- Companies
- Machinery repair and installation
- Morden
- Dsi UK Limited
Dsi UK Limited
- Company number
- 03184408
- Incorporated
- 11 Apr 199630 years trading
- Registered office
- 256 Martin Way, Morden, SM4 4AW
- Nature of business
- Repair of electrical equipment; Security systems service activities
Dsi UK Limited is a 30-year-old private limited company registered in Morden, company number 03184408, one of 19 machinery repair and installation companies in Morden. 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 £32K (+460.7%) on the year before, to £25K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £61K against £18K owed within a year: 3.3 times cover.
- 3 employees on average during the year.
- 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 | £25K | £12K | £61K | £18K | 3 |
| 31 Mar 2025 | -£7,023 | £13K | £61K | £46K | 3 |
| 31 Mar 2024 | -£30K | £13K | £58K | £63K | 2 |
| 31 Mar 2023 | -£44K | £5,870 | £62K | £36K | 4 |
| 31 Mar 2022 | -£35K | £44K | £76K | £39K | 3 |
| 31 Mar 2021 | £31K | £24K | £137K | £29K | 4 |
| 31 Mar 2020 | £33K | £13K | £156K | £83K | 5 |
| 31 Mar 2019 | £36K | £122K | £92K | 4 | |
| 31 Mar 2018 | £906 | £108K | £72K | 4 | |
| 31 Mar 2017 | £330 | £84K | £89K |
Where Dsi UK Limited is registered
The registered office is in Morden (SM4), in the Merton local authority area, London. Show SM4 4AW on a map.
Other trade companies in SM4
- Penta Projects LtdFinishing trades
- Vip Autos London LtdMotor traders
- Apx Mobile Mechanics LimitedMechanics and garages
- Global Autos London LtdMotor traders
- Prana Projects LimitedBuilders
- Londons Build UK LtdBuilders
- Hilal Al Emarate Building Cont. and BLDG. Materials TRDG. LtdBuilders
- Parixon LtdElectricians
Shared registered office
30 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 Dsi UK 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
- 03184408
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 April 1996 (30 years ago)
- Registered office
- 256 Martin Way, Morden, SM4 4AW
- Nature of business
- Repair of electrical equipment (SIC 33140)
Security systems service activities (SIC 80200) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 2 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 in Morden
Other active machinery repair and installation companies registered in Morden.
- Emg Chaps Limited2020
- Great Comcat Engineering Ltd2020
- Hyper Technologies Limited2012
- Jet Agent Ltd2019
- Morden Engineering Ltd2016
- Powerpulse Experts Ltd2019
- PSV.Electromech Limited2015
- Secured Electrical Limited2025
All machinery repair and installation companies in Morden · All trades in Morden · Machinery repair and installation across the UK
Frequently asked questions
When are Dsi UK Limited's accounts due?
Dsi UK 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 Dsi UK 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 Dsi UK Limited still trading?
Dsi UK 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 Dsi UK Limited do?
Dsi UK Limited is registered under Repair of electrical equipment (SIC 33140); Security systems service activities (SIC 80200).
How old is Dsi UK Limited?
Dsi UK Limited was incorporated on 11 April 1996, 30 years ago.
What is the penalty if Dsi UK 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 Dsi UK 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.