 5 South Charlotte Street, Edinburgh, EH2 4AN
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
Service activities incidental to water transportation (SIC 52220)
Other engineering activities (SIC 71129)
Other professional, scientific and technical activities n.e.c. (SIC 74909) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 30 January 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 Edinburgh
Other active machinery repair and installation companies registered in Edinburgh.
- Martin Coach and Car Care Limited2020
- Marysia Software Limited2019
- Maximum Effort Aircraft Maintenance Ltd2024
- Maxweldpros Ltd2025
- MCC Process Technology Limited2016
- Metro Auto Centre Ltd2016
- Millar Composite Services Ltd2025
- Morris M Lapsley Limited1985
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Frequently asked questions
When are Maritime Offshore Service Ltd's accounts due?
Maritime Offshore Service Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is Maritime Offshore Service Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is Maritime Offshore Service Ltd still trading?
Maritime Offshore Service 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 Maritime Offshore Service Ltd do?
Maritime Offshore Service Ltd is registered under Repair and maintenance of ships and boats (SIC 33150); Service activities incidental to water transportation (SIC 52220); Other engineering activities (SIC 71129); Other professional, scientific and technical activities n.e.c. (SIC 74909).
How old is Maritime Offshore Service Ltd?
Maritime Offshore Service Ltd was incorporated on 31 January 2025, 1 year ago.
What is the penalty if Maritime Offshore Service 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 Maritime Offshore Service 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.