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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

Porter, Colin Howard

    Related profiles found in government register
  • Porter, Colin Howard
    British born in March 1950

    Resident in England

    Registered addresses and corresponding companies
    • Hardy House, Northbridge Road, Berkhamsted, HP4 1EF, England

      IIF 1 IIF 2 IIF 3
    • 16 Milebush, Leighton Buzzard, Bedfordshire, LU7 2UB

      IIF 4
  • Porter, Colin Howard
    British chartered engineer born in March 1950

    Resident in England

    Registered addresses and corresponding companies
    • 16 Milebush, Leighton Buzzard, Bedfordshire, LU7 2UB

      IIF 5
  • Porter, Colin Howard
    British director marketing born in March 1950

    Resident in England

    Registered addresses and corresponding companies
    • 16 Milebush, Leighton Buzzard, Bedfordshire, LU7 2UB

      IIF 6
  • Porter, Colin Howard
    British electrical engineer born in March 1950

    Resident in England

    Registered addresses and corresponding companies
    • The Institution Of Engineering And Technology, 2 Savoy Place, London, WC2R 0BL, United Kingdom

      IIF 7
  • Porter, Colin Howard
    British engineer born in March 1950

    Resident in England

    Registered addresses and corresponding companies
    • 16 Milebush, Leighton Buzzard, Bedfordshire, LU7 2UB

      IIF 8
    • 24, High Holborn, London, WC1V 6AZ, England

      IIF 9
  • Porter, Colin Howard
    British engineering director born in March 1950

    Resident in England

    Registered addresses and corresponding companies
    • 16 Milebush, Leighton Buzzard, Bedfordshire, LU7 2UB

      IIF 10 IIF 11
  • Porter, Colin Howard
    British

    Registered addresses and corresponding companies
    • 16 Milebush, Leighton Buzzard, Bedfordshire, LU7 2UB

      IIF 12
  • Porter, Colin Howard
    British engineer

    Registered addresses and corresponding companies
    • 16 Milebush, Leighton Buzzard, Bedfordshire, LU7 2UB

      IIF 13
child relation
Offspring entities and appointments 11
  • 1
    IET CONVENTIONS LIMITED - now
    IEE CONVENTIONS LIMITED
    - 2023-11-27 03566585
    RESTAPPLY LIMITED - 1998-08-19
    Iet Legal Department, Savoy Place, London, United Kingdom
    Active Corporate (73 parents, 2 offsprings)
    Officer
    2007-12-10 ~ 2011-09-30
    IIF 10 - Director → ME
  • 2
    IET SERVICES LIMITED
    - now 00909719 02151642
    PETER PEREGRINUS LIMITED - 2006-03-31
    Iet Legal Department, Savoy Place, London, United Kingdom
    Active Corporate (102 parents)
    Equity (Company account)
    800,100 GBP2021-12-31
    Officer
    2007-12-10 ~ 2011-09-30
    IIF 11 - Director → ME
  • 3
    IET STANDARDS LIMITED
    - now 07475762
    IET COMPLIANCE LIMITED - 2011-01-13
    Iet Legal Department, Savoy Place, London, United Kingdom
    Active Corporate (54 parents)
    Equity (Company account)
    100 GBP2023-12-31
    Officer
    2011-02-07 ~ 2011-09-30
    IIF 7 - Director → ME
  • 4
    INLAND WATERWAYS ASSOCIATION(THE)
    00612245
    Unit 16b Chiltern Court, Asheridge Road, Chesham, England
    Active Corporate (118 parents, 2 offsprings)
    Officer
    2024-08-19 ~ now
    IIF 2 - Director → ME
  • 5
    INLAND WATERWAYS ENTERPRISES LIMITED
    10382346 04305322
    Unit 16b, Chiltern Court, Asheridge Road, Chesham, England
    Active Corporate (7 parents)
    Equity (Company account)
    1 GBP2024-12-31
    Officer
    2024-08-19 ~ now
    IIF 1 - Director → ME
  • 6
    INSTITUTION OF RAILWAY SIGNAL ENGINEERS - now
    INSTITUTION OF RAILWAY SIGNAL ENGINEERS
    - 2026-01-15 00125685
    1 Birdcage Walk, London, England
    Active Corporate (107 parents)
    Officer
    1994-04-14 ~ 2006-06-01
    IIF 4 - Director → ME
    2006-07-01 ~ 2015-07-31
    IIF 12 - Secretary → ME
  • 7
    IRSE ENTERPRISES LIMITED
    05371364
    1 Birdcage Walk, London, England
    Active Corporate (36 parents, 1 offspring)
    Equity (Company account)
    241,676 GBP2020-12-31
    Officer
    2005-02-21 ~ 2015-07-31
    IIF 5 - Director → ME
    2006-07-01 ~ 2015-07-31
    IIF 13 - Secretary → ME
  • 8
    RICARDO RAIL LIMITED - now
    LLOYD'S REGISTER RAIL LIMITED
    - 2015-07-08 03226319 03193732
    LLOYD'S REGISTER MHA LTD.
    - 2004-01-28 03226319
    MHA SYSTEMS LIMITED
    - 2001-06-14 03226319
    MICHAEL HAMLYN ASSOCIATES LTD - 2000-01-06
    FENSHELF 62 LTD - 1996-10-24
    Shoreham Technical Centre, Shoreham By Sea, West Sussex
    Active Corporate (39 parents)
    Officer
    2001-05-01 ~ 2007-04-30
    IIF 6 - Director → ME
  • 9
    THE INSTITUTION OF ENGINEERING AND TECHNOLOGY BENEVOLENT FUND
    - now 00441284
    THE INSTITUTION OF ELECTRICAL ENGINEERS BENEVOLENT FUND - 2006-04-06
    INCORPORATED BENEVOLENT FUND OF INSTITUTION OF ELECTRICAL ENGINEERS LIMITED(THE) - 2001-06-11
    Unit 82a, James Carter Road, Mildenhall Industrial Estate, Bury St. Edmunds, Suffolk, England
    Active Corporate (159 parents)
    Officer
    2008-10-01 ~ 2014-09-30
    IIF 9 - Director → ME
  • 10
    WABTEC TRANSPORTATION SYSTEMS LIMITED - now
    GE TRANSPORTATION SYSTEMS LTD - 2020-02-20
    GE HARRIS HARMON RAILWAY TECHNOLOGY LTD
    - 2001-08-02 01340785
    VAUGHAN HARMON SYSTEMS LIMITED
    - 2000-12-19 01340785
    VAUGHAN SYSTEMS LIMITED
    - 1996-07-24 01340785
    VAUGHAN SYSTEMS AND PROGRAMMING LIMITED - 1989-04-27
    3rd Floor, 1 Ashley Road, Altrincham, Cheshire
    Active Corporate (39 parents, 1 offspring)
    Officer
    1996-07-01 ~ 2001-05-11
    IIF 8 - Director → ME
  • 11
    WATERWAY RECOVERY GROUP LIMITED
    04982899
    16b Chiltern Court Ashridge Road Industrial Estate, Asheridge Road, Chesham, England
    Active Corporate (11 parents)
    Equity (Company account)
    1 GBP2024-12-31
    Officer
    2024-08-19 ~ now
    IIF 3 - Director → ME

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