- Companies
- Civil engineering
- Cardiff
- Connex Network Management Ltd
Connex Network Management Ltd
- Company number
- 15989996
- Incorporated
- 1 Oct 20242 years trading
- Registered office
- 4TH Floor 14 Museum Place, City Centre, Cardiff, CF10 3BH
- Nature of business
- Construction of roads and motorways; Other transportation support activities
Connex Network Management Ltd is a 2-year-old private limited company registered in Cardiff, company number 15989996, one of 89 civil engineering contractors in Cardiff. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 October 2025, as filed at Companies House.
Where Connex Network Management Ltd is registered
The registered office is in Cardiff (CF10), in the Cardiff local authority area, Wales. Show CF10 3BH on a map.
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- Eclipse Construction Group LtdPlasterers
- DWR Plumbing LtdPlumbers and heating engineers
- CF Glazing LtdGlaziers
- Regency Construction Group LtdProperty developers
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Also registered at this address
5 other companies use the same registered office as Connex Network Management Ltd.
- BRS Electrical Solutions LtdElectricians
- Eloids Cleaning Services LimitedCleaning companies
- Genesis Construction & Maintenance LtdBuilders
- Newstone Resin and Paving LtdBuilders
- Solvic LtdSpecialist contractors
What happens if Connex Network Management 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 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 15989996
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 October 2024 (2 years ago)
- Registered office
- 4TH Floor 14 Museum Place, City Centre, Cardiff, CF10 3BH
- Nature of business
- Construction of roads and motorways (SIC 42110)
Other transportation support activities (SIC 52290) - Year end
- 31 October (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 19 February 2026
- Previous names
- Madlan Services UK Ltd (until 30 Dec 2025)
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 Cardiff
Other active civil engineering contractors registered in Cardiff.
- CP Rail Track Land Limited2018
- CPC Services (Cardiff) Limited2026
- D. Herbert (Builders) Limited1956
- Dajf Rail Ltd2017
- Daves Tellycoms Ltd2021
- Davilor Construction Services Ltd2018
- Ddo Rail Services Limited2018
- Divitiae Pecunia Limited2023
All civil engineering contractors in Cardiff · All trades in Cardiff · Civil engineering across the UK
Frequently asked questions
When are Connex Network Management Ltd's accounts due?
Connex Network Management Ltd's next accounts are due at Companies House by 31 July 2027 (in 292 days), covering the period to 31 October 2026.
When is Connex Network Management Ltd's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Connex Network Management Ltd still trading?
Connex Network Management 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 Connex Network Management Ltd do?
Connex Network Management Ltd is registered under Construction of roads and motorways (SIC 42110); Other transportation support activities (SIC 52290).
How old is Connex Network Management Ltd?
Connex Network Management Ltd was incorporated on 1 October 2024, 2 years ago.
What is the penalty if Connex Network Management 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 Connex Network Management 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.