logo
explain how to read the page

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

Siebert, Kevin Christopher

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

    Resident in United States

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

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

      IIF 3 IIF 4
  • Siebert, Kevin Christopher, Mr.
    American general counsel born in November 1968

    Resident in United States

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

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

      IIF 7
child relation
Offspring entities and appointments
Active 7
  • 1
    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
    icon of address Longacres House, Six Hills Way, Stevenage
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2018-03-15 ~ dissolved
    IIF 4 - Director → ME
  • 2
    IFR INSTRUMENTS LIMITED - 1998-03-02
    IFR LIMITED - 2003-08-20
    AEROFLEX INTERNATIONAL LIMITED - 2010-01-14
    MARCONI INSTRUMENTS LIMITED - 1998-02-20
    icon of address Longacres House, Six Hills Way, Stevenage
    Active Corporate (4 parents, 1 offspring)
    Officer
    icon of calendar 2018-03-15 ~ now
    IIF 3 - Director → ME
  • 3
    icon of address Astor House Newbury Business Park, London Road, Newbury, Berkshire
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2015-02-27 ~ dissolved
    IIF 6 - Director → ME
  • 4
    icon of address Longacres House, Six Hills Way, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    122,432 GBP2024-12-31
    Officer
    icon of calendar 2022-05-13 ~ now
    IIF 1 - Director → ME
  • 5
    icon of address Longacres House, Six Hills Way, Stevenage, Hertfordshire, United Kingdom
    Active Corporate (3 parents, 1 offspring)
    Equity (Company account)
    502,981 GBP2024-12-31
    Officer
    icon of calendar 2022-05-13 ~ now
    IIF 2 - Director → ME
  • 6
    NET INSTRUMENTS UK LIMITED - 2013-06-24
    icon of address Office No 4 The Old Yard, Brasted, Westerham, Kent
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2015-02-27 ~ dissolved
    IIF 7 - Director → ME
  • 7
    WANDEL & GOLTERMANN LIMITED - 1999-07-26
    W & G INSTRUMENTS LIMITED - 1985-10-01
    WAVETEK WANDEL GOLTERMANN PLYMOUTH LIMITED - 2001-01-12
    WANDEL & GOLTERMANN (U.K.) LIMITED - 1980-12-31
    ACTERNA PLYMOUTH LIMITED - 2003-01-03
    ACTERNA UK LIMITED - 2006-03-21
    JDSU UK LIMITED - 2015-10-05
    icon of address Longacres House, Six Hills Way, Stevenage, Hertfordshire, England
    Active Corporate (3 parents, 4 offsprings)
    Officer
    icon of calendar 2018-02-13 ~ now
    IIF 5 - Director → ME

The content of this website is protected by AgonGuard.

© 2022-2025 Polylogarithmic Technology Ltd (Registered in England and Wales No. 14256313). All rights reserved.

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