Filing status
- Accounts due
- 31 December 2026
- Last accounts
- 31 December 2024
- Conf. stmt due
- 13 November 2026
- Last conf. stmt
- 30 October 2025
Siel Energy Systems Limited
- Incorporated
- 7 November 1991 (35 years)
- Previously known as
- Siel Ups Systems Limited (until 22 February 2011)Static Technology Ltd (until 2 September 1993)
- Industry
- Manufacture of other electrical equipment (27900)
- Owned by
- Accounts type
- Small
- Address
- Systems House Rotherside RoadEckingtonSheffieldS21 4HL
Officers 4 active
Officer details are public data from the Companies House register.
Director · Appointed 1 April 2026
Turkish
Born April 1974 (52)
Director · Appointed 30 September 2025
British
Born November 1976
Director · Appointed 1 September 2022
French
Born June 1967 (59)
Director · Appointed 1 September 2022
French
Born February 1980 (46)
Officer history (10 former)
1 April 2026
1 April 2026
30 September 2025
30 September 2025
Resigned Nicholson, Thomas Richard as Director
30 September 2025
1 September 2022
1 September 2022
Resigned Mather, Robert as Director
1 September 2022
1 September 2022
6 May 2021
Appointed Mather, Robert as Director
6 May 2021
30 April 2021
Resigned Harris, Susan Joy as Secretary
30 April 2021
Appointed Nicholson, Thomas Richard as Director
30 April 2021
Resigned Hinder, Richard as Director
30 April 2021
Resigned Harris, Wayne Patrick as Director
1 January 2000
Appointed Hinder, Richard as Director
27 July 1999
27 July 1999
27 July 1999
Appointed Harris, Susan Joy as Secretary
20 August 1993
20 August 1993
1 July 1993
7 November 1991
7 November 1991
Appointed Harris, Wayne Patrick as Director
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 30 April 2021
Owns 75–100% of shares
Holds 75–100% of voting rights
Limited Company
Reg. no. 08866152
Former controllers (1)
30 April 2021
Ceased Finsiel — Owns 50–75% of shares
Group structure 14 shown
Ownership group derived from the Companies House PSC register
Legrand Electric Limited Owns 75–100% of shares
18MC Global Limited Owns 75–100% of shares
Usystems Limited Owns 75–100% of shares
Electrak Holdings Limited Owns 75–100% of shares
Electrak International Limited Owns 75–100% of shares
Electrak Limited Owns 75–100% of shares
Jontek Limited Owns 75–100% of shares
PCL Holdings Limited Owns 75–100% of shares
Power Control Ltd Owns 75–100% of shares
Siel Energy Systems Limited This company Owns 75–100% of shares
Raritan Computer U.K. Limited Owns 75–100% of shares
Starline Holdings Technology Limited Owns 75–100% of shares
Tynetec Limited Owns 75–100% of shares
Financials
Figures from 2020 accounts. Newer accounts, made up to 31 December 2024, are filed but not read yet. See them on Companies House
- Net Assets
- £865,229
- up £125,870 (17%)
- Cash
- £1,106,360
- up £264,072 (31%)
- Employees
- 8
- down 2 (20%)
- Debt Ratio
- 41%
- Current Ratio
- 2.4x
Trend
Net Assets
Balance sheet detail
| 2020 | 2019 | |
|---|---|---|
| Fixed Assets | £13,169 | £13,589 |
| Current Assets | £1,447,682 | £1,169,996 |
| Debtors | £332,359 | £316,461 |
| Cash | £1,106,360 | £842,288 |
| Creditors (< 1 year) | £593,179 | £441,770 |
| Net Current Assets | £854,503 | £728,226 |
| Net Assets | £865,229 | £739,359 |
| Shareholder Funds | £865,229 | £739,359 |
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 15 May 2026 | Appointment of a director | |||
| 30 April 2026 | Termination of appointment of a director | |||
| 28 November 2025 | Accounts for a small company | 31 December 2024 | ||
| 30 October 2025 | Confirmation statement with no updates | 30 October 2025 | ||
| 10 October 2025 | Appointment of a director |
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