- Companies
- Civil engineering
- Magherafelt
- Sperrin Network Services Limited
Sperrin Network Services Limited
- Company number
- NI687433
- Incorporated
- 13 Apr 20224 years trading
- Registered office
- 6B Main Street, Castledawson, Magherafelt, Derry, BT45 8AB
- Nature of business
- Construction of utility projects for electricity and telecommunications
Sperrin Network Services Limited is a 4-year-old private limited company registered in Magherafelt, company number NI687433, one of 13 civil engineering contractors in Magherafelt. 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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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets down £6,196 (-10.4%) on the year before, to £54K.
- Current assets of £66K against £33K owed within a year: 2.0 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £54K | £66K | £33K | 1 | |
| 31 Mar 2024 | £60K | £65K | £19K | 1 | |
| 31 Mar 2023 | £14K | £28K | £30K | 1 |
Where Sperrin Network Services Limited is registered
The registered office is in Magherafelt (BT45), in the Mid Ulster local authority area, Northern Ireland. Show BT45 8AB on a map.
Other trade companies in BT45
- Oakleaf Modular Solutions LimitedSpecialist contractors
- Decorfinishni LtdPainters and decorators
- Tonagh Construction Services LtdSpecialist contractors
- Es Brickwork LtdSpecialist contractors
- CSS Ireland LtdSpecialist contractors
- 825 Contracts LtdBuilders
- Vind Services LtdMachinery repair and installation
- Braidwater (Strategic Land) LimitedProperty developers
Also registered at this address
2 other companies use the same registered office as Sperrin Network Services Limited.
- Commercial Executive Cleaning LimitedCleaning companies
- NL Contract Services LimitedCivil engineering
What happens if Sperrin Network Services Limited 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
- NI687433
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 April 2022 (4 years ago)
- Registered office
- 6B Main Street, Castledawson, Magherafelt, Derry, BT45 8AB
- Nature of business
- Construction of utility projects for electricity and telecommunications (SIC 42220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 12 April 2026
- Previous names
- Dominic O'Loughlin Limited (until 26 Apr 2022)
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 Magherafelt
Other active civil engineering contractors registered in Magherafelt.
- Sperrin Utilities Ltd2022
- Ward Piling Limited2004
- Apex NRG Ltd2020
- BMC Engineering Solutions (NI) Limited2016
- Curragh Utility Services Ltd2026
- Hillhead Plant & Haulage Ltd2017
- NL Contract Services Limited2022
- PB Paving Contracts Limited2017
All civil engineering contractors in Magherafelt · All trades in Magherafelt · Civil engineering across the UK
Frequently asked questions
When are Sperrin Network Services Limited's accounts due?
Sperrin Network Services Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Sperrin Network Services Limited'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 Sperrin Network Services Limited still trading?
Sperrin Network Services Limited 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 Sperrin Network Services Limited do?
Sperrin Network Services Limited is registered under Construction of utility projects for electricity and telecommunications (SIC 42220).
How old is Sperrin Network Services Limited?
Sperrin Network Services Limited was incorporated on 13 April 2022, 4 years ago.
What is the penalty if Sperrin Network Services Limited 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 Sperrin Network Services Limited 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.