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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

Smith, William Johnson Harkin

    Related profiles found in government register
  • Smith, William Johnson Harkin
    British born in November 1977

    Resident in Scotland

    Registered addresses and corresponding companies
    • Arnott House, 12-16 Bridge Street, Belfast, BT1 1LS

      IIF 1
    • Maxim 7, Maxim Office Park, Parklands Avenue, Eurocentral, Holytown, ML1 4WQ, Scotland

      IIF 2
    • Maxim 7, Maxim Office Park, Parklands Avenue, Eurocentral, Holytown, Scotland, ML1 4WQ, Scotland

      IIF 3
    • 5, Churchill Place, Canary Wharf, London, England, E14 5HU, England

      IIF 4 IIF 5 IIF 6
  • Smith, William Johnson Harkin
    British chief executive born in November 1977

    Resident in Scotland

    Registered addresses and corresponding companies
    • 4 St Paul's Churchyard, London, EC1M 4HF, United Kingdom

      IIF 8
    • 4 St. Paul's Churchyard, London, EC4M 8AY, England

      IIF 9 IIF 10 IIF 11
    • 4 St. Paul's Churchyard, London, EC4M 8AY, United Kingdom

      IIF 12
  • Smith, William Johnson Harkin
    British managing director born in November 1977

    Resident in Scotland

    Registered addresses and corresponding companies
    • 5, Churchill Place, Canary Wharf, London, England, E14 5HU, England

      IIF 13
  • Smith, William Johnson Harkin
    born in November 1977

    Resident in Scotland

    Registered addresses and corresponding companies
    • 4 St Paul's Churchyard, London, EC1M 4HF, United Kingdom

      IIF 14
child relation
Offspring entities and appointments
Active 8
  • 1
    CRUICKSHANKS LIMITED - 2009-06-29
    CRUICKSHANK & PARTNERS LIMITED - 1999-11-02
    Midmill Business Park, Tumulus Way, Kintore, Aberdeenshire
    Active Corporate (4 parents)
    Officer
    2022-01-14 ~ now
    IIF 2 - Director → ME
  • 2
    BALFOUR BEATTY ENGINEERING SERVICES LIMITED - 2017-01-16 00169240, 00215402, 02300623... (more)
    BALFOUR KILPATRICK LIMITED - 2009-06-29 00255342
    Maxim 7, Maxim Office Park Parklands Avenue, Eurocentral, Holytown, Scotland, Scotland
    Active Corporate (8 parents)
    Officer
    2022-01-14 ~ now
    IIF 3 - Director → ME
  • 3
    DUNCAN WATSON LIMITED - 2009-11-24
    5 Churchill Place, Canary Wharf, London, England, England
    Active Corporate (4 parents)
    Officer
    2022-01-14 ~ now
    IIF 7 - Director → ME
  • 4
    Mcgrigors Belfast Llp, Arnott House, 12-16 Bridge Street, Belfast
    Active Corporate (4 parents)
    Officer
    2022-01-14 ~ now
    IIF 1 - Director → ME
  • 5
    HADEN LIMITED - 1986-11-14
    HADEN CARRIER LIMITED - 1981-12-31
    5 Churchill Place, Canary Wharf, London, England, England
    Active Corporate (4 parents)
    Officer
    2022-01-14 ~ now
    IIF 6 - Director → ME
  • 6
    POWER TRANSMISSION LIMITED - 2010-01-13
    MAINJUST LIMITED - 1996-06-11
    CARRIER ROSS ENGINEERING LIMITED - 1989-05-16
    HADEN CARRIER-ROSS LIMITED - 1985-01-11
    CARRIER-ROSS ENGINEERING COMPANY,LIMITED - 1982-01-11
    5 Churchill Place, Canary Wharf, London, England, England
    Active Corporate (4 parents)
    Officer
    2022-01-14 ~ now
    IIF 5 - Director → ME
  • 7
    J. JEFFREYS & CO. LIMITED - 2009-11-24
    5 Churchill Place, Canary Wharf, London, England, England
    Active Corporate (4 parents)
    Officer
    2022-01-14 ~ now
    IIF 4 - Director → ME
  • 8
    4 St. Paul's Churchyard, London, England
    Dissolved Corporate (4 parents)
    Officer
    2020-02-21 ~ dissolved
    IIF 11 - Director → ME
Ceased 6
  • 1
    HADEN YOUNG LIMITED - 2009-06-30 00236196
    5 Churchill Place, Canary Wharf, London, England, England
    Active Corporate (5 parents)
    Officer
    2022-01-14 ~ 2024-11-04
    IIF 13 - Director → ME
  • 2
    1 Fellmongers Path, Tower Bridge Road, London, England
    Active Corporate (4 parents, 8 offsprings)
    Equity (Company account)
    3,709,883 GBP2023-12-31
    Officer
    2020-02-21 ~ 2021-04-02
    IIF 12 - Director → ME
  • 3
    MHBC CUMMING LTD - 2025-03-19
    MHBC LTD - 2019-03-29
    1 Fellmongers Path, Tower Bridge Road, London, England
    Active Corporate (3 parents, 1 offspring)
    Equity (Company account)
    3,725,236 GBP2024-12-31
    Officer
    2020-02-21 ~ 2021-04-02
    IIF 8 - Director → ME
  • 4
    MELLERSH & HARDING BUILDING CONSULTANCY LLP - 2024-07-05
    1 Fellmongers Path, Tower Bridge Road, London, England
    Active Corporate (3 parents)
    Current Assets (Company account)
    486,775 GBP2024-12-31
    Officer
    2020-02-21 ~ 2021-04-02
    IIF 14 - LLP Designated Member → ME
  • 5
    PROSURV CONSULT LIMITED - 2024-07-05 11504803
    1 Fellmongers Path, Tower Bridge Road, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    1,182,138 GBP2024-12-31
    Officer
    2020-02-21 ~ 2021-04-02
    IIF 10 - Director → ME
  • 6
    TOWEREIGHT LIMITED - 2021-05-13
    TOWER8 LIMITED - 2016-02-12
    GOLDSTROW PROJECTS LIMITED - 2011-08-01
    1 Fellmongers Path, Tower Bridge Road, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    3,211,949 GBP2024-12-31
    Officer
    2020-02-21 ~ 2021-04-02
    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.