Filing status
- Accounts due
- 30 June 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 9 July 2027
- Last conf. stmt
- 25 June 2026
Quantum Data Energy PLC
- Incorporated
- 17 September 2020 (6 years)
- Previously known as
- Mast Energy Developments PLC (until 3 November 2025)This list may be incomplete. See all names on Companies House
- Industry
- Production of electricity (35110)
- Accounts type
- Group
- Region
- Greater London
- Address
- 6th Floor99 Gresham StreetLondonEC2V 7NG
Officers 4 active
Officer details are public data from the Companies House register.
British
Born September 1976 (50)
Director · Appointed 13 July 2022
South African
Born May 1985 (41)
O'Keeffe, Noel
Secretary · Appointed 14 April 2021
Director · Appointed 25 March 2021
British
Born December 1952 (73)
Officer history (5 former)
14 July 2025
21 November 2024
21 November 2024
13 July 2022
30 September 2021
30 September 2021
14 April 2021
Resigned Traynor, Dominic as Secretary
14 April 2021
Appointed O'Keeffe, Noel as Secretary
14 April 2021
25 March 2021
25 March 2021
18 November 2020
Appointed Traynor, Dominic as Secretary
17 September 2020
17 September 2020
Ownership 0 active
People and entities with significant control, from the Companies House PSC register
Former controllers (1)
24 May 2024
Ceased Kibo Mining Cyprus Ltd — Owns 50–75% of shares
Group structure 7 companies
Ownership group derived from the Companies House PSC register
Quantum Data Energy PLC This company
Sloane Developments Limited Owns 75–100% of shares
Arl 018 Limited Owns 75–100% of shares
Bordersley Power Ltd Owns 25–50% of shares
Mountfield Power Ltd Owns 75–100% of shares
Pyebridge Power Ltd Owns 75–100% of shares
Sloane Energy Limited Owns 75–100% of shares
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 18 August 2026 | Group of companies' accounts | 31 December 2025 |
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