Horizon Nuclear Power Limited

Active06660388 Private limited company
Incorporated
30 July 2008 (18 years)
Previously known as
Bow Bidco Limited (until 11 November 2009)
Intercede 2298 Limited (until 8 January 2009)
This list may be incomplete. See all names on Companies House
Industry
Production of electricity (35110)
Construction of utility projects for electricity and telecommunications (42220)
Directors
Takashi Tonooka
Owned by
Hitachi, Ltd.
Accounts type
Group
Region
South East
Address
Ditton Park
Riding Court Road
Datchet
Slough
SL3 9LL

Filing status

Accounts due
31 December 2027
Last accounts
31 March 2026
Conf. stmt due
27 July 2027
Last conf. stmt
13 July 2026

Officers 5 active

Officer details are public data from the Companies House register.

Tonooka, Takashi
Director · Appointed 1 July 2023
Japanese
Born October 1972 (54)
Director · Appointed 1 April 2023
Also at Horizon Nuclear Power Wylfa Holdings Limited, Horizon Nuclear Power Wylfa Limited, Horizon Nuclear Power Oldbury Limited · more companies
Japanese
Born September 1966 (60)
Newton, Carl William
Secretary · Appointed 1 April 2021
Director · Appointed 1 April 2021
Also at Horizon Nuclear Power Wylfa Holdings Limited, Horizon Nuclear Power Wylfa Limited, Horizon Nuclear Power Oldbury Limited · more companies
British
Born September 1962 (64)
Masui, Takashi
Director · Appointed 1 April 2019
Japanese
Born August 1962 (64)
Officer history (47 former)
31 March 2024
Resigned Pierce, Stephen Keith as Director
1 July 2023
Appointed Tonooka, Takashi as Director
30 June 2023
Resigned Satake, Tomohiro as Director
1 April 2023
Appointed Inada, Yasunori as Director
31 March 2023
Resigned Kume, Tadashi as Director
1 April 2021
Appointed Newton, Carl William as Secretary
1 April 2021
Appointed Newton, Carl William as Director
1 April 2021
Appointed Pierce, Stephen Keith as Director
31 March 2021
Resigned Stone, Timothy John, Dr as Director
31 March 2021
Resigned Cornelius, Jonathan Miles as Secretary
31 March 2021
Resigned Hawthorne, Duncan as Director
31 March 2021
Resigned Nakane, Masahiko as Director
1 April 2020
Appointed Kume, Tadashi as Director
31 March 2020
Resigned Takehara, Hidetoshi as Director
31 March 2020
Resigned Tanigaki, Masahide as Director
31 March 2020
Resigned Gomersall, Stephen John, Sir as Director
31 March 2020
Resigned Murase, Yoshiteru as Director
1 April 2019
Appointed Nakane, Masahiko as Director
1 April 2019
Appointed Masui, Takashi as Director
1 April 2019
Appointed Satake, Tomohiro as Director
1 April 2019
Appointed Cornelius, Jonathan Miles as Secretary
31 March 2019
Resigned Lee, Sang Hoon David as Director
31 March 2019
Resigned Jones, James William as Secretary
31 March 2019
Resigned Nagasawa, Katsumi as Director
27 September 2018
Resigned Nakane, Masahiko as Director
20 September 2018
Appointed Takehara, Hidetoshi as Director
1 February 2017
Resigned Cornelius, Jonathan Miles as Secretary
1 February 2017
Appointed Jones, James William as Secretary
22 July 2016
Appointed Murase, Yoshiteru as Director
22 July 2016
Appointed Nakane, Masahiko as Director
30 June 2016
Resigned Ishizuka, Tatsuro as Director
7 June 2016
Appointed Cornelius, Jonathan Miles as Secretary
19 April 2016
Resigned Rippon, Alexander William as Secretary
7 April 2015
Appointed Ishizuka, Tatsuro as Director
7 April 2015
Resigned Hanyu, Masaharu as Director
6 October 2014
Appointed Tanigaki, Masahide as Director
1 October 2014
Appointed Stone, Timothy John, Dr as Director
15 July 2014
Appointed Nagasawa, Katsumi as Director
14 July 2014
Resigned Ishizuka, Tatsuro as Director
13 May 2013
Appointed Hawthorne, Duncan as Director
13 May 2013
Appointed Lee, Sang Hoon David as Director
23 November 2012
Resigned Koenig, Ruediger Wilhelm as Director
23 November 2012
Resigned Parkin, Derek as Director
23 November 2012
Resigned Weigand, Frank Thomas, Dr as Director
23 November 2012
Resigned Vaughan, Sara Lyn as Director
23 November 2012
Resigned Guldner, Ralf, Dr as Director
23 November 2012
Resigned Stark, Fiona Scott as Director
23 November 2012
Appointed Hanyu, Masaharu as Director
23 November 2012
Resigned Cowling, Paul Leslie as Director
23 November 2012
Resigned Mccullough, Kevin as Director
23 November 2012
23 November 2012
Appointed Ishizuka, Tatsuro as Director
23 November 2012
Resigned Mantz, Jorn-Erik as Director
23 November 2012
Resigned Clark, Jason Lee as Director
23 November 2012
Appointed Gomersall, Stephen John, Sir as Director
2 December 2011
Appointed Vaughan, Sara Lyn as Director
1 October 2011
Resigned Scoins, Colin Roger as Director
30 July 2010
Resigned Cowling, Paul Leslie as Director
19 April 2010
Appointed Cowling, Paul Leslie as Director
19 April 2010
Appointed Cowling, Paul Leslie as Director
19 April 2010
Resigned Calver, Timothy as Director
1 April 2010
Resigned Steinheider, Dirk as Director
1 April 2010
Appointed Mantz, Jorn-Erik as Director
1 April 2010
1 April 2010
Resigned Pamme, Hartmut, Dr as Director
1 April 2010
Resigned Micklinghoff, Michael, Dr as Director
20 January 2010
Appointed Rippon, Alexander William as Secretary
20 January 2010
Resigned Hammer, Klaus Georg as Director
20 January 2010
Appointed Stark, Fiona Scott as Director
20 January 2010
Appointed Parkin, Derek as Director
20 January 2010
Resigned Beckers, Volker Bernd as Director
20 January 2010
Appointed Weigand, Frank Thomas, Dr as Director
30 September 2009
Resigned Coffey, Paul as Director
30 September 2009
Appointed Calver, Timothy as Director
15 September 2009
Appointed Mccullough, Kevin as Director
15 September 2009
Resigned Akhurst, Kevin Neal, Dr as Director
29 May 2009
Resigned Lightfoot, James Timothy as Director
29 May 2009
Appointed Hammer, Klaus Georg as Director
22 April 2009
Appointed Koenig, Ruediger Wilhelm as Director
22 April 2009
Appointed Clark, Jason Lee as Director
22 April 2009
Appointed Coffey, Paul as Director
20 April 2009
Appointed Steinheider, Dirk as Director
20 April 2009
Appointed Micklinghoff, Michael, Dr as Director
19 February 2009
Appointed Scoins, Colin Roger as Director
19 February 2009
Resigned Steinheider, Dirk as Director
14 January 2009
Appointed Steinheider, Dirk as Director
14 January 2009
Resigned Yuill, William George Henry as Director
14 January 2009
Appointed Pamme, Hartmut, Dr as Director
14 January 2009
Appointed Akhurst, Kevin Neal, Dr as Director
14 January 2009
Appointed Guldner, Ralf, Dr as Director
14 January 2009
Appointed Lightfoot, James Timothy as Director
14 January 2009
Resigned Mitre Secretaries Limited as Corporate Director
14 January 2009
Appointed Beckers, Volker Bernd as Director
14 January 2009
Resigned Mitre Directors Limited as Corporate Director
14 January 2009
Resigned Mitre Secretaries Limited as Corporate Secretary
1 October 2008
Appointed Yuill, William George Henry as Director
30 July 2008
Appointed Mitre Directors Limited as Corporate Director
30 July 2008
Appointed Mitre Secretaries Limited as Corporate Secretary
30 July 2008
Appointed Mitre Secretaries Limited as Corporate Director

Ownership 1 active

People and entities with significant control, from the Companies House PSC register

Hitachi, Ltd.
Corporate entity · Notified 19 August 2021
Owns 75–100% of shares
Holds 75–100% of voting rights
Right to appoint and remove directors
Public Limited Company
Reg. no. 0100-01-008844

Holdings 1

Companies where Horizon Nuclear Power Limited is registered as a person with significant control

Active
Former controllers (1)
19 August 2021
Ceased Hitachi Nuclear Projects Development Europe Limited — Owns 75–100% of shares

Filings

Recent filings only. See the full history on Companies House

DateDescriptionMade Up ToPagesPDF
15 July 2026Confirmation statement with no updates13 July 2026
7 July 2026Group of companies' accounts31 March 2026
14 July 2025Confirmation statement with no updates13 July 2025
24 June 2025Group of companies' accounts31 March 2025
1 October 2024Registered office address changed
Show all recent filings

Some other companies at this address

Horizon Nuclear Power Oldbury Limited
Horizon Nuclear Power Services Limited
Horizon Nuclear Power Wylfa Holdings Limited
Horizon Nuclear Power Wylfa Limited

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