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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

Clarke, Mary Siobhan

    Related profiles found in government register
  • Clarke, Mary Siobhan
    British born in September 1977

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 20, First Floor, Swan Buildings, Swan Street, Manchester, M4 5JW, England

      IIF 1
    • Sunbury Secretaries Limited, Chertsey Road, Sunbury On Thames, Middlesex, England

      IIF 2
  • Clarke, Mary Siobhan
    British oil company executive born in September 1977

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Chertsey Road, Sunbury On Thames, Middlesex, TW16 7BP, United Kingdom

      IIF 3 IIF 4 IIF 5
  • Clarke, Mary Siobhan
    British venture capitalist born in September 1977

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Episode I Ventures, 4th Floor, 112-116 New Oxford Street, Fitzrovia, London, WC1A 1HH, United Kingdom

      IIF 6
  • Clarke, Mary Siobhan
    British born in September 1977

    Resident in England

    Registered addresses and corresponding companies
    • 63, University Road, Belfast, BT7 1NF

      IIF 7
    • Beco Building, 58 Kingston Street, Glasgow, G5 8BP, Scotland

      IIF 8
    • 3 Tapley House, Wolseley Street, London, SE1 2BW, England

      IIF 9
    • Particle Leap Ltd, Swan Buildings, 20 Swan Street, Manchester, M4 5JW, England

      IIF 10
  • Clarke, Mary Siobhan
    British oil company executive born in September 1977

    Resident in England

    Registered addresses and corresponding companies
    • 1, More London Place, London, SE1 2AF

      IIF 11
    • Chertsey Road, Sunbury On Thames, Middlesex, TW16 7BP, United Kingdom

      IIF 12
  • Ms Mary Siobhan Clarke
    British born in September 1977

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 20, First Floor, Swan Buildings, Swan Street, Manchester, M4 5JW, England

      IIF 13
child relation
Offspring entities and appointments 11
  • 1
    CSCOUT LTD
    09879640
    14 Elfrida Crescent, London, England
    Dissolved Corporate (5 parents)
    Officer
    2019-02-21 ~ 2019-12-01
    IIF 6 - Director → ME
  • 2
    FOTECH GROUP LIMITED
    - now 07714273
    FOTECH SENSING SOLUTIONS LIMITED - 2011-09-09
    1 More London Place, London
    Liquidation Corporate (25 parents, 2 offsprings)
    Officer
    2022-01-17 ~ 2023-04-29
    IIF 11 - Director → ME
    2019-12-12 ~ 2020-09-17
    IIF 5 - Director → ME
  • 3
    INSIGHT ANALYTICS SOLUTIONS HOLDINGS LIMITED
    10510632 10511025
    27 Old Gloucester Street, London, United Kingdom
    Active Corporate (28 parents, 2 offsprings)
    Officer
    2020-09-10 ~ 2021-04-15
    IIF 2 - Director → ME
  • 4
    LOW CARBON FRIENDS LIMITED
    12453523
    C/o Bdo Llp 5 Temple Square, Temple Street, Liverpool
    Dissolved Corporate (8 parents)
    Officer
    2020-02-10 ~ 2023-09-13
    IIF 3 - Director → ME
  • 5
    LYTT LIMITED
    - now 11722079
    BP DIAGNOSTIC ACOUSTIC SENSING LIMITED - 2019-08-02
    1 More London Place, London
    Liquidation Corporate (19 parents)
    Officer
    2022-01-27 ~ 2023-09-13
    IIF 12 - Director → ME
  • 6
    PARTICLE LEAP LTD
    11473253
    Flat 3, Tapley House, Wolseley Street, London, England
    Active Corporate (1 parent)
    Officer
    2018-07-19 ~ now
    IIF 1 - Director → ME
    Person with significant control
    2018-07-19 ~ now
    IIF 13 - Ownership of shares – 75% or more OE
    IIF 13 - Right to appoint or remove directors OE
    IIF 13 - Ownership of voting rights - 75% or more OE
  • 7
    QUBIS LIMITED
    NI017859
    Queen's University Belfast, 63 University Road, Belfast
    Active Corporate (56 parents, 23 offsprings)
    Officer
    2025-11-01 ~ now
    IIF 7 - Director → ME
  • 8
    STFC INNOVATIONS LIMITED
    - now 04361684
    CENTRAL LABORATORY INNOVATION AND KNOWLEDGE TRANSFER LIMITED - 2009-07-14
    MOSTLINE LIMITED - 2002-03-27
    R71 Rutherford Appleton Laboratory, Harwell Oxford, Didcot, Oxfordshire
    Active Corporate (33 parents, 8 offsprings)
    Officer
    2023-07-01 ~ now
    IIF 10 - Director → ME
  • 9
    STREAMBA LTD
    SC389674
    28 Albyn Place, Aberdeen, United Kingdom
    Active Corporate (12 parents)
    Officer
    2024-05-15 ~ now
    IIF 8 - Director → ME
  • 10
    STRYDE LIMITED
    12136455
    C/o Halkin, 1-2 Paris Garden, London, United Kingdom
    Active Corporate (19 parents, 1 offspring)
    Officer
    2020-04-20 ~ 2023-09-15
    IIF 4 - Director → ME
  • 11
    SUPERCRITICAL SOLUTIONS LTD
    12702979
    Wow Workspace Brentham Old Power Station, Western Ave, London, United Kingdom
    Active Corporate (9 parents)
    Officer
    2025-07-16 ~ now
    IIF 9 - Director → ME

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