- Companies
- Machinery repair and installation
- Prestwick
- D.D.Z. Marine Limited
D.D.Z. Marine Limited
- Company number
- SC125077
- Incorporated
- 18 May 199036 years trading
- Registered office
- 104 Main Street, Prestwick, Ayrshire, KA9 1PA
- Nature of business
- Repair and maintenance of ships and boats; Retail sale of sports goods, fishing gear, camping goods, boats and bicycles
D.D.Z. Marine Limited is a 36-year-old private limited company registered in Prestwick, company number SC125077, one of 18 machinery repair and installation companies in Prestwick. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 2027.
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 £786 (+0.2%) on the year before, to £432K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £620K against £166K owed within a year: 3.7 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | £432K | £79K | £620K | £166K | 0 |
| 30 Nov 2024 | £431K | £293K | £1M | £543K | 0 |
| 30 Nov 2023 | £421K | £412K | £1.2M | £782K | 16 |
| 30 Nov 2022 | £366K | £529K | £1.1M | £717K | 15 |
| 30 Nov 2021 | £307K | £376K | £730K | £420K | 10 |
| 30 Nov 2020 | £262K | £448K | £720K | £459K | 10 |
| 30 Nov 2019 | £177K | £108K | £611K | £500K | |
| 30 Nov 2018 | £177K | £98K | £656K | £556K | 10 |
| 30 Nov 2017 | £165K | £91K | £358K | £279K | 12 |
| 30 Nov 2016 | £207K | £320K | £535K | £428K |
Where D.D.Z. Marine Limited is registered
The registered office is in Prestwick (KA9), in the South Ayrshire local authority area, Scotland. Show KA9 1PA on a map.
Other trade companies in KA9
- R.McCulloch Electrical Services LtdElectricians
- Vantage Rope Access LtdSpecialist contractors
- McDowall Aviation Consulting LimitedMachinery repair and installation
- Keir Air Ltd. LtdMachinery repair and installation
- J Smith Exterior Cleaning LtdCleaning companies
- Devo Group LtdElectricians
- TS Aero Maintenance Services LtdMachinery repair and installation
- Northwing Aerospace LtdMachinery repair and installation
Also registered at this address
2 other companies use the same registered office as D.D.Z. Marine Limited.
- Ayrshire Fencing & Gardening LimitedLandscapers and gardeners
- Craig Brands Electrical LimitedElectricians
What happens if D.D.Z. Marine 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 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- SC125077
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 18 May 1990 (36 years ago)
- Registered office
- 104 Main Street, Prestwick, Ayrshire, KA9 1PA
- Nature of business
- Repair and maintenance of ships and boats (SIC 33150)
Retail sale of sports goods, fishing gear, camping goods, boats and bicycles (SIC 47640) - Year end
- 30 November (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 6 September 2026
- 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 in Prestwick
Other active machinery repair and installation companies registered in Prestwick.
- First Lift Engineers Ltd.2004
- Imt Aviation Scotland Limited2004
- JC Aerostructures Ltd2022
- Keir Air Ltd. Ltd2026
- McDowall Aviation Consulting Limited2026
- McNeeaviation Limited2024
- P Duffey Services Ltd2016
- Pik(Premindrakiyaan)Aero Services Limited2022
All machinery repair and installation companies in Prestwick · All trades in Prestwick · Machinery repair and installation across the UK
Frequently asked questions
When are D.D.Z. Marine Limited's accounts due?
D.D.Z. Marine Limited's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is D.D.Z. Marine Limited's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is D.D.Z. Marine Limited still trading?
D.D.Z. Marine 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 D.D.Z. Marine Limited do?
D.D.Z. Marine Limited is registered under Repair and maintenance of ships and boats (SIC 33150); Retail sale of sports goods, fishing gear, camping goods, boats and bicycles (SIC 47640).
How old is D.D.Z. Marine Limited?
D.D.Z. Marine Limited was incorporated on 18 May 1990, 36 years ago.
What is the penalty if D.D.Z. Marine 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 D.D.Z. Marine 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.