- Companies
- Civil engineering
- London
- Integren Enfield Ltd
Integren Enfield Ltd
- Company number
- 16514436
- Incorporated
- 12 Jun 20251 year trading
- Registered office
- C/O Fieldfisher Riverbank House, 2 Swan Lane, London, EC4R 3TT
- Nature of business
- Construction of utility projects for electricity and telecommunications
Integren Enfield Ltd is a 1-year-old private limited company registered in London, company number 16514436, 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
This company has not filed accounts yet. First accounts are due 21 months after incorporation, and the first period can run longer than a year.
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Where Integren Enfield Ltd is registered
The registered office is in London (EC4R), in the City of London local authority area, London. Show EC4R 3TT on a map.
Other trade companies in EC4R
- Omega Group LtdProperty developers
- Giga 42 LimitedBuilders
- Griner Engineering Services UK LtdCivil engineering
- Enfield Digital Infrastructure LtdCivil engineering
- Integren UK LtdCivil engineering
- Capstone Acquisition & Development LimitedProperty developers
- Heliotec Energy LimitedElectricians
- Greenarch Energy LimitedCivil engineering
Also registered at this address
5 other companies use the same registered office as Integren Enfield Ltd.
- Enfield Digital Infrastructure LtdCivil engineering
- Griner Engineering Services UK LtdCivil engineering
- Integren UK LtdCivil engineering
- Junction 34 LimitedProperty developers
- Ursanav UK LimitedMachinery repair and installation
What happens if Integren Enfield 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
- 16514436
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 June 2025 (1 year ago)
- Registered office
- C/O Fieldfisher Riverbank House, 2 Swan Lane, London, EC4R 3TT
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- No accounts filed yet
- Last confirmation statement
- 11 June 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.
- Integren UK Ltd2025
- International Road Safety Ltd2019
- Inversiones Alagar Ltd2025
- Io Tourist Ltd2026
- Ion Lifting Ltd2020
- Ionuther Limited2014
- Iq Energy Law Limited2021
- Iraz Ltd2016
All civil engineering contractors in London · All trades in London · Civil engineering across the UK
Frequently asked questions
When are Integren Enfield Ltd's accounts due?
Integren Enfield Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Integren Enfield 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 Integren Enfield Ltd still trading?
Integren Enfield 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 Integren Enfield Ltd do?
Integren Enfield Ltd is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Integren Enfield Ltd?
Integren Enfield Ltd was incorporated on 12 June 2025, 1 year ago.
What is the penalty if Integren Enfield 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 Integren Enfield 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.