- Companies
- Machinery repair and installation
- Cuan Marine Services Limited
Cuan Marine Services Limited
- Company number
- NI610333
- Incorporated
- 12 Dec 201114 years trading
- Registered office
- 101 Rubane Road, Kircubbin, BT22 1AU
- Nature of business
- Repair of other equipment
Cuan Marine Services Limited is a 14-year-old private limited company registered in Kircubbin, company number NI610333, one of the UK's machinery repair and installation companies. 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 £5,076 (+2.2%) on the year before, to £233K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £274K against £277K owed within a year: 1.0 times cover.
- 5 employees on average, down from 8 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £233K | £274K | £277K | 5 | |
| 31 Mar 2025 | £228K | £146K | £125K | 8 | |
| 31 Mar 2024 | £214K | £87K | £92K | 9 | |
| 31 Mar 2023 | £280K | £121K | £95K | 8 | |
| 31 Mar 2022 | £240K | £99K | £85K | 9 | |
| 31 Mar 2021 | £248K | £162K | £180K | 7 | |
| 31 Mar 2020 | £247K | £124K | £249K | £352K | 14 |
| 31 Mar 2019 | £170K | £128K | £68K | ||
| 31 Mar 2018 | £179K | £111K | £49K | ||
| 31 Mar 2017 | £206K | £127K | £63K |
Public contracts won
Cuan Marine Services Limited has 2 public sector contract awards on record; the ones with their own published value total £756K, from 2023 to 2026. Source: Contracts Finder and Find a Tender award notices. These were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Department for Communities2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Department for Communities | C001224APR-River Lagan Maintenance Works Contract 2026 | £360K | 2 Jun 2026 |
| Department for Communities | ID 4747209 - DfC - Bridge Cleaning - Lagan Weir Cycle and Pedestrian Bridge | £396K | 9 Aug 2023 |
Where Cuan Marine Services Limited is registered
The registered office is in Kircubbin (BT22), in the Ards and North Down local authority area, Northern Ireland. Show BT22 1AU on a map.
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- Ards Properties LtdBuilders
- Lower Ards Autos LtdMechanics and garages
- Jce27 LtdElectricians
- Quiki-Leaks LimitedPlumbers and heating engineers
- Blessed Clean Homes LimitedCleaning companies
- La Croft Civils LtdCivil engineering
What happens if Cuan Marine Services Limited 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
- NI610333
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 December 2011 (14 years ago)
- Registered office
- 101 Rubane Road, Kircubbin, BT22 1AU
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 12 December 2025
- Charges (mortgages)
- 3 outstanding of 3 registered
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
Other active machinery repair and installation companies.
Frequently asked questions
When are Cuan Marine Services Limited's accounts due?
Cuan Marine Services Limited's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is Cuan Marine Services Limited'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 Cuan Marine Services Limited still trading?
Cuan Marine Services Limited 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 Cuan Marine Services Limited do?
Cuan Marine Services Limited is registered under Repair of other equipment (SIC 33190).
How old is Cuan Marine Services Limited?
Cuan Marine Services Limited was incorporated on 12 December 2011, 14 years ago.
Has Cuan Marine Services Limited won public sector contracts?
Yes. Cuan Marine Services Limited has 2 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £756K), most recently from Department for Communities.
What is the penalty if Cuan Marine Services Limited 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 Cuan Marine Services Limited 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.