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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

Siebert, Kevin Christopher

    Related profiles found in government register
  • Siebert, Kevin Christopher
    American born in November 1968

    Resident in United States

    Registered addresses and corresponding companies
    • Astor House, Newbury Business Park, London Road, Newbury, Berkshire, RG14 2PZ, England

      IIF 1 IIF 2
    • Longacres House, Six Hills Way, Stevenage, SG1 2AN, England

      IIF 3
  • Siebert, Kevin Christopher
    American general counsel born in November 1968

    Resident in United States

    Registered addresses and corresponding companies
    • Longacres House, Six Hills Way, Stevenage, SG1 2AN, England

      IIF 4
  • Siebert, Kevin Christopher, Mr.
    American born in November 1968

    Resident in United States

    Registered addresses and corresponding companies
    • Longacres House, Six Hills Way, Stevenage, Hertfordshire, SG1 2AN, England

      IIF 5
  • Siebert, Kevin Christopher, Mr.
    American lawyer born in November 1968

    Resident in United States

    Registered addresses and corresponding companies
    • Astor House, Newbury Business Park, London Road, Newbury, Berkshire, RG14 2PZ

      IIF 6
    • Office No 4, The Old Yard, Brasted, Westerham, Kent, TN16 1JP

      IIF 7
child relation
Offspring entities and appointments 7
  • 1
    AEROFLEX ASIA PACIFIC LIMITED
    - now 00934595
    IFR INTERNATIONAL LIMITED - 2003-08-20
    IFR INSTRUMENTS INTERNATIONAL LIMITED - 1998-03-02
    MARCONI INSTRUMENTS INTERNATIONAL LIMITED - 1998-02-20
    MARCONI-ELLIOTT MICROELECTRONICS LIMITED - 1996-01-12
    Longacres House, Six Hills Way, Stevenage
    Dissolved Corporate (24 parents)
    Officer
    2018-03-15 ~ dissolved
    IIF 4 - Director → ME
  • 2
    AEROFLEX LIMITED
    - now 00317241 04630259... (more)
    AEROFLEX INTERNATIONAL LIMITED - 2010-01-14
    IFR LIMITED - 2003-08-20
    IFR INSTRUMENTS LIMITED - 1998-03-02
    MARCONI INSTRUMENTS LIMITED - 1998-02-20
    Longacres House, Six Hills Way, Stevenage
    Active Corporate (32 parents, 1 offspring)
    Officer
    2018-03-15 ~ now
    IIF 3 - Director → ME
  • 3
    ARIESO LIMITED
    04515167
    Astor House Newbury Business Park, London Road, Newbury, Berkshire
    Dissolved Corporate (24 parents)
    Officer
    2015-02-27 ~ dissolved
    IIF 6 - Director → ME
  • 4
    COMTEST WIRELESS INTERNATIONAL LTD
    09524599
    Longacres House, Six Hills Way, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (6 parents)
    Officer
    2022-05-13 ~ now
    IIF 1 - Director → ME
  • 5
    COMTEST WIRELESS LIMITED
    06735280
    Longacres House, Six Hills Way, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (13 parents, 1 offspring)
    Officer
    2022-05-13 ~ now
    IIF 2 - Director → ME
  • 6
    NETWORK INSTRUMENTS UK LIMITED
    - now 08053378
    NET INSTRUMENTS UK LIMITED - 2013-06-24
    Office No 4 The Old Yard, Brasted, Westerham, Kent
    Dissolved Corporate (7 parents)
    Officer
    2015-02-27 ~ dissolved
    IIF 7 - Director → ME
  • 7
    VIAVI SOLUTIONS UK LIMITED
    - now 00887400
    JDSU UK LIMITED - 2015-10-05
    ACTERNA UK LIMITED - 2006-03-21
    ACTERNA PLYMOUTH LIMITED - 2003-01-03
    WAVETEK WANDEL GOLTERMANN PLYMOUTH LIMITED - 2001-01-12
    WANDEL & GOLTERMANN LIMITED - 1999-07-26
    W & G INSTRUMENTS LIMITED - 1985-10-01
    WANDEL & GOLTERMANN (U.K.) LIMITED - 1980-12-31
    Longacres House, Six Hills Way, Stevenage, Hertfordshire, England
    Active Corporate (26 parents, 4 offsprings)
    Officer
    2018-02-13 ~ now
    IIF 5 - Director → ME

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Contains public sector information retrieved at 5 April 2026 and licensed under the Open Government Licence v3.0.