Filing status
- Accounts due
- 30 September 2027
- Last accounts
- 31 December 2025
- Conf. stmt due
- 12 November 2026
- Last conf. stmt
- 29 October 2025
Diamond Offshore Enterprises Limited
- Incorporated
- 11 November 2008 (17 years)
- Previously known as
- Whaleco (No.11) Limited (until 12 November 2008)This list may be incomplete. See all names on Companies House
- Industry
- Other business support service activities n.e.c. (82990)
- Directors
- Owned by
- Accounts type
- Audit exemption subsidiary
- Region
- North West
- Address
- 3rd Floor1 Ashley RoadAltrinchamWA14 2DT
Charges
- Total
- 6
- Outstanding
- 2
- Part satisfied
- 0
- Satisfied
- 4
Officers 3 active
Officer details are public data from the Companies House register.
Cosgrove, Carolyn Fiona
Secretary · Appointed 18 December 2024
Director · Appointed 4 September 2024
British
Born November 1971
Director · Appointed 4 September 2024
British
Born April 1974 (52)
Officer history (18 former)
18 December 2024
Appointed Cosgrove, Carolyn Fiona as Secretary
31 October 2024
4 September 2024
4 September 2024
4 September 2024
4 September 2024
25 September 2023
21 April 2022
13 August 2021
13 August 2021
30 June 2021
21 June 2021
28 January 2021
28 January 2021
10 December 2020
10 December 2020
25 May 2020
24 May 2018
24 May 2018
27 October 2017
27 October 2017
15 October 2014
15 October 2014
11 June 2014
11 June 2014
9 July 2012
8 December 2011
6 December 2011
12 November 2008
12 November 2008
12 November 2008
12 November 2008
12 November 2008
12 November 2008
12 November 2008
12 November 2008
11 November 2008
11 November 2008
11 November 2008
Ownership 1 active
People and entities with significant control, from the Companies House PSC register
Corporate entity · Notified 4 September 2024
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Public Limited Company
Reg. no. 12958050
Former controllers (1)
4 September 2024
Ceased Diamond Offshore Drilling Inc. — Owns 75–100% of shares
Group structure 12 shown
Ownership group derived from the Companies House PSC register
Diamond Offshore Enterprises Limited This company Owns 75–100% of shares
Noble Offshore Drilling (UK) Ltd Owns 75–100% of shares
Diamond Offshore Limited Owns 75–100% of shares
Diamond Rig Investments Limited Owns 75–100% of shares
Noble Holdco (UK) Limited Owns 75–100% of shares
Noble Ndus Holdings UK Limited Holds 75–100% of voting rights
Noble Drilling UK Ltd Owns 75–100% of shares
Noble Highlander UK Ltd Owns 75–100% of shares
Noble Nec Holdings Limited Owns 75–100% of shares
Noble Holding Land Support Limited Owns 75–100% of shares
Noble Ndus UK Ltd Owns 75–100% of shares
Filings
Recent filings only. See the full history on Companies House
| Date | Description | Made Up To | Pages | |
|---|---|---|---|---|
| 22 October 2026 | Other filing | |||
| 22 October 2026 | Other filing | |||
| 22 October 2026 | Accounts filing | |||
| 22 October 2026 | Audit exemption subsidiary accounts | 31 December 2025 | ||
| 11 September 2026 | Resolutions |
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