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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

Swain, Martin James

    Related profiles found in government register
  • Swain, Martin James
    British born in December 1975

    Resident in England

    Registered addresses and corresponding companies
    • 4th Floor, 3 More London Riverside, London, SE1 2AQ, United Kingdom

      IIF 1 IIF 2
    • 5th-6th Floor, Uk House 164, 182 Oxford St, London, W1D 1NN, England

      IIF 3 IIF 4
    • Octopus Energy Generation, 5th Floor, United Kingdom House, 164-182 Oxford Street, London, W1D 1NN, United Kingdom

      IIF 5
    • Uk House, 5th Floor, 164-182 Oxford Street, London, W1D 1NN, United Kingdom

      IIF 6 IIF 7 IIF 8
    • 18 Riversway Business Village, Navigation Way, Preston, Lancashire, PR2 2YP, United Kingdom

      IIF 11 IIF 12
  • Swain, Martin James
    British company director born in December 1975

    Resident in England

    Registered addresses and corresponding companies
    • 156, Mulgrave Road, Cheam, Sutton, Surrey, SM2 6JS, England

      IIF 13
  • Swain, Martin James
    British consultant born in December 1975

    Resident in England

    Registered addresses and corresponding companies
    • Arun House, Hurst Road, Horsham, West Sussex, RH12 2DN, England

      IIF 14
  • Mr Martin James Swain
    British born in December 1975

    Resident in England

    Registered addresses and corresponding companies
    • 156 Mulgrave Road, Cheam, Sutton, Surrey, SM2 6JS, England

      IIF 15
  • Swain, Martin James
    British consultant

    Registered addresses and corresponding companies
    • Arun House, Hurst Road, Horsham, West Sussex, RH12 2DN, England

      IIF 16
child relation
Offspring entities and appointments 14
  • 1
    ANNO 2017 JOINT HOLDING (UK) LIMITED
    10827562
    8 White Oak Square, London Road, Swanley, Kent, United Kingdom
    Active Corporate (19 parents, 1 offspring)
    Officer
    2025-06-11 ~ now
    IIF 5 - Director → ME
  • 2
    BILBAO OFFSHORE HOLDING LIMITED
    12099853
    18 Riversway Business Village, Navigation Way, Preston, Lancashire, United Kingdom
    Active Corporate (22 parents, 1 offspring)
    Officer
    2025-06-12 ~ now
    IIF 12 - Director → ME
  • 3
    BILBAO OFFSHORE INVESTMENT LIMITED
    12097709
    18 Riversway Business Village, Navigation Way, Preston, Lancashire, United Kingdom
    Active Corporate (23 parents, 1 offspring)
    Officer
    2025-06-12 ~ now
    IIF 11 - Director → ME
  • 4
    CALLISTO OFFSHORE WIND HOLDINGS LIMITED
    14229705 14230318
    4th Floor 3 More London Riverside, London, United Kingdom
    Active Corporate (10 parents, 1 offspring)
    Officer
    2025-07-01 ~ now
    IIF 2 - Director → ME
  • 5
    CALLISTO OFFSHORE WIND LIMITED
    14230318 14229705
    4th Floor 3 More London Riverside, London, United Kingdom
    Active Corporate (9 parents)
    Officer
    2025-07-01 ~ now
    IIF 1 - Director → ME
  • 6
    MARTIN J SWAIN LIMITED
    08029526
    156 Mulgrave Road, Cheam, Sutton, Surrey
    Dissolved Corporate (1 parent)
    Officer
    2012-04-13 ~ dissolved
    IIF 13 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 15 - Ownership of voting rights - 75% or more OE
    IIF 15 - Ownership of shares – 75% or more OE
    IIF 15 - Right to appoint or remove directors OE
  • 7
    OCTOPUS PRIMO HOLDCO LIMITED
    15273889
    Uk House, 5th Floor, 164-182 Oxford Street, London, United Kingdom
    Active Corporate (6 parents, 1 offspring)
    Officer
    2025-06-24 ~ now
    IIF 8 - Director → ME
  • 8
    OCTOPUS PRIMO LIMITED
    15276065
    Uk House, 5th Floor, 164-182 Oxford Street, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2025-07-01 ~ now
    IIF 10 - Director → ME
  • 9
    OCTOPUS PRIMO TOPCO LIMITED
    15272008
    Uk House, 5th Floor, 164-182 Oxford Street, London, United Kingdom
    Active Corporate (5 parents, 1 offspring)
    Officer
    2025-07-01 ~ now
    IIF 7 - Director → ME
  • 10
    OEOW UK HOLDINGS LIMITED
    16304392
    Uk House, 5th Floor, 164-182 Oxford Street, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    2025-03-10 ~ now
    IIF 9 - Director → ME
  • 11
    REIP V WIND HOLDINGS LIMITED
    14990937
    Uk House 5th Floor, 164-182 Oxford Street, London, United Kingdom
    Active Corporate (5 parents)
    Officer
    2025-07-01 ~ now
    IIF 6 - Director → ME
  • 12
    SOUTHWATER BUSINESS RESOURCE CENTRE LIMITED
    03941292
    Arun House, Hurst Road, Horsham, West Sussex
    Dissolved Corporate (5 parents)
    Officer
    2001-03-01 ~ dissolved
    IIF 14 - Director → ME
    2001-03-01 ~ dissolved
    IIF 16 - Secretary → ME
  • 13
    WALNEY EXTENSION HOLDINGS LIMITED
    10899680
    5 Howick Place, London
    Active Corporate (30 parents, 1 offspring)
    Officer
    2025-06-11 ~ now
    IIF 4 - Director → ME
  • 14
    WALNEY EXTENSION LIMITED
    - now 07306956
    DONG ENERGY WALNEY EXTENSION (UK) LTD - 2017-08-21
    5 Howick Place, London, England
    Active Corporate (35 parents)
    Officer
    2025-06-11 ~ now
    IIF 3 - Director → ME

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.