Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 6 October 2027
- Last conf. stmt
- 22 September 2026
Sienna Bidco Limited
- Incorporated
- 27 November 2023 (2 years)
- Industry
- Activities of other holding companies n.e.c. (64209)
- Directors
- Owned by
- Accounts type
- Audit exemption subsidiary
- Region
- Wales
- Address
- Prennau House Copse WalkPontprennauCardiffCF23 8XH
Charges
- Total
- 5
- Outstanding
- 4
- Part satisfied
- 0
- Satisfied
- 1
Officers 3 active
Officer details are public data from the Companies House register.
Director · Appointed 30 June 2026
British
Born September 1975 (51)
Director · Appointed 28 January 2026
British
Born November 1970
Jordan, Neil
Secretary · Appointed 15 January 2026
Officer history (7 former)
30 June 2026
30 June 2026
29 January 2026
28 January 2026
16 January 2026
16 January 2026
15 January 2026
15 January 2026
Appointed Jordan, Neil as Secretary
15 January 2026
15 January 2026
15 January 2026
20 March 2025
17 March 2025
11 March 2025
22 November 2024
27 November 2023
27 November 2023
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 27 November 2023
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Corporate
Reg. no. 15311037
Group structure 9 shown
Ownership group derived from the Companies House PSC register
Cyrus Bidco Limited Owns 75–100% of shares
Salisbury Topco Limited Owns 75–100% of shares
Salisbury Midco Limited Owns 75–100% of shares
Sma Topco Limited Owns 75–100% of shares
Sma Parentco Limited Owns 75–100% of shares
Sienna Midco 3 Limited Owns 75–100% of shares
Sienna Bidco Limited This company Owns 75–100% of shares
Smart Metering Systems Limited Owns 75–100% of shares
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 6 November 2026 | Other filing | — | ||
| 6 November 2026 | Other filing | — | ||
| 6 November 2026 | Accounts filing | — | ||
| 6 November 2026 | Audit exemption subsidiary accounts | 31 December 2025 | — | |
| 19 October 2026 | Other filing |
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