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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

Simon, Mark Douglas

  • Simon, Mark Douglas
    American born in August 1958

    Resident in United States

    Registered addresses and corresponding companies
    • 29-35 Bolton Road, Luton, Bedfordshire, LU1 3HY

      IIF 1
    • 1515, Grundys Lane, Bristol, Pa 19007, United States

      IIF 2
    • 1515, Grundy's Lane, Bristol, Pennsylvania, 19007, United States

      IIF 3
    • C/o L-3, 1515 Grundy's Lane, Bristol, PA 19007, United States

      IIF 4
    • Unit 12, Murrills Estate, Fareham, Hampshire, PO16 9RD

      IIF 5
child relation
Offspring entities and appointments 5
  • 1
    FAST HOLDINGS LIMITED
    - now 04240493
    BROOMCO (2588) LIMITED - 2001-07-24
    Victory Point, Lyon Way, Frimley, Camberley, Surrey, England
    Active Corporate (48 parents, 1 offspring)
    Officer
    2009-04-17 ~ 2018-08-01
    IIF 4 - Director → ME
  • 2
    L3HARRIS AUTONOMOUS SURFACE VEHICLES LIMITED - now
    AUTONOMOUS SURFACE VEHICLES LIMITED
    - 2022-01-10 03689515
    1 Blossom Yard, Fourth Floor, London, United Kingdom
    Active Corporate (27 parents)
    Officer
    2018-09-18 ~ 2019-10-10
    IIF 5 - Director → ME
  • 3
    L3HARRIS CYBER-CYONYX UK LTD - now
    L3HARRIS TRENCHANT LTD - 2026-07-01
    LINCHPIN LABS LIMITED
    - 2022-01-27 09068202
    1 Blossom Yard, Fourth Floor, London, United Kingdom
    Active Corporate (16 parents)
    Officer
    2018-08-31 ~ 2019-08-30
    IIF 2 - Director → ME
  • 4
    L3HARRIS MAPPS LIMITED - now
    L3 MAPPS LIMITED
    - 2022-01-07 05341813
    L-3 COMMUNICATIONS MARINE SYSTEMS UK LIMITED
    - 2018-04-13 05341813
    920 Hempton Court Park Avenue, Aztec West, Bristol, United Kingdom
    Active Corporate (24 parents, 1 offspring)
    Officer
    2009-08-10 ~ 2019-08-30
    IIF 3 - Director → ME
  • 5
    LEIDOS SECURITY & AUTOMATION LIMITED - now
    Insolvency (Case 1) Members voluntary liquidation
    Commencement of winding up on 2022-10-24
    MACDONALD HUMFREY (AUTOMATION) LIMITED
    - 2020-05-28 02263923
    Unit 3 Bedford Link Logistic Park, Kempston, Bedfordshire, United Kingdom
    Liquidation Corporate (22 parents, 3 offsprings)
    Officer
    2016-11-22 ~ 2019-08-30
    IIF 1 - Director → ME

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Contains public sector information retrieved at 14 July 2026 and licensed under the Open Government Licence v3.0.