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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company 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
Active 4
  • 1
    Ryan, Christina Bridget
    Company Secretary born in December 1960
    Individual (72 offsprings)
    Officer
    icon of calendar 2006-06-12 ~ dissolved
    OF - Director → CIF 0
  • 2
    Mohun, Michael Joseph
    Company Secretary Manager born in November 1990
    Individual (8 offsprings)
    Officer
    icon of calendar 2017-06-01 ~ dissolved
    OF - Director → CIF 0
  • 3
    BT FORTY-TWO LIMITED - 1995-12-06
    icon of address81 Newgate Street, London
    Active Corporate (5 parents, 168 offsprings)
    Officer
    icon of calendar 1996-03-31 ~ dissolved
    OF - Secretary → CIF 0
  • 4
    icon of address81, Newgate Street, London, United Kingdom
    Active Corporate (5 parents, 4 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
Ceased 24
  • 1
    Ryan, Christina Bridget
    Commercial Officer born in December 1960
    Individual (72 offsprings)
    Officer
    icon of calendar 1997-03-03 ~ 1999-05-06
    OF - Director → CIF 0
    Ryan, Christina Bridget
    Individual (72 offsprings)
    Officer
    icon of calendar 1993-07-12 ~ 1996-03-31
    OF - Secretary → CIF 0
  • 2
    Brierley, Heather Gwendolyn
    Company Secretarial Services M born in February 1971
    Individual
    Officer
    icon of calendar 2002-02-07 ~ 2002-04-01
    OF - Director → CIF 0
  • 3
    Prior, Stephen John
    Chartered Secretary born in March 1953
    Individual (1 offspring)
    Officer
    icon of calendar 1999-05-06 ~ 2000-01-05
    OF - Director → CIF 0
  • 4
    Vaughan, Pamela
    Company Director born in April 1971
    Individual
    Officer
    icon of calendar 2000-01-05 ~ 2002-02-19
    OF - Director → CIF 0
  • 5
    Corkerry, Mike
    Director Of Government Affairs born in May 1957
    Individual
    Officer
    icon of calendar 2001-10-22 ~ 2001-12-07
    OF - Director → CIF 0
    icon of calendar 2002-03-01 ~ 2002-04-01
    OF - Director → CIF 0
  • 6
    Ashton, Helen Louise
    Chartered Secretary born in June 1962
    Individual (86 offsprings)
    Officer
    icon of calendar 2002-02-28 ~ 2002-04-01
    OF - Director → CIF 0
    icon of calendar 2002-09-09 ~ 2010-03-03
    OF - Director → CIF 0
  • 7
    Topal, Osman
    Contracts Manager born in January 1968
    Individual
    Officer
    icon of calendar 2001-12-19 ~ 2002-09-09
    OF - Director → CIF 0
  • 8
    Harwood, Robert John
    Chartered Secretary born in March 1960
    Individual (13 offsprings)
    Officer
    icon of calendar 1999-05-06 ~ 2000-01-05
    OF - Director → CIF 0
  • 9
    Sanger, David Hywel
    Chartered Secretary born in February 1958
    Individual (1 offspring)
    Officer
    icon of calendar ~ 1999-05-06
    OF - Director → CIF 0
  • 10
    Duffy, Katherine Mary
    Chartered Secretary born in July 1945
    Individual
    Officer
    icon of calendar 1995-02-22 ~ 1995-09-25
    OF - Director → CIF 0
  • 11
    Walker, Katherine Ann
    Chartered Secretary born in September 1951
    Individual
    Officer
    icon of calendar 1999-05-06 ~ 2000-01-05
    OF - Director → CIF 0
  • 12
    Cole, Michael John
    Governance Manager born in October 1970
    Individual (3 offsprings)
    Officer
    icon of calendar 2013-10-15 ~ 2014-02-28
    OF - Director → CIF 0
  • 13
    Hirst, Richard Dodsworth
    Barrister born in April 1956
    Individual
    Officer
    icon of calendar 2000-01-05 ~ 2002-04-01
    OF - Director → CIF 0
  • 14
    Challis, John Christopher
    Chartered Secretary born in January 1953
    Individual (20 offsprings)
    Officer
    icon of calendar 2010-07-19 ~ 2010-07-23
    OF - Director → CIF 0
  • 15
    Walsh, Paula Annette
    Company Secretary
    Individual
    Officer
    icon of calendar 1994-05-24 ~ 1996-03-31
    OF - Secretary → CIF 0
  • 16
    Blackwell, Louise Alison Clare
    Company Secretarial Manager born in January 1982
    Individual (31 offsprings)
    Officer
    icon of calendar 2010-03-03 ~ 2013-10-14
    OF - Director → CIF 0
    icon of calendar 2016-05-16 ~ 2018-01-18
    OF - Director → CIF 0
  • 17
    Lee, Paul Richard
    Director born in June 1961
    Individual (1 offspring)
    Officer
    icon of calendar 2001-05-11 ~ 2002-04-01
    OF - Director → CIF 0
  • 18
    Price, Richard David
    Individual
    Officer
    icon of calendar ~ 1993-06-18
    OF - Secretary → CIF 0
  • 19
    Buffa, Alberto
    Company Secretary born in August 1985
    Individual (10 offsprings)
    Officer
    icon of calendar 2015-05-18 ~ 2016-12-09
    OF - Director → CIF 0
  • 20
    Allenby, Philip Norman
    Solicitor born in September 1960
    Individual (9 offsprings)
    Officer
    icon of calendar 2014-02-24 ~ 2015-05-18
    OF - Director → CIF 0
  • 21
    Gear, Carol
    Chartered Secretary born in July 1958
    Individual
    Officer
    icon of calendar ~ 1995-02-17
    OF - Director → CIF 0
  • 22
    Beedham, Geoffrey
    Company Director born in January 1953
    Individual (2 offsprings)
    Officer
    icon of calendar 2000-01-05 ~ 2001-05-11
    OF - Director → CIF 0
  • 23
    Cahalane, Tomas Gerard
    Chartered Secretary born in June 1965
    Individual
    Officer
    icon of calendar 1995-09-25 ~ 1997-03-03
    OF - Director → CIF 0
  • 24
    Jones, Morris David
    Company Director born in August 1959
    Individual (4 offsprings)
    Officer
    icon of calendar 2002-04-01 ~ 2006-06-12
    OF - Director → CIF 0
parent relation
Company in focus

BT FIFTY

Previous names
BT FORTY-THREE LIMITED - 1996-11-04
BT FIFTY LIMITED - 1999-12-21
CONCERT LIMITED - 1998-03-13
Standard Industrial Classification
64209 - Activities Of Other Holding Companies N.e.c.

  • BT FIFTY
    Info
    BT FORTY-THREE LIMITED - 1996-11-04
    BT FIFTY LIMITED - 1996-11-04
    CONCERT LIMITED - 1996-11-04
    Registered number 02604361
    icon of address55 Baker Street, London W1U 7EU
    PRIVATE UNLIMITED COMPANY incorporated on 1991-04-23 and dissolved on 2020-04-10 (28 years 11 months). The company status is Dissolved.
    CIF 0
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.