- Companies
- Civil engineering
- Birmingham
- Sona Tech Infrastructure Limited
Sona Tech Infrastructure Limited
- Company number
- 10858502
- Incorporated
- 10 Jul 20179 years trading
- Registered office
- 41 Bellevue Road, Bellevue Road, Birmingham, B26 2QA
- Nature of business
- Construction of water projects; Construction of other civil engineering projects n.e.c.
Sona Tech Infrastructure Limited is a 9-year-old private limited company registered in Birmingham, company number 10858502, one of 278 civil engineering contractors in Birmingham. Companies House shows its accounts as overdue: they were due on 30 April 2026.
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 £13K (-216.1%) on the year before, to -£7,081.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £10K against £8,470 owed within a year: 1.2 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2018 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2024 | -£7,081 | £4,609 | £10K | £8,470 | 1 |
| 31 Jul 2023 | £6,098 | £21K | £27K | £8,636 | 1 |
| 31 Jul 2022 | £10K | £12K | £8,410 | 2 | |
| 31 Jul 2021 | £21K | £60K | £20K | 2 | |
| 31 Jul 2020 | £753 | £30K | £42K | 2 | |
| 31 Jul 2019 | £11K | £12K | £22K | ||
| 31 Jul 2018 | £333 | £18K | £18K |
Who runs and owns Sona Tech Infrastructure Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| S*** S*** | Director | Jul 2017 |
Person with significant control
Where Sona Tech Infrastructure Limited is registered
The registered office is in Birmingham (B26), in the Birmingham local authority area, West Midlands. Show B26 2QA on a map.
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What happens if Sona Tech Infrastructure Limited files late
If the accounts reach Companies House today, the late filing penalty is £750 (£1,500 if last year's accounts were also late). It rises at each step below.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2026 to 31 May 2026 | £150 |
| 1 to 3 months late | 1 Jun 2026 to 31 Jul 2026 | £375 |
| 3 to 6 months late | 1 Aug 2026 to 31 Oct 2026 | £750 |
| More than 6 months late | From 1 Nov 2026 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2026 | £200 |
| 3 months late | 31 Oct 2026 | another £200 |
| 6 months late | 31 Jan 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 2027 | 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
- 10858502
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 10 July 2017 (9 years ago)
- Registered office
- 41 Bellevue Road, Bellevue Road, Birmingham, B26 2QA
- Nature of business
- Construction of water projects (SIC 42910)
Construction of other civil engineering projects n.e.c. (SIC 42990) - Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2024
- Last confirmation statement
- 31 August 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 Birmingham
Other active civil engineering contractors registered in Birmingham.
- Southern Contractors Ltd2017
- Spat TM Ltd2025
- Spencelogistics Ltd2024
- Spsltd Plymouth Ltd2017
- SS Construction Services Ltd2015
- Sterling Traffic Management Ltd2024
- Stuarts Framework Construction Limited2015
- T - Mag Rail Ltd2014
All civil engineering contractors in Birmingham · All trades in Birmingham · Civil engineering across the UK
Frequently asked questions
When are Sona Tech Infrastructure Limited's accounts due?
Sona Tech Infrastructure Limited's accounts were due at Companies House on 30 April 2026 and the register shows them as overdue.
When is Sona Tech Infrastructure Limited's CT600 due?
The CT600 for the period to 31 July 2025 is due at HMRC by 31 July 2026, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2026.
Is Sona Tech Infrastructure Limited still trading?
Sona Tech Infrastructure Limited is listed as active on the Companies House register (checked 12 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 Sona Tech Infrastructure Limited do?
Sona Tech Infrastructure Limited is registered under Construction of water projects (SIC 42910); Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is Sona Tech Infrastructure Limited?
Sona Tech Infrastructure Limited was incorporated on 10 July 2017, 9 years ago.
Who runs Sona Tech Infrastructure Limited?
Sona Tech Infrastructure Limited has 1 active director, the longest-serving appointed in Jul 2017. Their names and service addresses are on the Companies House register.
Who owns Sona Tech Infrastructure Limited?
One person or company has significant control of Sona Tech Infrastructure Limited: an individual (has significant influence or control).
What is the penalty if Sona Tech Infrastructure 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 Sona Tech Infrastructure Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 12 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.