- Companies
- Civil engineering
- London
- Ecocurrent Ltd
Ecocurrent Ltd
- Company number
- 15544029
- Incorporated
- 6 Mar 20242 years trading
- Registered office
- 4TH Floor Silverstream House, 45 Fitzroy Street, London, W1T 6EB
- Nature of business
- Construction of other civil engineering projects n.e.c.; Electrical installation; Other letting and operating of own or leased real estate; Other residential care activities n.e.c.
Ecocurrent Ltd is a 2-year-old private limited company registered in London, company number 15544029, one of 1,853 civil engineering contractors in London. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Where Ecocurrent Ltd is registered
The registered office is in London (W1T), in the Camden local authority area, London. Show W1T 6EB on a map.
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Shared registered office
53 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 Ecocurrent 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 15544029
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 March 2024 (2 years ago)
- Registered office
- 4TH Floor Silverstream House, 45 Fitzroy Street, London, W1T 6EB
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Electrical installation (SIC 43210)
Other letting and operating of own or leased real estate (SIC 68209)
Other residential care activities n.e.c. (SIC 87900) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 22 September 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in London
Other active civil engineering contractors registered in London.
- Ecuador Infrastructure Partners Ltd2024
- Eddie Sekabembe Eng Ltd2018
- Edmond Logistics Ltd2016
- Edse Design Limited2020
- Ee Assessments Ltd2026
- Egemen Construction Ltd2021
- Eigra Group Ltd2023
- Eirewest Construction Limited2021
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Ecocurrent Ltd's accounts due?
Ecocurrent Ltd's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Ecocurrent Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Ecocurrent Ltd still trading?
Ecocurrent 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 Ecocurrent Ltd do?
Ecocurrent Ltd is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Electrical installation (SIC 43210); Other letting and operating of own or leased real estate (SIC 68209); Other residential care activities n.e.c. (SIC 87900).
How old is Ecocurrent Ltd?
Ecocurrent Ltd was incorporated on 6 March 2024, 2 years ago.
What is the penalty if Ecocurrent 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 Ecocurrent 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.