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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

Mr Johannes Kornelis Jan Sikkens

    Related profiles found in government register
  • Mr Johannes Kornelis Jan Sikkens
    Dutch born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • C/o Pwc Llp, One Chamberlain Square, Birmingham, B3 3AX, United Kingdom

      IIF 1
  • Mr Johannes Kornelis Jan Sikkens
    Dutch born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 222 Berkeley Street, 18th Floor, Boston, Ma 02116, United States

      IIF 2
  • Sikkens, Johannes Kornelis Jan
    Dutch born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • C/o Pwc Llp, One Chamberlain Square, Birmingham, B3 3AX, United Kingdom

      IIF 3
  • Sikkens, Johannes Kornelius Jan
    Dutch company director born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • Queensberry House, 3rd Floor, Old Burlington Street, London, W1S 3AE, England

      IIF 4
  • Mr Han Sikkens
    Dutch born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • 20, Lisburne Road, London, NW3 2NR, England

      IIF 5

    • Queensberry House, 3rd Floor, 3 Old Burlington Street, London, W1S 3AE, United Kingdom

      IIF 6

    • Queensbury House, 3 Old Burlington Street, London, W1S 3AE, England

      IIF 7
  • Sikkens, Johannes
    Dutch director born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • Suite 1, 3rd Floor, 11 - 12 St. James's Square, London, SW1Y 4LB, United Kingdom

      IIF 8
  • Sikkens, Johannes Kornelis Jan
    Dutch born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Sikkens, Johannes Kornelis Jan
    Dutch company director born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Maurice Wilkes Building, St John's Innovation Park, Cowley Road, Cambridge, CB4 0DS, United Kingdom

      IIF 12
  • Sikkens, Han
    Dutch born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • 18, Oxford Road, Marlow, Buckinghamshire, SL7 2NL

      IIF 13
  • Sikkens, Han
    Dutch company director born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • 18, Oxford Road, Marlow, Buckinghamshire, SL7 2NL

      IIF 14
  • Sikkens, Han
    Dutch none born in February 1978

    Resident in England

    Registered addresses and corresponding companies

    • Queensberry House 3rd Floor, 3 Old Burlington Street, London, W1S 3AE, United Kingdom

      IIF 15
  • Sikkens, Han
    Dutch born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 11-12, Hanover Square, London, W1S 1JJ

      IIF 16
  • Sikkens, Han
    Dutch company director born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Queensbury House, 3rd Floor, 3 Old Burlington Street, London, W1S 3AE, United Kingdom

      IIF 17
  • Sikkens, Han
    Dutch investment professional born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Queensberry House, 3 Old Burlington Street, London, W1S 3AE

      IIF 18 IIF 19
  • Sikkens, Han
    Dutch managing director born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Summit Partners Llp, Queensberry House, 3rd Floor, 3 Old Burlington Street, London, W1S 3AE, United Kingdom

      IIF 20
  • Sikkens, Han
    born in February 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 11-12, Hanover Square, London, W1S 1JJ

      IIF 21
child relation
Offspring entities and appointments 16
  • 1
    ACTURIS GROUP LIMITED
    - now 07278867
    SUMMIT PARTNERS SPV 2 LIMITED
    - 2010-07-27 07278867 07278844
    Courtyard Suite 100 Hatton Garden, London
    Active Corporate (18 parents, 1 offspring)
    Officer
    2010-06-21 ~ 2019-05-20
    IIF 18 - Director → ME
    Person with significant control
    2016-04-06 ~ 2019-05-20
    IIF 7 - Has significant influence or control → OE
  • 2
    ACTURIS INTERNATIONAL LIMITED
    - now 07278844
    SUMMIT PARTNERS SPV 1 LIMITED
    - 2010-07-21 07278844 07278867
    Courtyard Suite 100 Hatton Garden, London
    Active Corporate (13 parents, 3 offsprings)
    Officer
    2010-06-21 ~ 2019-05-20
    IIF 19 - Director → ME
    Person with significant control
    2016-04-06 ~ 2019-05-20
    IIF 5 - Has significant influence or control → OE
  • 3
    ADVANCE HOLDCO LIMITED
    11097729
    Suite 1, 3rd Floor 11 - 12 St. James's Square, London, United Kingdom
    Dissolved Corporate (14 parents)
    Equity (Company account)
    43,913,543 EUR2020-12-31
    Officer
    2018-02-23 ~ 2018-05-31
    IIF 8 - Director → ME
  • 4
    C&C TOPCO LIMITED
    08794967
    Cardinal House Abbeyfield Court, Abbeyfield Road, Nottingham, Nottinghamshire, United Kingdom
    Active Corporate (21 parents, 1 offspring)
    Person with significant control
    2020-11-23 ~ 2026-01-19
    IIF 2 - Right to appoint or remove directors → OE
  • 5
    CASABLANCA ESC HOLDINGS LTD
    14350744
    C/o Pwc Llp, One Chamberlain Square, Birmingham, United Kingdom
    Active Corporate (2 parents)
    Officer
    2022-09-12 ~ now
    IIF 3 - Director → ME
    Person with significant control
    2022-09-12 ~ now
    IIF 1 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 6
    DARKTRACE HOLDINGS LIMITED
    - now 08562035
    DARKTRACE LIMITED
    - 2021-03-29 08562035 13264637, 08554892, 13264637
    Maurice Wilkes Building St John's Innovation Park, Cowley Road, Cambridge, United Kingdom
    Active Corporate (23 parents, 2 offsprings)
    Officer
    2015-07-14 ~ 2021-05-04
    IIF 4 - Director → ME
  • 7
    DARKTRACE LIMITED - now 08554892, 08562035
    DARKTRACE PLC
    - 2024-10-09 13264637 08554892, 08562035
    SRENOOG PLC - 2021-03-30
    Maurice Wilkes Building, St John's Innovation Park, Cowley Road, Cambridge, United Kingdom
    Active Corporate (21 parents, 1 offspring)
    Officer
    2021-04-01 ~ 2024-10-01
    IIF 12 - Director → ME
  • 8
    LEIA 1 LIMITED
    10783550
    Queensberry House 3rd Floor, 3 Old Burlington Street, London, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    2017-05-22 ~ dissolved
    IIF 20 - Director → ME
    Person with significant control
    2017-05-22 ~ dissolved
    IIF 6 - Has significant influence or control → OE
  • 9
    MASTERNAUT BIDCO LIMITED
    08997563
    Lynton House, 7-12 Tavistock Square, London, England
    Active Corporate (31 parents, 3 offsprings)
    Net Assets/Liabilities (Company account)
    111,000 GBP2022-12-31
    Officer
    2014-04-28 ~ 2019-05-22
    IIF 17 - Director → ME
  • 10
    MASTERNAUT GROUP HOLDINGS LIMITED
    - now 07095782
    CYBIT GROUP HOLDINGS LIMITED - 2012-06-29
    CYBERSPACE BIDCO LIMITED - 2010-03-01
    Priory Park Great North Road, Aberford, Leeds, England
    Active Corporate (19 parents)
    Net Assets/Liabilities (Company account)
    51,000 GBP2022-12-31
    Officer
    2014-12-17 ~ 2019-05-22
    IIF 13 - Director → ME
  • 11
    MASTERNAUT HOLDINGS LIMITED
    - now 04134307
    CYBIT HOLDINGS LIMITED - 2012-06-29
    CYBIT HOLDINGS PLC - 2010-03-01
    SEVCO 1231 PLC - 2001-01-19 04056769, 08201033, 04541206... (more)
    Priory Park Great North Road, Aberford, Leeds, England
    Active Corporate (30 parents, 4 offsprings)
    Turnover/Revenue (Company account)
    1,000 GBP2022-01-01 ~ 2022-12-31
    Officer
    2014-12-17 ~ 2019-05-22
    IIF 14 - Director → ME
  • 12
    SP CEN HOLDCO LIMITED
    16263751
    11-12 Hanover Square, London, United Kingdom
    Active Corporate (3 parents, 1 offspring)
    Officer
    2025-02-19 ~ now
    IIF 11 - Director → ME
  • 13
    SP CEN MIDCO LIMITED
    16263562
    11-12 Hanover Square, London, United Kingdom
    Active Corporate (3 parents, 1 offspring)
    Officer
    2025-02-19 ~ now
    IIF 10 - Director → ME
  • 14
    SP CEN TOPCO LIMITED
    - now 16173814
    SP CEN UK HOLDCO LIMITED
    - 2025-03-04 16173814
    11-12 Hanover Square, London, United Kingdom
    Active Corporate (2 parents, 1 offspring)
    Officer
    2025-01-09 ~ now
    IIF 9 - Director → ME
  • 15
    SUMMIT PARTNERS (UK) ADVISORY LIMITED
    - now 04141197 OC388179
    SUMMIT PARTNERS LIMITED
    - 2014-04-09 04141197 OC388179
    BROOMCO (2459) LIMITED - 2001-02-23 04413851, 04240493, 04349739... (more)
    11-12 Hanover Square, London
    Active Corporate (18 parents, 1 offspring)
    Officer
    2013-10-11 ~ 2014-04-01
    IIF 15 - Director → ME
    2017-03-31 ~ now
    IIF 16 - Director → ME
  • 16
    SUMMIT PARTNERS LLP
    - now OC388179 04141197
    SUMMIT PARTNERS (UK) ADVISORY LLP
    - 2014-04-09 OC388179 04141197
    11-12 Hanover Square, London
    Active Corporate (20 parents, 1 offspring)
    Officer
    2014-04-01 ~ now
    IIF 21 - LLP Member → ME

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