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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

Mr Dennis Simon O'brien

    Related profiles found in government register
  • Mr Dennis Simon O'brien
    British born in July 1975

    Resident in England

    Registered addresses and corresponding companies
    • New Derwent House, 69-73 Theobalds Road, London, WC1X 8TA, United Kingdom

      IIF 1
    • Burleighfield House, London Road, Loudwater, Buckinghamshire, HP10 9RF, United Kingdom

      IIF 2 IIF 3
  • Mr Dennis Simon O'brien
    British born in July 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Mayfair House, 46 Boulevard, Weston-super-mare, North Somerset, BS23 1NF, United Kingdom

      IIF 4
  • O'brien, Dennis Simon
    British born in July 1975

    Resident in England

    Registered addresses and corresponding companies
  • O'brien, Dennis Simon
    British director born in July 1975

    Resident in England

    Registered addresses and corresponding companies
  • O'brien, Dennis Simon
    born in July 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Mayfair House, 46 Boulevard, Weston-super-mare, North Somerset, BS23 1NF, United Kingdom

      IIF 21
  • O'brien, Dennis
    British born in July 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Sea Containers House, 6th Floor, 22 Upper Ground, London, SE1 9PD, England

      IIF 22
    • Burleighfield House, London Road, Loudwater, Buckinghamshire, HP10 9RF, United Kingdom

      IIF 23
  • O'brien, Dennis
    British director born in July 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 30, Finsbury Square, London, EC2A 1AG

      IIF 24
child relation
Offspring entities and appointments 20
  • 1
    BANK SOURCE LIMITED
    05060736
    Jubilee House Third Avenue, Globe Park, Marlow, England
    Dissolved Corporate (7 parents)
    Officer
    2019-09-05 ~ dissolved
    IIF 19 - Director → ME
  • 2
    BLUE DOG DESIGN LIMITED
    03305384
    30 Finsbury Square, London
    Dissolved Corporate (9 parents)
    Officer
    2019-02-11 ~ dissolved
    IIF 14 - Director → ME
  • 3
    BLUE DOG HOLDINGS LIMITED
    05932302
    Jubilee House Third Avenue, Globe Park, Marlow, England
    Dissolved Corporate (10 parents, 1 offspring)
    Officer
    2019-02-11 ~ dissolved
    IIF 17 - Director → ME
  • 4
    HEALTHCARE 21 (HOLDINGS) LIMITED
    07592452
    Jubilee House Third Avenue, Globe Park, Marlow, England
    Dissolved Corporate (8 parents, 3 offsprings)
    Officer
    2019-09-05 ~ dissolved
    IIF 16 - Director → ME
  • 5
    HEALTHCARE 21 COMMUNICATIONS LIMITED
    - now 02841051
    MARLBOROUGH SCIENTIFIC COMMUNICATIONS LIMITED - 2001-07-25
    INTERSCIENCE MEDICAL COMMUNICATIONS LIMITED - 1995-03-13
    30 Finsbury Square, London
    Dissolved Corporate (9 parents, 1 offspring)
    Officer
    2019-09-05 ~ dissolved
    IIF 13 - Director → ME
  • 6
    HEXAGON COMMUNICATIONS 21 LIMITED
    10303024
    Jubilee House Third Avenue, Globe Park, Marlow, England
    Dissolved Corporate (3 parents)
    Officer
    2019-09-05 ~ dissolved
    IIF 18 - Director → ME
  • 7
    LASER BIDCO LIMITED
    13234624 13234781
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (11 parents, 1 offspring)
    Officer
    2021-03-05 ~ now
    IIF 6 - Director → ME
  • 8
    LASER HOLDCO LIMITED
    13236468
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (9 parents, 1 offspring)
    Officer
    2021-03-05 ~ now
    IIF 5 - Director → ME
  • 9
    LASER MIDCO LIMITED
    13234781 13234624
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (9 parents, 1 offspring)
    Officer
    2021-03-05 ~ now
    IIF 8 - Director → ME
  • 10
    LASER NOMINEECO LIMITED
    13236330
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (8 parents)
    Officer
    2021-03-05 ~ now
    IIF 7 - Director → ME
  • 11
    LASER TOPCO LIMITED
    13232622
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (9 parents, 2 offsprings)
    Officer
    2021-03-05 ~ now
    IIF 9 - Director → ME
  • 12
    LEADING EDGE MEDICAL EDUCATION LIMITED
    - now 09244315
    LEADING EDGE PARTNERS LIMITED
    - 2014-10-07 09244315
    30 Finsbury Square, London
    Dissolved Corporate (6 parents)
    Officer
    2014-10-01 ~ dissolved
    IIF 24 - Director → ME
  • 13
    LUCID GROUP COMMUNICATIONS LIMITED
    - now 09212331
    OVAL (2282) LIMITED
    - 2014-10-07 09212331 07090521... (more)
    Sea Containers House 6th Floor, 22 Upper Ground, London, England
    Active Corporate (8 parents, 6 offsprings)
    Officer
    2014-09-10 ~ now
    IIF 22 - Director → ME
    Person with significant control
    2016-04-06 ~ 2017-06-07
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 1 - Right to appoint or remove directors OE
    IIF 1 - Ownership of shares – More than 25% but not more than 50% OE
  • 14
    LUCID PARTNERS LIMITED
    06100383
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (7 parents)
    Officer
    2007-02-13 ~ now
    IIF 23 - Director → ME
  • 15
    MEDICAL EDUCATION GRANTS LIMITED
    10303401
    Jubilee House Third Avenue, Globe Park, Marlow, England
    Dissolved Corporate (3 parents)
    Officer
    2019-09-05 ~ dissolved
    IIF 20 - Director → ME
  • 16
    SHOO 802AA LIMITED
    10742755 11096305... (more)
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (14 parents, 1 offspring)
    Officer
    2017-04-26 ~ now
    IIF 10 - Director → ME
    Person with significant control
    2017-04-26 ~ 2017-06-07
    IIF 2 - Ownership of shares – 75% or more OE
    IIF 2 - Right to appoint or remove directors OE
    IIF 2 - Ownership of voting rights - 75% or more OE
    2017-06-07 ~ 2021-03-05
    IIF 3 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 3 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 17
    SHOO 803AA LIMITED
    10762067 11096305... (more)
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (8 parents, 1 offspring)
    Officer
    2017-05-09 ~ now
    IIF 11 - Director → ME
  • 18
    SYNETIC LIFE SCIENCES LIMITED
    12562217
    Sea Containers House 6th Floor, 22 Upper Ground, London, United Kingdom
    Active Corporate (8 parents)
    Officer
    2022-12-16 ~ now
    IIF 12 - Director → ME
  • 19
    TEAM ENABL LLP
    OC458654
    Mayfair House, 46 Boulevard, Weston-super-mare, North Somerset, United Kingdom
    Active Corporate (2 parents)
    Officer
    2025-10-29 ~ now
    IIF 21 - LLP Designated Member → ME
    Person with significant control
    2025-10-29 ~ now
    IIF 4 - Right to surplus assets - 75% or more OE
  • 20
    VIVID MEDCOMMS LIMITED
    11003248
    30 Finsbury Square, London
    Dissolved Corporate (5 parents)
    Officer
    2017-10-09 ~ dissolved
    IIF 15 - Director → ME

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