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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
    ALBACOM HOLDINGS
    - now 02603349
    BT THIRTY-SIX LIMITED - 1996-05-02
    55 Baker Street, London
    Dissolved Corporate (4 parents)
    Officer
    1996-05-30 ~ 1996-06-03
    IIF 1 - Director → ME
    1998-01-12 ~ 1998-01-13
    IIF 6 - Director → ME
    1996-05-22 ~ 2001-02-13
    IIF 23 - Secretary → ME
  • 2
    BT (CBP) LIMITED
    - now 02002853
    BRITISH TELECOM (CBP) LIMITED
    - 1993-02-15 02002853
    CITY BUSINESS PRODUCTS LIMITED
    - 1987-05-20 02002853
    1 More London Place, London
    Dissolved Corporate (3 parents)
    Officer
    ~ 1993-07-28
    IIF 24 - Secretary → ME
  • 3
    BT (INTERNATIONAL) HOLDINGS LIMITED
    - now 02216586
    BT TEN LIMITED - 1988-06-24
    1 Braham Street, London, United Kingdom
    Active Corporate (5 parents, 5 offsprings)
    Officer
    1998-08-17 ~ 1998-08-31
    IIF 12 - Director → ME
  • 4
    BT (SECOND) NOMINEES LIMITED
    02444635
    55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    1995-12-15 ~ 2002-07-12
    IIF 16 - Director → ME
  • 5
    BT (THIRD) NOMINEES LIMITED
    02450492
    55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    1995-12-15 ~ 2002-07-12
    IIF 8 - Director → ME
  • 6
    BT FIFTY
    - now 02604361
    BT FIFTY LIMITED
    - 1999-12-21 02604361
    CONCERT LIMITED - 1998-03-13
    BT FORTY-THREE LIMITED - 1996-11-04
    55 Baker Street, London
    Dissolved Corporate (4 parents)
    Officer
    1999-05-06 ~ 2000-01-05
    IIF 9 - Director → ME
  • 7
    BT FIFTY-ONE
    03621755
    1 Braham Street, London, United Kingdom
    Active Corporate (5 parents, 2 offsprings)
    Officer
    1998-08-20 ~ 1999-01-20
    IIF 3 - Director → ME
  • 8
    BT FIFTY-THREE LIMITED
    03621745
    1 Braham Street, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    1998-08-20 ~ 2002-07-12
    IIF 19 - Director → ME
  • 9
    BT FORTY-NINE
    03598157
    55 Baker Street, London
    Dissolved Corporate (4 parents)
    Officer
    1998-07-09 ~ 2002-07-12
    IIF 17 - Director → ME
  • 10
    BT GROUP NOMINEES LIMITED - now
    BT (FOURTH) NOMINEES LIMITED
    - 2001-11-05 02444638
    1 Braham Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    1997-10-17 ~ 2001-11-05
    IIF 7 - Director → ME
  • 11
    BT LIMITED - now
    BT (WORLDWIDE) LIMITED
    - 2003-04-15 02216369 01976244
    BT ELEVEN LIMITED - 1988-05-13
    1 Braham Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    1998-08-17 ~ 1998-08-31
    IIF 10 - Director → ME
    1996-07-08 ~ 1996-07-12
    IIF 22 - Director → ME
    ~ 2002-07-15
    IIF 25 - Secretary → ME
  • 12
    BT NOMINEES LIMITED
    02057653
    1 Braham Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    1995-12-01 ~ 2002-07-12
    IIF 2 - Director → ME
  • 13
    BT NORDICS LIMITED - now
    BT IGNITE NORDICS LIMITED
    - 2003-04-09 03983000
    BT SIXTY-FIVE LIMITED
    - 2001-07-16 03983000
    VENATION LIMITED
    - 2001-02-16 03983000
    81 Newgate Street, London
    Converted / Closed Corporate (3 parents)
    Officer
    2000-04-25 ~ 2002-07-15
    IIF 21 - Director → ME
  • 14
    BT SEVENTY-FOUR LIMITED
    - now 03940151
    BT HAWTHORN INVESTMENTS LIMITED
    - 2001-08-13 03940151
    55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    2000-03-01 ~ 2002-07-12
    IIF 15 - Director → ME
  • 15
    BT SEVENTY-THREE
    - now 03800241
    ITALY MOBILE
    - 2001-07-17 03800241
    55 Baker Street, London
    Dissolved Corporate (5 parents)
    Officer
    1999-06-29 ~ 2002-07-12
    IIF 18 - Director → ME
  • 16
    BT SWITZERLAND LIMITED - now
    BT IGNITE LIMITED
    - 2003-04-09 04129665
    55 Baker Street, London
    Dissolved Corporate (3 parents)
    Officer
    2000-12-18 ~ 2002-07-15
    IIF 4 - Director → ME
  • 17
    DUBSAT LTD - now
    VIO WORLDWIDE LIMITED
    - 2011-08-12 03623728
    Berkshire House 7th Floor, 168 - 173 High Holborn, London, England
    Dissolved Corporate (4 parents, 1 offspring)
    Officer
    1998-08-25 ~ 1998-09-24
    IIF 13 - Director → ME
  • 18
    ESAT TELECOMMUNICATIONS (UK) LIMITED
    03271439
    1 Braham Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    2000-07-19 ~ 2002-07-15
    IIF 14 - Director → ME
  • 19
    NEWGATE STREET SECRETARIES LIMITED
    - now 02604359
    BT FORTY-TWO LIMITED
    - 1995-12-06 02604359
    1 Braham Street, London, United Kingdom
    Active Corporate (5 parents, 168 offsprings)
    Officer
    1995-11-21 ~ 2002-07-12
    IIF 5 - Director → ME
  • 20
    O2 (ONLINE) LIMITED - now 04330394, 04330394
    GENIE INTERNET LIMITED
    - 2002-04-19 01906156 04330446, 04330394
    CELLSTREAM LIMITED - 1999-03-29
    260 Bath Road, Slough, Berkshire
    Dissolved Corporate (4 parents)
    Officer
    2000-08-17 ~ 2001-11-19
    IIF 20 - Director → ME
  • 21
    O2 OAK LIMITED - now
    TU PRODUCTS LIMITED - 2015-07-21
    TELEFONICA DIGITAL COMMUNICATIONS LIMITED - 2012-08-22 07884976
    TELEFONICA DIGITAL LIMITED - 2011-12-16 07884976
    TELEFONICA UK COMMUNICATIONS LIMITED - 2011-09-15
    O2 BEECH LIMITED - 2011-01-05 04330445
    O2 LIMITED - 2008-10-30 04330445, 05310128, 02604354... (more)
    TELEFONICA O2 EUROPE LIMITED - 2007-01-02 03722259, 05310128, 05310128... (more)
    MOBILITYLEADERS LIMITED
    - 2006-08-18 03646040
    Highdown House, Yeoman Way, Worthing, West Sussex, United Kingdom
    Active Corporate (4 parents)
    Officer
    1998-10-02 ~ 2001-11-19
    IIF 11 - Director → ME

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