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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.

Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Duffell, Mark Antony

    Related profiles found in government register
  • Duffell, Mark Antony
    American chief executive officer born in February 1962

    Resident in United States

    Registered addresses and corresponding companies
    • 209 Airport Road West, Belfast, County Antrim, BT3 9EZ, United Kingdom

      IIF 1 IIF 2
    • Siena Court, Broadway, Maidenhead, Berkshire, SL6 1NJ, England

      IIF 3
  • Duffell, Mark Antony
    American director born in February 1962

    Resident in United States

    Registered addresses and corresponding companies
    • Accel-kkr, 2500 Sand Hill Road, Suite 300, Menlo Park, California, CA 94025, United States

      IIF 4 IIF 5
  • Duffell, Mark Antony
    American investor born in February 1962

    Resident in United States

    Registered addresses and corresponding companies
    • Accel - Kkr, 2500 Sand Hill Road, Suite 300, Menlo Park, Ca, 94025, Usa

      IIF 6
  • Duffell, Mark Antony
    American none born in February 1962

    Resident in United States

    Registered addresses and corresponding companies
    • Accel Kkr, 2500 Sand Hill Road, Suite 300, Menlo Park, California Ca 94025, CA 94025, United States

      IIF 7
child relation
Offspring entities and appointments 7
  • 1
    BEECHGOLD CONSULTANTS LIMITED
    NI038032
    C/o Lagan Technologies Limited, Concourse Ii Queens Road, Queens Island, Belfast, Antrim, Northern Ireland
    Dissolved Corporate (13 parents)
    Officer
    2010-11-03 ~ dissolved
    IIF 1 - Director → ME
  • 2
    EKTRON EUROPE LIMITED
    06331342
    Prince Consort House, 109 - 111 Farringdon Road, London, United Kingdom
    Dissolved Corporate (13 parents)
    Officer
    2015-03-23 ~ dissolved
    IIF 6 - Director → ME
  • 3
    ENDEAVOUR ACQUISITION UK LIMITED
    09320942
    3rd Floor Cargo Works, Enterprise House, 1-2 Hatfields, London, United Kingdom
    Dissolved Corporate (10 parents, 3 offsprings)
    Officer
    2015-01-26 ~ dissolved
    IIF 4 - Director → ME
  • 4
    KANA SOFTWARE LIMITED
    - now 03666154
    BROADBASE SOFTWARE LTD - 2001-09-05
    FREEDOMPORT LIMITED - 1998-11-13
    241 Brooklands Road, Weybridge, Surrey
    Dissolved Corporate (23 parents, 1 offspring)
    Officer
    2010-11-03 ~ 2014-07-31
    IIF 3 - Director → ME
  • 5
    LAGAN TECHNOLOGIES LIMITED
    NI028773
    Concourse Ii Queens Road, Queens Island, Belfast, Antrim
    Dissolved Corporate (36 parents, 1 offspring)
    Officer
    2010-11-03 ~ 2014-07-31
    IIF 2 - Director → ME
  • 6
    OPTIMIZELY LTD - now
    EPISERVER UK LIMITED
    - 2023-01-17 06060169 07387442
    PEERIUS LTD
    - 2019-03-18 06060169 07387442
    KAY MEDIA SERVICES LIMITED - 2008-01-21
    60 St Martins Lane, 4th Floor, Covent Garden, London, United Kingdom
    Active Corporate (17 parents, 1 offspring)
    Equity (Company account)
    -20,199,611 GBP2024-12-31
    Officer
    2016-08-30 ~ 2019-04-26
    IIF 7 - Director → ME
  • 7
    PEERIUS LTD
    - now 07387442 06060169
    EPISERVER UK LIMITED
    - 2019-03-18 07387442 06060169
    3rd Floor Cargo Works, Enterprise House, 1-2 Hatfields, London, United Kingdom
    Dissolved Corporate (11 parents)
    Officer
    2015-04-01 ~ 2019-04-26
    IIF 5 - Director → ME

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Contains public sector information retrieved at 9 February 2026 and licensed under the Open Government Licence v3.0.