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

Director Karl Eric Johnsen

    Related profiles found in government register
  • Director Karl Eric Johnsen
    American born in October 1968

    Resident in United States

    Registered addresses and corresponding companies
    • Aspen Technology, Inc., 20 Crosby Drive, Bedford, Ma, 01730, United States

      IIF 1
  • Johnsen, Karl Eric
    American cfo born in October 1968

    Resident in United States

    Registered addresses and corresponding companies
    • C2 Reading International, Business Park Basingsto, Reading International Business Park, Reading, RG2 6DT

      IIF 2
  • Johnsen, Karl Eric
    American director born in October 1968

    Resident in United States

    Registered addresses and corresponding companies
    • 60 Constitution Street, Constitution Street, Edinburgh, EH6 6RR, Scotland

      IIF 3 IIF 4
    • C2, Reading International Business Park, Basingstoke Road, Reading, Berkshire, RG2 6DT, England

      IIF 5
  • Johnsen, Karl Eric
    American finance born in October 1968

    Resident in United States

    Registered addresses and corresponding companies
    • C/o Skadden, Arps, Slate, Meagher & Flom (uk) Llp, 40 Bank Street, Canary Wharf, London, E14 5DS, United Kingdom

      IIF 6
  • Johnsen, Karl Eric, Director
    American cfo born in October 1968

    Resident in United States

    Registered addresses and corresponding companies
    • Crosby Drive, 20 Crosby Drive, Bedford, Ma, 01730, United States

      IIF 7
  • Johnsen, Karl Eric, Director
    American director born in October 1968

    Resident in United States

    Registered addresses and corresponding companies
    • C2 Reading International Business Park, C2 Reading International Business Park, Basingstoke Road, Reading, RG2 6DT, England

      IIF 8
child relation
Offspring entities and appointments
Active 1
  • 1
    C/o Skadden, Arps, Slate, Meagher & Flom (uk) Llp 40 Bank Street, Canary Wharf, London, United Kingdom
    Dissolved corporate (3 parents)
    Officer
    2016-01-07 ~ dissolved
    IIF 6 - director → ME
Ceased 6
  • 1
    DYNAPROC LTD. - 2011-02-21
    60 Constitution Street Constitution Street, Edinburgh, Scotland
    Dissolved corporate (3 parents, 1 offspring)
    Equity (Company account)
    -372 GBP2021-06-30
    Officer
    2018-02-05 ~ 2021-03-22
    IIF 3 - director → ME
    Person with significant control
    2018-02-05 ~ 2021-03-22
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 2
    60 Constitution Street Constitution Street, Edinburgh, Scotland
    Dissolved corporate (4 parents)
    Equity (Company account)
    3,383,503 GBP2021-06-30
    Officer
    2018-02-05 ~ 2021-03-22
    IIF 4 - director → ME
  • 3
    C2 Reading International Business Park, Basingstoke Road, Reading, Berkshire, England
    Corporate (3 parents)
    Equity (Company account)
    832,769 GBP2023-06-30
    Officer
    2019-06-13 ~ 2021-03-22
    IIF 5 - director → ME
  • 4
    ASPENTECH UK LTD. - 1997-08-08
    PROSYS TECHNOLOGY LIMITED - 1991-11-14
    TRUSHELFCO (NO. 548) LIMITED - 1983-06-03
    C2 Reading International Bus Park Reading International Business Park, Basingstoke Road, Reading, Berkshire
    Corporate (4 parents, 3 offsprings)
    Equity (Company account)
    28,873 GBP2019-06-30
    Officer
    2015-10-01 ~ 2021-03-22
    IIF 7 - director → ME
  • 5
    EVER 1566 LIMITED - 2001-11-09
    C2 Reading International, Business Park Basingsto, Reading International Business Park, Reading
    Dissolved corporate (5 parents)
    Equity (Company account)
    1,658 GBP2019-06-30
    Officer
    2015-10-01 ~ 2021-03-22
    IIF 2 - director → ME
  • 6
    FRENEY LIMITED - 2010-12-22
    PML 20 LIMITED - 2003-05-29
    C2 Reading International Business Park C2 Reading International Business Park, Basingstoke Road, Reading, England
    Dissolved corporate (5 parents)
    Officer
    2019-06-13 ~ 2021-03-22
    IIF 8 - director → ME
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Contains public sector information retrieved at 24 April 2025 and licensed under the Open Government Licence v3.0.