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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

Leask, John Alexander Brian

    Related profiles found in government register
  • Leask, John Alexander Brian
    British

    Registered addresses and corresponding companies
    • Old Timbers, Mill Hill, Alresford, Hampshire, SO24 9DD

      IIF 1 IIF 2
  • Leask, John Alexander Brian
    British born in May 1936

    Registered addresses and corresponding companies
    • Old Timbers, Mill Hill, Alresford, Hampshire, SO24 9DD

      IIF 3 IIF 4
  • Leask, John Alexander Brian
    British commercial director born in May 1936

    Registered addresses and corresponding companies
    • Old Timbers, Mill Hill, Alresford, Hampshire, SO24 9DD

      IIF 5
  • Leask, John Alexander Brian
    British retired born in May 1936

    Registered addresses and corresponding companies
    • Old Timbers, Mill Hill, Alresford, Hampshire, SO24 9DD

      IIF 6
child relation
Offspring entities and appointments 6
  • 1
    OPTIMAL COMMUNICATIONS LIMITED - now
    OPTIMAL MONITORING LIMITED - 2008-11-18
    OPT-TEL SYSTEMS MANAGEMENT LIMITED
    - 2006-04-29 02906057 03068943
    OPT-TEL SERVICES LIMITED
    - 1996-03-26 02906057 02625820
    COMMUNICATIONS SYSTEMS MANAGEMENT LIMITED
    - 1995-01-12 02906057 02965497
    GAILYHOLD LIMITED
    - 1994-08-30 02906057
    13-19 Station Road, Gerrards Cross, Buckinghamshire
    Dissolved Corporate (14 parents)
    Officer
    1994-08-25 ~ 1998-11-30
    IIF 3 - Director → ME
  • 2
    OPTIMAL MONITORING SERVICES LTD - now
    OPTIMAL COMMUNICATIONS SERVICES LIMITED - 2009-04-30
    UK COMMUNICATIONS SERVICES LIMITED - 2006-02-15
    OPT-TEL HOLDINGS LIMITED
    - 2003-01-15 03426721
    NEW OPT-TEL HOLDINGS LIMITED
    - 1997-09-08 03426721
    4th Floor, 80 Great Portland Street, London
    Dissolved Corporate (14 parents)
    Officer
    1997-08-29 ~ 1998-11-30
    IIF 2 - Secretary → ME
  • 3
    OPTIMAL TECHNOLOGY LIMITED - now
    OPT-TEL TECHNOLOGY LIMITED
    - 2006-04-29 03068943
    OPT-TEL COMPANY ONE LIMITED
    - 1996-06-17 03068943
    OPT-TEL SYSTEMS MANAGEMENT LIMITED
    - 1996-03-26 03068943 02906057
    CENTRALSERVE LIMITED - 1995-07-04
    13-19 Station Road, Gerrards Cross, Buckinghamshire
    Dissolved Corporate (12 parents)
    Officer
    1996-03-08 ~ 1998-11-30
    IIF 1 - Secretary → ME
  • 4
    OPTIMAL WIRELESS LIMITED - now
    OPT-TEL TELECOMS LIMITED - 2006-04-29
    OPTIMAL COMMUNICATIONS LIMITED - 1999-10-11
    COMMUNICATIONS SYSTEMS MANAGEMENT LIMITED
    - 1999-08-10 02965497 02906057
    SHININGMIST LIMITED
    - 1995-01-12 02965497
    13-19 Station Road, Gerrards Cross, Buckinghamshire
    Dissolved Corporate (13 parents)
    Officer
    1994-10-25 ~ 1998-11-30
    IIF 4 - Director → ME
  • 5
    ROYAL THAMES YACHT CLUB LIMITED
    04636726
    60 Knightsbridge, London
    Active Corporate (106 parents, 2 offsprings)
    Officer
    2003-01-14 ~ 2003-12-31
    IIF 6 - Director → ME
  • 6
    SPPT LIMITED - now
    TELEFFICIENCY II LIMITED
    - 1999-06-16 03326628
    TELEFFICIENCY 2 LIMITED - 1997-05-15
    PHASETEST LIMITED - 1997-03-26
    Kpmg Llp, 15 Canada Square, London
    Dissolved Corporate (27 parents)
    Officer
    1998-01-09 ~ 1998-11-30
    IIF 5 - Director → ME

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Contains public sector information retrieved at 22 April 2026 and licensed under the Open Government Licence v3.0.