- Companies
- Civil engineering
- St Asaph
- Corefortress Data Ltd.
Corefortress Data Ltd.
- Company number
- 17447282
- Incorporated
- 8 Sep 2026
- Registered office
- Suite 97C, Bowen Court, ST Asaph Business Park, St Asaph, LL17 0JE
- Nature of business
- Construction of utility projects for electricity and telecommunications
Corefortress Data Ltd. is a newly incorporated private limited company registered in St Asaph, company number 17447282, one of 18 civil engineering contractors in St Asaph. Its next accounts are due at Companies House on 8 June 2028, and its first CT600 is due at HMRC on 7 September 2028.
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 Corefortress Data Ltd. is registered
The registered office is in St Asaph (LL17), in the Denbighshire local authority area, Wales. Show LL17 0JE on a map.
Other trade companies in LL17
- Neil's Wheels Tyre Services LtdMechanics and garages
- Baxter H&S LtdCivil engineering
- SSX Construction LtdBuilders
- Rotorix LtdCleaning companies
- Gwyn Evans CVR LimitedMechanics and garages
- Spencer Civils LimitedCivil engineering
- Optimal Home Clean LtdCleaning companies
- E M Renewables LtdCivil engineering
Also registered at this address
9 other companies use the same registered office as Corefortress Data Ltd..
- 360 Wind Services LtdInstallers
- Baxter H&S LtdCivil engineering
- Cambrian Autospares LimitedMotor traders
- E M Renewables LtdCivil engineering
- P L Hambi LtdInstallers
- Rab Renewables LtdCivil engineering
- Renewable Lifting Solutions LtdCivil engineering
- Richie Morris LtdPlasterers
- Sinfield Power Services LtdElectricians
What happens if Corefortress Data 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 8 June 2028.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 9 Jun 2028 to 8 Jul 2028 | £150 |
| 1 to 3 months late | 9 Jul 2028 to 8 Sep 2028 | £375 |
| 3 to 6 months late | 9 Sep 2028 to 8 Dec 2028 | £750 |
| More than 6 months late | From 9 Dec 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2028 | £200 |
| 3 months late | 30 Dec 2028 | another £200 |
| 6 months late | 30 Mar 2029 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 17447282
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 September 2026
- Registered office
- Suite 97C, Bowen Court, ST Asaph Business Park, St Asaph, LL17 0JE
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 30 September (accounting reference date)
- Accounts type
- No accounts filed yet
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 St Asaph
Other active civil engineering contractors registered in St Asaph.
- Coreworks Groundwork Ltd2025
- E M Renewables Ltd2026
- GW Marine Systems Limited2001
- J C + K A Piper (Building Contractors) Limited1993
- JCM Construction Limited2007
- Naj Developments Limited2005
- NH Contracting NW Ltd2016
- Rab Renewables Ltd2026
All civil engineering contractors in St Asaph · All trades in St Asaph · Civil engineering across the UK
Frequently asked questions
When are Corefortress Data Ltd.'s accounts due?
Corefortress Data Ltd.'s next accounts are due at Companies House by 8 June 2028 (in 605 days), covering the period to 30 September 2027.
When is Corefortress Data Ltd.'s CT600 due?
The first accounts cover more than 12 months, so there are two Company Tax Returns: one for the 12 months to 7 September 2027, due by 7 September 2028, and one for the period to 30 September 2027, due by 30 September 2028. Corporation tax is payable 9 months and 1 day after the end of each.
Is Corefortress Data Ltd. still trading?
Corefortress Data 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 Corefortress Data Ltd. do?
Corefortress Data Ltd. is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Corefortress Data Ltd.?
Corefortress Data Ltd. was incorporated on 8 September 2026, less than a year ago.
What is the penalty if Corefortress Data 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 Corefortress Data 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.