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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.

Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Walker, Katherine Ann

child relation
Offspring entities and appointments
Active 0
  • Not found in our database.
Ceased 21
  • 1
    BT THIRTY-SIX LIMITED - 1996-05-02
    icon of address 55 Baker Street, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 1998-01-12 ~ 1998-01-13
    IIF 6 - Director → ME
    icon of calendar 1996-05-30 ~ 1996-06-03
    IIF 1 - Director → ME
    icon of calendar 1996-05-22 ~ 2001-02-13
    IIF 23 - Secretary → ME
  • 2
    BRITISH TELECOM (CBP) LIMITED - 1993-02-15
    CITY BUSINESS PRODUCTS LIMITED - 1987-05-20
    icon of address 1 More London Place, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar ~ 1993-07-28
    IIF 24 - Secretary → ME
  • 3
    BT TEN LIMITED - 1988-06-24
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (4 parents, 5 offsprings)
    Officer
    icon of calendar 1998-08-17 ~ 1998-08-31
    IIF 12 - Director → ME
  • 4
    icon of address 55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 1995-12-15 ~ 2002-07-12
    IIF 16 - Director → ME
  • 5
    icon of address 55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 1995-12-15 ~ 2002-07-12
    IIF 8 - Director → ME
  • 6
    BT FIFTY
    - now
    BT FIFTY LIMITED - 1999-12-21
    CONCERT LIMITED - 1998-03-13
    BT FORTY-THREE LIMITED - 1996-11-04
    icon of address 55 Baker Street, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 1999-05-06 ~ 2000-01-05
    IIF 9 - Director → ME
  • 7
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (5 parents, 2 offsprings)
    Officer
    icon of calendar 1998-08-20 ~ 1999-01-20
    IIF 3 - Director → ME
  • 8
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    icon of calendar 1998-08-20 ~ 2002-07-12
    IIF 19 - Director → ME
  • 9
    icon of address 55 Baker Street, London
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 1998-07-09 ~ 2002-07-12
    IIF 17 - Director → ME
  • 10
    BT (FOURTH) NOMINEES LIMITED - 2001-11-05
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 1997-10-17 ~ 2001-11-05
    IIF 7 - Director → ME
  • 11
    BT ELEVEN LIMITED - 1988-05-13
    BT (WORLDWIDE) LIMITED - 2003-04-15
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (3 parents)
    Officer
    icon of calendar 1998-08-17 ~ 1998-08-31
    IIF 10 - Director → ME
    icon of calendar 1996-07-08 ~ 1996-07-12
    IIF 22 - Director → ME
    icon of calendar ~ 2002-07-15
    IIF 25 - Secretary → ME
  • 12
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 1995-12-01 ~ 2002-07-12
    IIF 2 - Director → ME
  • 13
    BT IGNITE NORDICS LIMITED - 2003-04-09
    BT SIXTY-FIVE LIMITED - 2001-07-16
    VENATION LIMITED - 2001-02-16
    icon of address 81 Newgate Street, London
    Converted / Closed Corporate (3 parents)
    Officer
    icon of calendar 2000-04-25 ~ 2002-07-15
    IIF 21 - Director → ME
  • 14
    BT HAWTHORN INVESTMENTS LIMITED - 2001-08-13
    icon of address 55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2000-03-01 ~ 2002-07-12
    IIF 15 - Director → ME
  • 15
    ITALY MOBILE - 2001-07-17
    icon of address 55 Baker Street, London
    Dissolved Corporate (5 parents)
    Officer
    icon of calendar 1999-06-29 ~ 2002-07-12
    IIF 18 - Director → ME
  • 16
    BT IGNITE LIMITED - 2003-04-09
    icon of address 55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2000-12-18 ~ 2002-07-15
    IIF 4 - Director → ME
  • 17
    VIO WORLDWIDE LIMITED - 2011-08-12
    icon of address Berkshire House 7th Floor, 168 - 173 High Holborn, London, England
    Dissolved Corporate (4 parents, 1 offspring)
    Officer
    icon of calendar 1998-08-25 ~ 1998-09-24
    IIF 13 - Director → ME
  • 18
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 2000-07-19 ~ 2002-07-15
    IIF 14 - Director → ME
  • 19
    BT FORTY-TWO LIMITED - 1995-12-06
    icon of address 1 Braham Street, London, United Kingdom
    Active Corporate (5 parents, 168 offsprings)
    Officer
    icon of calendar 1995-11-21 ~ 2002-07-12
    IIF 5 - Director → ME
  • 20
    GENIE INTERNET LIMITED - 2002-04-19
    CELLSTREAM LIMITED - 1999-03-29
    icon of address 260 Bath Road, Slough, Berkshire
    Dissolved Corporate (4 parents)
    Officer
    icon of calendar 2000-08-17 ~ 2001-11-19
    IIF 20 - Director → ME
  • 21
    TELEFONICA O2 EUROPE LIMITED - 2007-01-02
    TELEFONICA DIGITAL COMMUNICATIONS LIMITED - 2012-08-22
    TELEFONICA DIGITAL LIMITED - 2011-12-16
    O2 BEECH LIMITED - 2011-01-05
    MOBILITYLEADERS LIMITED - 2006-08-18
    TU PRODUCTS LIMITED - 2015-07-21
    TELEFONICA UK COMMUNICATIONS LIMITED - 2011-09-15
    O2 LIMITED - 2008-10-30
    icon of address Highdown House, Yeoman Way, Worthing, West Sussex, United Kingdom
    Active Corporate (4 parents)
    Officer
    icon of calendar 1998-10-02 ~ 2001-11-19
    IIF 11 - Director → ME

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Contains public sector information retrieved at 16 October 2025 and licensed under the Open Government Licence v3.0.