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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

James, Darren Glyn

    Related profiles found in government register
  • James, Darren Glyn
    British born in June 1967

    Resident in Wales

    Registered addresses and corresponding companies

    • Dwr Cymru Welsh Water, Linea, Fortran Road, St. Mellons, Cardiff, CF3 0LT, Wales

      IIF 1 IIF 2

    • Unit 4, Potteric Carr Industrial Estate, Potteric Carr Road, Doncaster, DN4 5NP, England

      IIF 3

    • 11, Hanover Square, London, W1S 1JJ, England

      IIF 4 IIF 5 IIF 6

    • 2nd Floor, 1 Lindsey Street, Lindsey Street, London, EC1A 9HP, England

      IIF 7 IIF 8 IIF 9

    • 2nd Floor, 1 Lindsey Street, London, EC1A 9HP, England

      IIF 14 IIF 15 IIF 16

    • Aureos Infrastructure Services, 2nd Floor, 1 Lindsey St, Barbican, London, EC1A 9HP, England

      IIF 18

    • 34, Mountain Road, Craig-cefn-parc, Clydach, Swansea, SA6 5RH, United Kingdom

      IIF 19
  • James, Darren Glyn
    British chartered civil engineer born in June 1967

    Resident in Wales

    Registered addresses and corresponding companies
  • James, Darren Glyn
    British company director born in June 1967

    Resident in Wales

    Registered addresses and corresponding companies
  • James, Darren Glyn
    British director born in June 1967

    Resident in Wales

    Registered addresses and corresponding companies

    • St. Andrews House, Portsmouth Road, Esher, KT10 9TA, England

      IIF 38 IIF 39 IIF 40

    • St. Andrews House, Portsmouth Road, Esher, Surrey, KT10 9TA, England

      IIF 42

    • Costain House, Vanwall Business Park, Maidenhead, Berkshire, SL6 4UB

      IIF 43

    • Costain House, Vanwall Business Park, Maidenhead, Berkshire, SL6 4UB, England

      IIF 44
  • James, Darren Glyn
    British managing director - infrastructure born in June 1967

    Resident in Wales

    Registered addresses and corresponding companies

    • 12th, Floor Quayside Tower, 252-260 Broad Street, Birmingham, B1 2HF, England

      IIF 45
  • Mr Darren Glyn James
    British born in June 1967

    Resident in Wales

    Registered addresses and corresponding companies

    • St. Andrews House, Portsmouth Road, Esher, KT10 9TA, England

      IIF 46
child relation
Offspring entities and appointments
Active 21
  • 1
    Aureos Infrastructure Services 2nd Floor, 1 Lindsey St, Barbican, London, England
    Active Corporate (7 parents)
    Equity (Company account)
    497,120 GBP2024-11-30
    Officer
    2025-06-09 ~ now
    IIF 18 - Director → ME
  • 2
    KELTBRAY ENERGY LIMITED - 2024-12-20
    KELTBRAY INFRASTRUCTURE LIMITED - 2020-10-26
    2nd Floor, 1 Lindsey Street, Lindsey Street, London, England
    Active Corporate (6 parents, 6 offsprings)
    Officer
    2020-10-28 ~ now
    IIF 9 - Director → ME
  • 3
    KELTBRAY HIGHWAYS LIMITED - 2024-12-20
    AK HIGHWAYS LIMITED - 2021-10-08
    2nd Floor, 1 Lindsey Street, Lindsey Street, London, England
    Active Corporate (5 parents)
    Officer
    2021-10-07 ~ now
    IIF 13 - Director → ME
  • 4
    KELTBRAY INFRASTRUCTURE MANAGEMENT SERVICES LIMITED - 2024-12-20
    2nd Floor, 1 Lindsey Street, Lindsey Street, London, England
    Active Corporate (5 parents)
    Officer
    2024-03-19 ~ now
    IIF 8 - Director → ME
  • 5
    KELTBRAY INFRASTRUCTURE PLANT LIMITED - 2025-01-27
    2nd Floor, 1 Lindsey Street, Lindsey Street, London, England
    Active Corporate (5 parents)
    Profit/Loss (Company account)
    -2,592,134 GBP2023-05-19 ~ 2024-10-31
    Officer
    2023-05-19 ~ now
    IIF 10 - Director → ME
  • 6
    KELTBRAY INFRASTRUCTURE SERVICES LIMITED - 2024-12-20
    2nd Floor, 1 Lindsey Street, Lindsey Street, London, England
    Active Corporate (5 parents, 7 offsprings)
    Officer
    2023-05-19 ~ now
    IIF 12 - Director → ME
  • 7
    KELTBRAY RAIL LIMITED - 2025-01-21
    KELTBRAY ASPIRE LIMITED - 2020-10-26
    KELTBRAY ASPIRE RAIL LIMITED - 2018-03-10
    ASPIRE RAIL CONSULTANTS LIMITED - 2010-11-08
    2nd Floor, 1 Lindsey Street, Lindsey Street, London, England
    Active Corporate (5 parents)
    Officer
    2020-09-11 ~ now
    IIF 7 - Director → ME
  • 8
    WENTWORTH HOUSE RAIL SYSTEMS LIMITED - 2025-01-21
    KELTBRAY MARINE SERVICES LIMITED - 2012-03-15
    2nd Floor, 1 Lindsey Street, Lindsey Street, London, England
    Active Corporate (5 parents)
    Officer
    2020-10-28 ~ now
    IIF 11 - Director → ME
  • 9
    St. Andrews House, Portsmouth Road, Esher, England
    Dissolved Corporate (7 parents)
    Officer
    2022-03-09 ~ dissolved
    IIF 38 - Director → ME
  • 10
    Dwr Cymru Welsh Water Linea, Fortran Road, St. Mellons, Cardiff, Wales
    Active Corporate (11 parents, 3 offsprings)
    Officer
    2025-01-01 ~ now
    IIF 2 - Director → ME
  • 11
    IRISH POWER CONSTRUCTION LIMITED - 2016-01-25
    Ecos Centre, Kernohans Lane, Ballymena, Northern Ireland
    Active Corporate (8 parents)
    Total Assets Less Current Liabilities (Company account)
    155,673 GBP2016-05-31
    Officer
    2024-08-15 ~ now
    IIF 15 - Director → ME
  • 12
    Jubilee Court, Copgrove, Harrogate, England
    Active Corporate (8 parents)
    Equity (Company account)
    732,119 GBP2025-03-31
    Officer
    2025-09-17 ~ now
    IIF 16 - Director → ME
  • 13
    6 Inchmuir Road, Whitehill Industrial Estate, Bathgate, Scotland
    Active Corporate (7 parents)
    Equity (Company account)
    1,198,337 GBP2024-11-30
    Officer
    2025-04-14 ~ now
    IIF 17 - Director → ME
  • 14
    Dwr Cymru Welsh Water Linea, Fortran Road, St. Mellons, Cardiff, Wales
    Active Corporate (10 parents, 2 offsprings)
    Officer
    2025-01-01 ~ now
    IIF 1 - Director → ME
  • 15
    HELIX RAIL LIMITED - 2025-05-14
    2nd Floor 1 Lindsey Street, London, England
    Active Corporate (6 parents)
    Equity (Company account)
    66,757 GBP2024-08-31
    Officer
    2025-03-26 ~ now
    IIF 14 - Director → ME
  • 16
    11 Hanover Square, London, England
    Active Corporate (10 parents, 1 offspring)
    Officer
    2024-08-15 ~ now
    IIF 6 - Director → ME
  • 17
    11 Hanover Square, London, England
    Active Corporate (10 parents, 1 offspring)
    Officer
    2024-08-15 ~ now
    IIF 4 - Director → ME
  • 18
    St. Andrews House, Portsmouth Road, Esher, England
    Dissolved Corporate (2 parents)
    Officer
    2024-02-14 ~ dissolved
    IIF 40 - Director → ME
    Person with significant control
    2024-02-14 ~ dissolved
    IIF 46 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 46 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 46 - Right to appoint or remove directors → OE
  • 19
    11 Hanover Square, London, England
    Active Corporate (9 parents, 1 offspring)
    Officer
    2024-08-15 ~ now
    IIF 5 - Director → ME
  • 20
    Kings Buildings, 16 Smith Square, London, England
    Active Corporate (12 parents)
    Profit/Loss (Company account)
    -1,321,181 GBP2023-04-01 ~ 2024-03-31
    Officer
    2016-03-01 ~ now
    IIF 19 - Director → ME
  • 21
    BIGGER VIEW BUILDING LIMITED - 2020-10-06
    Unit 4 Potteric Carr Road, Doncaster, England
    Active Corporate (5 parents)
    Equity (Company account)
    1 GBP2024-07-31
    Officer
    2021-09-17 ~ now
    IIF 3 - Director → ME
Ceased 24
  • 1
    Alstom, Litchurch Lane, Derby, England
    Active Corporate (10 parents)
    Officer
    2012-08-29 ~ 2013-12-19
    IIF 45 - Director → ME
  • 2
    SIMULATION SYSTEMS LIMITED - 2016-07-15
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (4 parents)
    Officer
    2016-07-05 ~ 2020-03-31
    IIF 44 - Director → ME
  • 3
    COSTAIN CIVIL ENGINEERING LIMITED - 1999-06-24
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (7 parents, 14 offsprings)
    Officer
    2008-07-10 ~ 2020-03-31
    IIF 20 - Director → ME
  • 4
    LAND & MARINE ENGINEERING LIMITED - 1991-10-30
    LAND & MARINE ENGINEERING (HOLDINGS) LIMITED - 1984-03-01
    LAND & MARINE ENGINEERING LIMITED - 1983-11-23
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Active Corporate (5 parents, 1 offspring)
    Officer
    2016-01-06 ~ 2020-03-31
    IIF 43 - Director → ME
  • 5
    St. Andrews House, Portsmouth Road, Esher, England
    Active Corporate (4 parents)
    Equity (Company account)
    1 GBP2024-10-31
    Officer
    2022-08-23 ~ 2024-08-15
    IIF 41 - Director → ME
  • 6
    St. Andrews House, Portsmouth Road, Esher, England
    Active Corporate (4 parents)
    Equity (Company account)
    1 GBP2023-08-31
    Officer
    2022-08-23 ~ 2024-08-15
    IIF 39 - Director → ME
  • 7
    St. Andrews House, Portsmouth Road, Esher, Surrey, England
    Active Corporate (4 parents, 1 offspring)
    Profit/Loss (Company account)
    -6,522,904 GBP2023-05-19 ~ 2024-10-31
    Officer
    2023-05-19 ~ 2024-08-15
    IIF 42 - Director → ME
  • 8
    KELTBRAY DEMOLITION AND CIVIL ENGINEERING LIMITED - 2020-11-12
    St. Andrews House, Portsmouth Road, Esher, England
    Active Corporate (7 parents, 1 offspring)
    Equity (Company account)
    11,438,405 GBP2024-10-31
    Officer
    2020-10-28 ~ 2024-08-15
    IIF 30 - Director → ME
  • 9
    St. Andrews House, Portsmouth Road, Esher, England
    Active Corporate (4 parents, 1 offspring)
    Equity (Company account)
    8,001 GBP2024-10-31
    Officer
    2020-10-27 ~ 2024-08-15
    IIF 27 - Director → ME
  • 10
    KELTBRAY HUNT LIMITED - 2011-10-27
    St Andrew's House, Portsmouth Road, Esher, Surrey
    Active Corporate (3 parents)
    Equity (Company account)
    673,867 GBP2024-10-31
    Officer
    2020-10-28 ~ 2024-08-15
    IIF 36 - Director → ME
  • 11
    KELTBRAY GOLF ENVIRONMENTAL LIMITED - 2013-11-05
    GOLF ENVIRONMENTAL LIMITED - 2011-01-12
    GOLF STRATEGIES (HAINAULT) LIMITED - 2010-02-03
    St Andrews House, Portsmouth Road, Esher, Surrey
    Active Corporate (3 parents)
    Equity (Company account)
    38,070 GBP2024-10-31
    Officer
    2020-10-28 ~ 2021-06-30
    IIF 35 - Director → ME
  • 12
    ECONOMIC PLANT LIMITED - 2001-08-24
    ORMSIDE CONTRACTORS LIMITED - 2000-11-20
    St Andrew's House, Portsmouth Road, Esher, Surrey
    Active Corporate (3 parents, 4 offsprings)
    Equity (Company account)
    Retained earnings (accumulated losses)
    2,361,078 GBP2022-11-01
    Officer
    2020-06-24 ~ 2021-06-30
    IIF 34 - Director → ME
  • 13
    St. Andrews House, Portsmouth Road, Esher, England
    Active Corporate (9 parents, 2 offsprings)
    Equity (Company account)
    18,647,502 GBP2024-10-31
    Officer
    2020-10-28 ~ 2024-08-15
    IIF 28 - Director → ME
  • 14
    St Andrew's House, Portsmouth Road, Esher, Surrey
    Active Corporate (3 parents, 4 offsprings)
    Equity (Company account)
    -23,142,875 GBP2024-10-31
    Officer
    2020-10-27 ~ 2021-06-30
    IIF 33 - Director → ME
  • 15
    St. Andrews House, Portsmouth Road, Esher, England
    Active Corporate (8 parents, 2 offsprings)
    Equity (Company account)
    691,309 GBP2024-10-31
    Officer
    2020-10-28 ~ 2024-08-15
    IIF 29 - Director → ME
  • 16
    ECONOMIC PLANT LIMITED - 2001-11-01
    KELTBRAY GROUP (HOLDINGS) LIMITED - 2001-08-24
    ECONOMIC PLANT LIMITED - 2000-11-20
    St. Andrew's House, Portsmouth Road, Esher, Surrey
    Active Corporate (7 parents, 1 offspring)
    Equity (Company account)
    1,375,901 GBP2024-10-31
    Officer
    2020-10-28 ~ 2024-08-15
    IIF 31 - Director → ME
  • 17
    St Andrew's House, Portsmouth Road, Esher, Surrey, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    -377,704 GBP2024-10-31
    Officer
    2020-10-28 ~ 2021-06-30
    IIF 37 - Director → ME
  • 18
    38-40 Bank Street, Belfast, Northern Ireland
    Active Corporate (6 parents, 3 offsprings)
    Profit/Loss (Company account)
    -464,151 GBP2023-11-01 ~ 2024-10-31
    Officer
    2020-10-28 ~ 2024-08-15
    IIF 26 - Director → ME
  • 19
    JEFCO SERVICES LIMITED - 2008-05-29
    JEFCO CONSTRUCTION LIMITED - 1990-10-29
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    2011-08-20 ~ 2020-03-31
    IIF 23 - Director → ME
  • 20
    THERMAL ENERGY CONSTRUCTION LIMITED - 2009-01-22
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    2011-08-20 ~ 2020-03-31
    IIF 25 - Director → ME
  • 21
    PROMANEX LIMITED - 2008-05-29
    BAWOL SERVICES LIMITED - 1996-08-28
    Seventh Floor, 70 St Mary Axe, London, United Kingdom
    Dissolved Corporate (4 parents)
    Officer
    2011-08-20 ~ 2020-03-31
    IIF 24 - Director → ME
  • 22
    HAMSARD 3024 LIMITED - 2007-04-27
    Costain House, Vanwall Business Park, Maidenhead, Berkshire
    Dissolved Corporate (4 parents, 1 offspring)
    Officer
    2011-08-20 ~ 2020-03-31
    IIF 22 - Director → ME
  • 23
    Costain House, Vanwall Business Park, Maidenhead, Berkshire
    Dissolved Corporate (4 parents)
    Officer
    2011-08-20 ~ 2020-03-31
    IIF 21 - Director → ME
  • 24
    St. Andrew's House, Portsmouth Road, Esher, Surrey
    Active Corporate (6 parents)
    Equity (Company account)
    3,093,160 GBP2024-10-31
    Officer
    2020-10-27 ~ 2024-08-15
    IIF 32 - Director → ME

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.