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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
    Roy, Paul Ian
    Born in July 1971
    Individual (18 offsprings)
    Officer
    icon of calendar 2025-10-15 ~ now
    OF - Director → CIF 0
  • 2
    Ericson, Simon Anthony
    Born in March 1972
    Individual (2 offsprings)
    Officer
    icon of calendar 2025-10-15 ~ now
    OF - Director → CIF 0
  • 3
    Li, Jeffrey Kang-chieh
    Born in August 1969
    Individual (9 offsprings)
    Officer
    icon of calendar 2025-10-15 ~ now
    OF - Director → CIF 0
    Li, Jeffrey Kang-chieh
    Individual (9 offsprings)
    Officer
    icon of calendar 2025-10-15 ~ now
    OF - Secretary → CIF 0
  • 4
    icon of address1400, Fountain Grove Parkway, Santa Rosa, Ca 95403, United States
    Corporate (4 offsprings)
    Person with significant control
    icon of calendar 2025-10-15 ~ now
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
Ceased 44
  • 1
    Given, Andrew Ferguson
    Company Director born in November 1947
    Individual
    Officer
    icon of calendar 2003-10-09 ~ 2006-12-22
    OF - Director → CIF 0
  • 2
    Ennerfelt, Per Goran
    Business Executive born in March 1940
    Individual
    Officer
    icon of calendar 2000-12-19 ~ 2007-05-24
    OF - Director → CIF 0
  • 3
    Bell, Paula
    Born in January 1967
    Individual (7 offsprings)
    Officer
    icon of calendar 2016-09-05 ~ 2025-10-15
    OF - Director → CIF 0
  • 4
    Walker, Alexander
    Director born in August 1946
    Individual
    Officer
    icon of calendar 2006-12-22 ~ 2017-05-03
    OF - Director → CIF 0
  • 5
    Bourne, Walter
    Director born in April 1935
    Individual
    Officer
    icon of calendar ~ 1995-04-14
    OF - Director → CIF 0
  • 6
    Cheng, Paul Ming Fun
    Director born in October 1936
    Individual
    Officer
    icon of calendar 1996-08-01 ~ 2003-12-31
    OF - Director → CIF 0
  • 7
    Cox, Edward Brian
    Individual
    Officer
    icon of calendar ~ 1992-07-01
    OF - Secretary → CIF 0
  • 8
    Hellstrom, Kurt Roland
    Non Executive Director born in December 1943
    Individual
    Officer
    icon of calendar 2004-12-09 ~ 2006-12-22
    OF - Director → CIF 0
  • 9
    Wyness, James Alexander Davidson
    Director born in August 1937
    Individual
    Officer
    icon of calendar ~ 2006-05-03
    OF - Director → CIF 0
  • 10
    Weston, John Pix
    Engineer born in August 1951
    Individual (4 offsprings)
    Officer
    icon of calendar 2002-11-07 ~ 2006-12-22
    OF - Director → CIF 0
  • 11
    Lewis, Duncan James Daragon
    Company Director born in April 1951
    Individual (4 offsprings)
    Officer
    icon of calendar 2007-07-01 ~ 2016-03-19
    OF - Director → CIF 0
  • 12
    Gustafsson, Anders
    Chief Executive born in June 1960
    Individual
    Officer
    icon of calendar 2004-08-01 ~ 2007-04-30
    OF - Director → CIF 0
  • 13
    Mccarthy, Colin Michael
    Director born in April 1937
    Individual
    Officer
    icon of calendar ~ 1999-12-31
    OF - Director → CIF 0
  • 14
    Masri, Edgar
    Company Director born in January 1958
    Individual
    Officer
    icon of calendar 2018-01-11 ~ 2025-10-15
    OF - Director → CIF 0
  • 15
    Westhead, John Michael, Dr
    Director born in November 1928
    Individual
    Officer
    icon of calendar ~ 1999-05-20
    OF - Director → CIF 0
  • 16
    Brookes, Nicholas Kelvin
    Chief Executive born in May 1947
    Individual
    Officer
    icon of calendar 1995-07-01 ~ 2004-06-30
    OF - Director → CIF 0
  • 17
    Vice, Henry Anthony
    Director born in December 1930
    Individual
    Officer
    icon of calendar ~ 1999-09-09
    OF - Director → CIF 0
  • 18
    Beresford, Marcus De La Poer
    Director born in May 1942
    Individual (1 offspring)
    Officer
    icon of calendar 1999-05-21 ~ 2006-12-22
    OF - Director → CIF 0
  • 19
    Iveson, Angus Edward
    Individual (4 offsprings)
    Officer
    icon of calendar 2014-10-27 ~ 2025-10-15
    OF - Secretary → CIF 0
  • 20
    Koh, Wendy Meng Weng
    Business Executive born in February 1969
    Individual
    Officer
    icon of calendar 2018-01-11 ~ 2025-10-15
    OF - Director → CIF 0
  • 21
    Lantzsch, Thomas Paul
    Director born in April 1960
    Individual
    Officer
    icon of calendar 2015-05-11 ~ 2017-03-03
    OF - Director → CIF 0
  • 22
    Hutchinson, Eric George
    Accountant born in May 1955
    Individual (5 offsprings)
    Officer
    icon of calendar 2000-01-01 ~ 2019-05-01
    OF - Director → CIF 0
  • 23
    Updyke, Eric Allen
    Company Director born in October 1966
    Individual
    Officer
    icon of calendar 2019-05-01 ~ 2025-10-15
    OF - Director → CIF 0
  • 24
    Bramson, Edward John
    Director born in March 1951
    Individual
    Officer
    icon of calendar 2006-12-22 ~ 2010-05-05
    OF - Director → CIF 0
  • 25
    Anscombe, Michael John
    Individual (1 offspring)
    Officer
    icon of calendar 2007-07-01 ~ 2009-05-06
    OF - Secretary → CIF 0
  • 26
    Whiting, Rachel Elizabeth
    Chartered Accountant born in October 1961
    Individual (3 offsprings)
    Officer
    icon of calendar 2014-02-01 ~ 2016-05-04
    OF - Director → CIF 0
    Whiting, Rachel Elizabeth
    Individual (3 offsprings)
    Officer
    icon of calendar 2009-05-06 ~ 2014-10-27
    OF - Secretary → CIF 0
  • 27
    Thomas, William Gennydd, Sir
    Company Director born in November 1959
    Individual
    Officer
    icon of calendar 2016-12-01 ~ 2025-10-15
    OF - Director → CIF 0
  • 28
    Penny, William Alfred, Professor
    Company Director born in August 1925
    Individual
    Officer
    icon of calendar 1992-05-21 ~ 1996-05-22
    OF - Director → CIF 0
  • 29
    Buggie, Margaret Mary
    Technology Executive born in October 1978
    Individual
    Officer
    icon of calendar 2021-04-29 ~ 2025-10-15
    OF - Director → CIF 0
  • 30
    Sarney, George William, Dr
    Director born in July 1939
    Individual
    Officer
    icon of calendar 1996-08-01 ~ 2002-04-30
    OF - Director → CIF 0
  • 31
    Eastman Jr, Gerard L
    Director born in January 1958
    Individual
    Officer
    icon of calendar 2006-12-22 ~ 2010-05-05
    OF - Director → CIF 0
  • 32
    Maxwell, Thomas James
    Company Director born in July 1947
    Individual (2 offsprings)
    Officer
    icon of calendar 2007-10-01 ~ 2017-05-03
    OF - Director → CIF 0
  • 33
    Moley, Richard Michael
    Director born in March 1939
    Individual
    Officer
    icon of calendar 2000-04-01 ~ 2005-05-04
    OF - Director → CIF 0
  • 34
    Silver, Jonathan Charles
    Director born in September 1957
    Individual (7 offsprings)
    Officer
    icon of calendar 2015-06-26 ~ 2025-10-15
    OF - Director → CIF 0
  • 35
    Arnaouti, Michael
    Individual (93 offsprings)
    Officer
    icon of calendar 1992-07-01 ~ 2001-12-31
    OF - Secretary → CIF 0
  • 36
    Chung, My Engu
    Director born in August 1952
    Individual (1 offspring)
    Officer
    icon of calendar 2001-05-09 ~ 2004-09-03
    OF - Director → CIF 0
  • 37
    Eardley, Paul Rex
    Individual (12 offsprings)
    Officer
    icon of calendar 2001-12-31 ~ 2007-07-01
    OF - Secretary → CIF 0
  • 38
    Bullard, Gary Bruce
    Company Director born in April 1957
    Individual (7 offsprings)
    Officer
    icon of calendar 2016-12-01 ~ 2025-10-15
    OF - Director → CIF 0
  • 39
    Burns, William
    Group Chief Executive Officer born in July 1967
    Individual
    Officer
    icon of calendar 2008-11-06 ~ 2013-09-03
    OF - Director → CIF 0
  • 40
    Parsons, Raymond Arthur
    Director born in July 1911
    Individual
    Officer
    icon of calendar ~ 1993-05-17
    OF - Director → CIF 0
  • 41
    D`alessio, Frederick Daniel
    Non Executive Director born in January 1949
    Individual
    Officer
    icon of calendar 2004-01-26 ~ 2006-12-22
    OF - Director → CIF 0
  • 42
    Brindle, Ian
    Director born in August 1943
    Individual (2 offsprings)
    Officer
    icon of calendar 2006-12-22 ~ 2015-08-07
    OF - Director → CIF 0
  • 43
    Biss, Adele
    Company Director born in October 1944
    Individual (1 offspring)
    Officer
    icon of calendar 1993-09-01 ~ 1997-05-21
    OF - Director → CIF 0
  • 44
    Swenson, Susan Gail
    Company Director born in May 1948
    Individual
    Officer
    icon of calendar 2012-02-01 ~ 2017-03-08
    OF - Director → CIF 0
parent relation
Company in focus

SPIRENT COMMUNICATIONS PLC

Previous names
BOWTHORPE PLC - 2000-05-12
SPIRENT PLC - 2006-05-08
BOWTHORPE HOLDINGS PLC - 1992-05-20
Standard Industrial Classification
70100 - Activities Of Head Offices
61900 - Other Telecommunications Activities

Related profiles found in government register
  • SPIRENT COMMUNICATIONS PLC
    Info
    BOWTHORPE PLC - 2000-05-12
    SPIRENT PLC - 2000-05-12
    BOWTHORPE HOLDINGS PLC - 2000-05-12
    Registered number 00470893
    icon of addressOrigin One, 108 High Street, Crawley RH10 1BD
    PUBLIC LIMITED COMPANY incorporated on 1949-07-16 (76 years 5 months). The company status is Active.
    The last date of confirmation statement was made at 2025-06-13
    CIF 0
  • SPIRENT COMMUNICATIONS PLC
    S
    Registered number 470893
    icon of addressNorthwood Park, Northwood Park, Gatwick Road, Crawley, England, RH10 9XN
    Public Limited Company in Companies House, England
    CIF 1 CIF 2 CIF 3
child relation
Offspring entities and appointments
Active 18
  • 1
    SPIRENT LIMITED - 2000-05-12
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Equity (Company account)
    1 GBP2024-12-31
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 11 - Ownership of shares – 75% or moreOE
  • 2
    SCALEBLAKE LIMITED - 1985-05-15
    CAMBRIDGE MEDICAL EQUIPMENTS LIMITED - 1986-03-06
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 4 - Ownership of shares – 75% or moreOE
  • 3
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents, 2 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 15 - Ownership of voting rights - 75% or moreOE
  • 4
    EPITIRO GROUP LIMITED - 2019-11-05
    PURPLE SUN LIMITED - 2005-10-12
    EPITIRO LIMITED - 2011-07-15
    icon of addressBegbies Traynor Central Llp Town Wall House, Balkerne Hill, Colchester, Essex
    Dissolved Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    CIF 12 - Ownership of shares – 75% or moreOE
  • 5
    METRICO WIRELESS LIMITED - 2019-11-05
    icon of addressBegbies Traynor Central Llp Town Wall House, Balkerne Hill, Colchester, Essex
    Dissolved Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    CIF 17 - Ownership of shares – 75% or moreOE
  • 6
    SPIRENT COMMUNICATIONS (INTERNATIONAL) LIMITED - 2019-11-05
    SPIRENT COMMUNICATIONS LIMITED - 2006-04-24
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 14 - Ownership of shares – 75% or moreOE
  • 7
    INCOMETOTAL LIMITED - 1991-11-04
    SPIRENT COMMUNICATIONS (SCOTLAND) LIMITED - 2019-11-05
    EDGCUMBE INSTRUMENTS LIMITED - 2002-11-05
    icon of addressBegbies Traynor Central Llp Town Wall House, Balkerne Hill, Colchester, Essex
    Dissolved Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    CIF 6 - Ownership of shares – 75% or moreOE
  • 8
    BROOMCO (1328) LIMITED - 1997-09-19
    GLOBAL SIMULATION SYSTEMS LIMITED - 2000-10-02
    SPIRENT COMMUNICATIONS (SW) LIMITED - 2019-11-05
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Equity (Company account)
    1,000,000 GBP2024-12-31
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 7 - Ownership of shares – 75% or moreOE
  • 9
    TFDC LIMITED - 2019-11-05
    FLIGHT DATA COMPANY LIMITED(THE) - 2003-07-07
    icon of addressBegbies Traynor Central Llp Town Wall House, Balkerne Hill, Colchester, Essex
    Dissolved Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    CIF 3 - Ownership of shares – 75% or moreOE
  • 10
    PG INTERNATIONAL PLC - 2005-07-25
    PENNY AND GILES INTERNATIONAL PLC - 2002-03-25
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (3 parents, 1 offspring)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 1 - Ownership of shares – 75% or moreOE
  • 11
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (3 parents, 1 offspring)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 16 - Ownership of shares – More than 50% but less than 75%OE
  • 12
    BOWTHORPE CAPITAL LIMITED - 2000-05-12
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 10 - Ownership of shares – 75% or moreOE
  • 13
    BOWTHORPE FINANCIAL LIMITED - 2000-05-12
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 9 - Ownership of shares – 75% or moreOE
  • 14
    SPIRENT MANAGEMENT PLC - 2004-11-10
    BOWTHORPE MANAGEMENT PLC - 2000-06-30
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 18 - Ownership of shares – 75% or moreOE
  • 15
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 13 - Ownership of shares – 75% or moreOE
  • 16
    HELLERMANN DEUTSCH LIMITED - 1979-12-31
    BOWTHORPE HOLDINGS LIMITED - 1992-07-29
    SPIRENT (CRAWLEY) LIMITED - 2006-05-08
    BOWTHORPE LIMITED - 1992-05-20
    BOWTHORPE (CRAWLEY) LIMITED - 2000-06-30
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (3 parents)
    Equity (Company account)
    250,000 GBP2024-12-31
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 2 - Ownership of shares – 75% or moreOE
  • 17
    HACKREMCO (NO.1276) LIMITED - 1997-11-12
    SPIRENT QUEST LIMITED - 2004-10-27
    BOWTHORPE QUEST LIMITED - 2000-05-12
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (2 parents)
    Equity (Company account)
    1 GBP2024-12-31
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 8 - Ownership of shares – 75% or moreOE
  • 18
    THERMOMETRICS LIMITED - 2002-11-05
    EDGCUMBE INSTRUMENTS LIMITED - 2012-08-09
    DIGITEXPECT LIMITED - 1991-10-02
    EDGECUMBE INSTRUMENTS LIMITED - 2002-11-21
    icon of addressOrigin One, 108 High Street, Crawley, England
    Active Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 5 - Ownership of shares – More than 50% but less than 75%OE

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