- Companies
- Specialist contractors
- London
- Ecogen Energy Group Ltd
Ecogen Energy Group Ltd
- Company number
- 15430264
- Incorporated
- 22 Jan 20242 years trading
- Registered office
- 167-169 Great Portland Street, Great Portland Street, London, W1W 5PF
- Nature of business
- Other specialised construction activities n.e.c.; Wholesale of machine tools; Wholesale of mining, construction and civil engineering machinery
Ecogen Energy Group Ltd is a 2-year-old private limited company registered in London, company number 15430264, one of 4,318 specialist construction companies in London. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 January 2025, as filed at Companies House.
Where Ecogen Energy Group Ltd is registered
The registered office is in London (W1W), in the Westminster local authority area, London. Show W1W 5PF on a map.
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Shared registered office
1,494 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 Ecogen Energy Group 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 15430264
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 January 2024 (2 years ago)
- Registered office
- 167-169 Great Portland Street, Great Portland Street, London, W1W 5PF
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
Wholesale of machine tools (SIC 46620)
Wholesale of mining, construction and civil engineering machinery (SIC 46630) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 18 December 2025
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in London
Other active specialist construction companies registered in London.
- Ecombuild Construction Ltd2025
- Economic Construction Ltd2019
- Ecopower Zone Limited2024
- Ecovia Build Limited2016
- Ecp Partnership Ltd2016
- Ed Properties Consultancy Limited2025
- Eden Brothers Homes Limited2022
- Edison & Co Limited2015
All specialist construction companies in London · All trades in London · Specialist contractors across the UK
Frequently asked questions
When are Ecogen Energy Group Ltd's accounts due?
Ecogen Energy Group Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is Ecogen Energy Group Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is Ecogen Energy Group Ltd still trading?
Ecogen Energy Group 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 Ecogen Energy Group Ltd do?
Ecogen Energy Group Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999); Wholesale of machine tools (SIC 46620); Wholesale of mining, construction and civil engineering machinery (SIC 46630).
How old is Ecogen Energy Group Ltd?
Ecogen Energy Group Ltd was incorporated on 22 January 2024, 2 years ago.
What is the penalty if Ecogen Energy Group 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 Ecogen Energy Group 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.