- Companies
- Electricians
- Fareham
- Sisko Group Ltd
Sisko Group Ltd
- Company number
- 12886738
- Incorporated
- 17 Sep 20206 years trading
- Registered office
- Spectrum, First Floor, 1600 Parkway, Spectrum, First Floor, 1600 Parkway, Fareham, PO15 7AH
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation; Other activities of employment placement agencies; Temporary employment agency activities
Sisko Group Ltd is a 6-year-old private limited company registered in Fareham, company number 12886738, one of 111 electrical contractors in Fareham. 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 up £481K (+378.4%) on the year before, to £608K.
- Current assets of £1.1M against £490K owed within a year: 2.2 times cover.
- 81 employees on average, up from 42 the year before.
- Balance sheets on record for 3 years, 2022 to 2024.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2024 | £608K | £621K | £1.1M | £490K | 81 |
| 31 Jan 2023 | £127K | £154K | £249K | £131K | 42 |
| 31 Jan 2022 | £13K | £50K | £61K | £48K | 8 |
Where Sisko Group Ltd is registered
The registered office is in Fareham (PO15), in the Winchester local authority area, South East. Show PO15 7AH on a map.
Other trade companies in PO15
- 3Di Climate LimitedPlumbers and heating engineers
- Epvaleting LtdCleaning companies
- Climatiq LtdPlumbers and heating engineers
- JC Heating LtdPlumbers and heating engineers
- True Harts Construction LtdBuilders
- Ecoairfit LtdPlumbers and heating engineers
- Goodmotorcompany LtdMotor traders
- Mays Environmental Plant Hire LtdCivil engineering
What happens if Sisko Group 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 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
- 12886738
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 September 2020 (6 years ago)
- Registered office
- Spectrum, First Floor, 1600 Parkway, Spectrum, First Floor, 1600 Parkway, Fareham, PO15 7AH
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other activities of employment placement agencies (SIC 78109)
Temporary employment agency activities (SIC 78200) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 10 February 2026
- Charges (mortgages)
- 1 outstanding of 3 registered
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 Fareham
Other active electrical contractors registered in Fareham.
- SJM Electrical Systems Ltd2022
- Smith Electrical Contractors Limited2007
- Solent Solar Ltd2022
- Southampton Electrical Limited2018
- STFW Electrical Ltd2022
- Stubbington Electrical Ltd2015
- Swytch Ltd2021
- Syntirisi Limited2019
All electrical contractors in Fareham · All trades in Fareham · Electricians across the UK
Frequently asked questions
When are Sisko Group Ltd's accounts due?
Sisko Group Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Sisko Group Ltd'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 Sisko Group Ltd still trading?
Sisko Group 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 Sisko Group Ltd do?
Sisko Group Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Other activities of employment placement agencies (SIC 78109); Temporary employment agency activities (SIC 78200).
How old is Sisko Group Ltd?
Sisko Group Ltd was incorporated on 17 September 2020, 6 years ago.
What is the penalty if Sisko Group 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 Sisko Group 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.