Skip to content
Governance Register
Sign inFind yourself
Find yourselfSign in
Search How it works For organisations For professionals

Edition

United Kingdom (current)IrelandUnited StatesNew ZealandCanadaAustraliaScotlandNorthern Ireland

Company

Horizon Nuclear Power Limited

Horizon Nuclear Power Limited is an active UK company (number 06660388), incorporated 2008, with 3 current directors including Takashi Tonooka and Yasunori Inada. Source: Companies House, updated 4th October 2026.

How am I connected?
More
View network map Report an issue

Official record Companies House · updated 4th October 2026 · Sources

Network

The large node is Horizon Nuclear Power Limited. Red nodes are organisations, white nodes are people. Sign in free to explore further.

Who leads it

Previous officers 42

  1. Stephen Keith Pierce 2021-2024 Director View profile
  2. Tadashi Kume 2020-2023 Director View profile
  3. Tomohiro Satake 2019-2023 Director View profile
  4. Masahiko Nakane 2019-2021 Director View profile
  5. Hidetoshi Takehara 2018-2020 Director View profile
  6. Yoshiteru Murase 2016-2020 Director View profile
  7. Masahide Tanigaki 2014-2020 Director View profile
  8. Dr Timothy John Stone 2014-2021 Director View profile
  9. Katsumi Nagasawa 2014-2019 Director View profile
  10. Duncan Hawthorne 2013-2021 Director View profile
  11. Sang Hoon David Lee 2013-2019 Director View profile
  12. Masaharu Hanyu 2012-2015 Director View profile
  13. Tatsuro Ishizuka 2012-2016 Director View profile
  14. Sir Stephen John Gomersall 2012-2020 Director View profile
  15. Sara Lyn Vaughan 2011-2012 Director View profile
  16. Paul Leslie Cowling 2010-2012 Director View profile
  17. Dr Willibald Robert Kohlpaintner 2010-2012 Director View profile
  18. Jorn-Erik Mantz 2010-2012 Director View profile
  19. Fiona Scott Stark 2010-2012 Director View profile
  20. Derek Parkin 2010-2012 Director View profile
  21. Dr Frank Thomas Weigand 2010-2012 Director View profile
  22. Timothy Calver 2009-2010 Director View profile
  23. Kevin Mccullough 2009-2012 Director View profile
  24. Klaus Georg Hammer 2009-2010 Director View profile
  25. Ruediger Wilhelm Koenig 2009-2012 Director View profile
  26. Paul Coffey 2009-2009 Director View profile
  27. Jason Lee Clark 2009-2012 Director View profile
  28. Dirk Steinheider 2009-2010 Director View profile
  29. Dr Michael Micklinghoff 2009-2010 Director View profile
  30. Colin Roger Scoins 2009-2011 Director View profile
  31. Volker Bernd Beckers CBE 2009-2010 Director View profile
  32. Dr Ralf Guldner 2009-2012 Director View profile
  33. James Timothy Lightfoot 2009-2009 Director View profile
  34. Dr Kevin Neal Akhurst 2009-2009 Director View profile
  35. Dr Hartmut Pamme 2009-2010 Director View profile
  36. Mitre Directors Limited 2008-2009 Corporate-director View profile
  37. Mitre Secretaries Limited 2008-2009 Corporate-director View profile
  38. Jonathan Miles Cornelius 2019-2021 Secretary View profile
  39. James William Jones 2017-2019 Secretary View profile
  40. Jonathan Miles Cornelius 2016-2017 Secretary View profile
  41. Alexander William Rippon 2010-2016 Secretary View profile
  42. Mitre Secretaries Limited 2008-2009 Corporate-secretary View profile

Directors and secretaries as filed at Companies House.

Do you help lead this organisation? Set up its network · How it works

About

Incorporated
30/07/2008

Group

No further corporate or individual controller is recorded above Horizon Nuclear Power Limited on the PSC register - it appears to be the top of its group.

4 other companies in this group

Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.

Board analysis

Board DNA

How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.

3 directors on the board

4.5y median 3.3y
average tenure
7.3y
longest tenure

Directors past 6 years

First-time vs portfolio directors

Portfolio (3)

0
also govern a charity
0
left in the last 12 months

Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.

Utilities 12

The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.

Sources

Official record from Companies House. Governance Register calculates the connections.

Record details
Company number
06660388
Status
Active
Type
Private Limited Company
Edition
Register edition compiled 4th October 2026
Labels
Official record from Companies House · Calculated derived by Governance Register.

Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data