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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers who have significant controls over the individuals in focus are always inapplicable. The offspring entities and appointments are those entities that the individuals in focus can influence on.

Clicking the links on parent entities or officers, and offspring entities or managed companies will put them in focus and show upstream or downstream connections. In general, ascendant entities can be found by moving toward upstream, and descendant entities are by toward downstream. In this way, progenitor entities such as grandparent companies (parents of parent), sibling companies (children of parent), partner companies (parents of child), and progeny entities such as grandchild companies (children of child) can be found easily.

Jump to: Offsprings
Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Teyssen, Johannes, Dr

    Related profiles found in government register
  • Teyssen, Johannes, Dr
    German ceo eon born in October 1959

    Resident in Germany

    Registered addresses and corresponding companies
    • Hanptstrasse 29, Oberding, 85445, Germany

      IIF 1
  • Teyssen, Johannes, Dr
    German coo eon born in October 1959

    Resident in Germany

    Registered addresses and corresponding companies
    • Hanptstrasse 29, Oberding, 85445, Germany

      IIF 2
  • Teyssen, Johannes, Dr
    German chief operating officer born in October 1959

    Registered addresses and corresponding companies
    • E.on-platz 1, Dusseldorf, 40479, FOREIGN, Germany

      IIF 3
child relation
Offspring entities and appointments 3
  • 1
    E.ON UK PLC
    - now 02366970 01313782
    POWERGEN UK PLC - 2004-07-05
    POWERGEN PLC - 1998-12-09
    THE POWER GENERATION COMPANY PLC - 1990-01-18
    Westwood Way, Westwood Business Park, Coventry
    Active Corporate (51 parents, 47 offsprings)
    Officer
    2007-05-01 ~ 2007-12-01
    IIF 3 - Director → ME
  • 2
    WEC SERVICES LIMITED
    04236035
    Suite 101-102, Hamilton House 1 Temple Avenue, London, United Kingdom
    Active Corporate (86 parents)
    Officer
    2006-11-01 ~ 2012-11-09
    IIF 2 - Director → ME
  • 3
    WORLD ENERGY COUNCIL
    04184478
    Suite 101-102, Hamilton House 1 Temple Avenue, London, England
    Active Corporate (86 parents)
    Officer
    2006-11-01 ~ 2012-11-08
    IIF 1 - Director → ME

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.