- Companies
- Electricians
- Birmingham
- Cis Infrastructure Specialists Ltd
Cis Infrastructure Specialists Ltd
- Company number
- 11348497
- Incorporated
- 8 May 20188 years trading
- Registered office
- 19 Benedon Road, Birmingham, B26 2NL
- Nature of business
- Electrical installation
Cis Infrastructure Specialists Ltd is a 8-year-old private limited company registered in Birmingham, company number 11348497, one of 555 electrical contractors in Birmingham. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £12K (-36.4%) on the year before, to £21K.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £15K against £9,679 owed within a year: 1.6 times cover.
- 2 employees on average, up from 1 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £21K | £15K | £9,679 | 2 | |
| 31 May 2024 | £33K | £20K | £3,120 | 1 | |
| 31 May 2023 | £61K | £58K | £15K | 2 | |
| 31 May 2022 | £48K | £43K | £9,132 | 1 | |
| 31 May 2021 | £59K | £60K | £14K | 1 | |
| 31 May 2020 | £83K | £119K | £40K | 1 | |
| 31 May 2019 | £37K | £48K | £14K | 1 |
Where Cis Infrastructure Specialists Ltd is registered
The registered office is in Birmingham (B26), in the Birmingham local authority area, West Midlands. Show B26 2NL on a map.
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Also registered at this address
1 other company uses the same registered office as Cis Infrastructure Specialists Ltd.
- Green Park Electrical Services LtdElectricians
What happens if Cis Infrastructure Specialists 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11348497
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 8 May 2018 (8 years ago)
- Registered office
- 19 Benedon Road, Birmingham, B26 2NL
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 7 May 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Birmingham
Other active electrical contractors registered in Birmingham.
- City & Countryside Electrical Engineering Services Ltd.2023
- City Tech Electrical Ltd2010
- Cityfire&Electrical Services Ltd2006
- Civil-I Infrastructure Ltd2025
- CJ Fletcher Ltd2024
- Click&Switch Ltd2024
- Clifford Property Services Ltd2017
- Codestay Limited1987
All electrical contractors in Birmingham · All trades in Birmingham · Electricians across the UK
Frequently asked questions
When are Cis Infrastructure Specialists Ltd's accounts due?
Cis Infrastructure Specialists Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Cis Infrastructure Specialists Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Cis Infrastructure Specialists Ltd still trading?
Cis Infrastructure Specialists 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 Cis Infrastructure Specialists Ltd do?
Cis Infrastructure Specialists Ltd is registered under Electrical installation (SIC 43210).
How old is Cis Infrastructure Specialists Ltd?
Cis Infrastructure Specialists Ltd was incorporated on 8 May 2018, 8 years ago.
What is the penalty if Cis Infrastructure Specialists 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 Cis Infrastructure Specialists 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.