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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

Walls, Colm Brendan

    Related profiles found in government register
  • Walls, Colm Brendan
    British born in January 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • Ascent 4, Farnborough Aerospace Centre, Farnborough, Hampshire, GU14 6XW, United Kingdom

      IIF 1
    • 123, Pall Mall, London, SW1Y 5EA, England

      IIF 2 IIF 3 IIF 4
    • 123, Pall Mall, London, SW1Y 5EA, United Kingdom

      IIF 5 IIF 6
    • Iona Capital Ltd, 123, Pall Mall, London, SW1Y 5EA, United Kingdom

      IIF 7 IIF 8
    • 36, Lancet Lane, Maidstone, ME15 9SA, England

      IIF 9
  • Walls, Colm Brendan
    British fin controller born in January 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Walls, Colm Brendan
    British finance director born in January 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 123, Pall Mall, London, SW1Y 5EA, England

      IIF 17
  • Walls, Colm Brendan
    British financial controller born in January 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 36, Lancet Lane, Maidstone, Kent, ME15 9SA

      IIF 18
  • Walls, Colm Brendan
    born in January 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 123 Pall Mall, London, SW1Y 5EA, United Kingdom

      IIF 19 IIF 20
  • Mr Colm Brendan Walls
    British born in January 1975

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 123 Pall Mall, London, SW1Y 5EA, United Kingdom

      IIF 21 IIF 22
    • 36, Lancet Lane, Maidstone, ME15 9SA, England

      IIF 23
  • Mr Colm Brendan Walls
    British born in January 1975

    Resident in England

    Registered addresses and corresponding companies
    • Iona Capital Ltd, 123, Pall Mall, London, SW1Y 5EA, United Kingdom

      IIF 24
  • Walls, Colm

    Registered addresses and corresponding companies
    • 123, Pall Mall, London, SW1Y 5EA, United Kingdom

      IIF 25
child relation
Offspring entities and appointments
Active 12
  • 1
    Level 4,9 Haymarket Square, Edinburgh, Scotland
    Dissolved Corporate (4 parents)
    Equity (Company account)
    100 GBP2023-06-30
    Officer
    2022-01-14 ~ dissolved
    IIF 17 - Director → ME
  • 2
    Ascent 4 Farnborough Aerospace Centre, Farnborough, Hampshire, United Kingdom
    Active Corporate (2 parents)
    Officer
    2025-12-17 ~ now
    IIF 1 - Director → ME
  • 3
    123 Pall Mall, London, United Kingdom
    Active Corporate (2 parents)
    Officer
    2021-02-23 ~ now
    IIF 19 - LLP Designated Member → ME
    Person with significant control
    2021-02-23 ~ now
    IIF 21 - Right to appoint or remove membersOE
    IIF 21 - Ownership of voting rights - More than 25% but not more than 50%OE
  • 4
    123 Pall Mall, London, United Kingdom
    Active Corporate (2 parents)
    Officer
    2021-02-23 ~ now
    IIF 20 - LLP Designated Member → ME
    Person with significant control
    2021-02-23 ~ now
    IIF 22 - Ownership of voting rights - More than 25% but not more than 50%OE
    IIF 22 - Right to appoint or remove membersOE
  • 5
    IONA ENVIRONMENTAL INFRASTRUCTURE HOLDCO LIMITED - 2025-04-28
    123 Pall Mall, London, England
    Active Corporate (4 parents, 10 offsprings)
    Equity (Company account)
    -28,481,863 GBP2024-03-31
    Officer
    2020-02-07 ~ now
    IIF 3 - Director → ME
  • 6
    IONA ENVIRONMENTAL INFRASTRUCTURE PARENTCO LIMITED - 2025-04-28
    123 Pall Mall, London, England
    Active Corporate (4 parents, 1 offspring)
    Equity (Company account)
    -32,563,832 GBP2024-03-31
    Officer
    2020-02-06 ~ now
    IIF 4 - Director → ME
  • 7
    IONA CAPITAL LTD - 2025-04-28
    ACUITY CAPITAL MANAGEMENT LIMITED - 2011-05-19 03836547
    ELECTRA QUOTED MANAGEMENT LIMITED - 2008-02-19 03836547
    ELECTRA FLEMING QUOTED MANAGEMENT LIMITED - 1999-07-28 03836547
    ELECTRA MANAGEMENT LIMITED - 1995-09-21 01624489
    ELECTRA RISK CAPITAL P.L.C. - 1990-12-04
    ELECTRA MANAGEMENT P.L.C. - 1986-07-17
    ELECTRA RISK CAPITAL P.L.C. - 1985-04-25
    123 Pall Mall, London, England
    Active Corporate (8 parents, 27 offsprings)
    Equity (Company account)
    2,566,240 GBP2020-03-31
    Officer
    2018-06-20 ~ now
    IIF 2 - Director → ME
  • 8
    IMS HOLDCO LTD - 2025-04-28
    123 Pall Mall, London, England
    Active Corporate (4 parents, 1 offspring)
    Officer
    2024-12-04 ~ now
    IIF 5 - Director → ME
  • 9
    36 Lancet Lane, Maidstone, England
    Active Corporate (1 parent)
    Equity (Company account)
    14,287 GBP2024-03-31
    Officer
    2017-08-22 ~ now
    IIF 9 - Director → ME
    Person with significant control
    2017-08-22 ~ now
    IIF 23 - Ownership of shares – 75% or more with control over the trustees of a trustOE
  • 10
    123 Pall Mall, London, England
    Active Corporate (3 parents, 4 offsprings)
    Officer
    2024-11-12 ~ now
    IIF 6 - Director → ME
    2024-11-12 ~ now
    IIF 25 - Secretary → ME
  • 11
    Iona Capital Ltd, 123 Pall Mall, London, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    1 GBP2024-11-30
    Officer
    2024-11-12 ~ now
    IIF 8 - Director → ME
  • 12
    Iona Capital Ltd, 123 Pall Mall, London, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    1 GBP2024-11-30
    Officer
    2024-11-12 ~ now
    IIF 7 - Director → ME
Ceased 9

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