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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

Dr Colin Richard Smithers

    Related profiles found in government register
  • Dr Colin Richard Smithers
    British born in February 1959

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Plextek Building, London Road, Great Chesterford, Essex, CB10 1NY, United Kingdom

      IIF 1

    • Plextek Ltd, London Road, Saffron Walden, CB10 1NY, United Kingdom

      IIF 2

    • The Plextek Building, London Road, Great Chesterford, Saffron Walden, Essex, CB10 1NY, United Kingdom

      IIF 3
  • Dr Colin Richard Smithers
    British born in February 1959

    Resident in England

    Registered addresses and corresponding companies

    • Plextek Building, London Road, Great Chesterford, Essex, CB10 1NY

      IIF 4

    • Oval Park, Hatfield Road, Langford, Maldon, Essex, CM9 6WG, England

      IIF 5

    • Iceni House, London Road, Great Chesterford, Saffron Walden, CB10 1NY, England

      IIF 6

    • Plextek Building, London Road, Great Chesterford, Saffron Walden, Essex, CB10 1NY, United Kingdom

      IIF 7

    • The Plextek Building, London Road, Great Chesterford, Saffron Walden, CB10 1NY, United Kingdom

      IIF 8 IIF 9
  • Smithers, Colin Richard, Dr
    British born in February 1959

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Plextek Building, London Road, Great Chesterford, Essex, CB10 1NY, United Kingdom

      IIF 10

    • The Plextek Building, London Road, Great Chesterford, Saffron Walden, Essex, CB10 1NY, United Kingdom

      IIF 11
  • Smithers, Colin Richard, Dr
    British director born in February 1959

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Plextek Ltd, London Road, Great Chesterford, Saffron Walden, CB10 1NY, United Kingdom

      IIF 12
  • Smithers, Colin Richard, Dr
    British born in February 1959

    Resident in England

    Registered addresses and corresponding companies

    • 10, Grange Park, Bishop's Stortford, Hertfordshire, CM23 2HX, England

      IIF 13

    • 10 Grange Park, Bishops Stortford, Hertfordshire, CM23 2HX

      IIF 14

    • Plextek Building, London Road, Great Chesterford, Essex, CB10 1NY, United Kingdom

      IIF 15

    • Iceni House, London Road, Great Chesterford, Saffron Walden, CB10 1NY, England

      IIF 16

    • Plextek Building, London Road, Great Chesterford, Saffron Walden, Essex, CB10 1NY, United Kingdom

      IIF 17

    • The Plextek Building, London Road, Great Chesterford, Saffron Walden, CB10 1NY, United Kingdom

      IIF 18 IIF 19
  • Smithers, Colin Richard, Dr
    British company director born in February 1959

    Resident in England

    Registered addresses and corresponding companies

    • Oval Park, Hatfield Road, Langford, Maldon, Essex, CM9 6WG, England

      IIF 20

    • Iceni House, London Road, Great Chesterford, Saffron Walden, CB10 1NY, England

      IIF 21

    • London Road, London Road, Great Chesterford, Saffron Walden, Essex, CB10 1NY, England

      IIF 22

    • Plextek Building, London Road, Great Chesterford, Saffron Walden, Essex, CB10 1NY

      IIF 23

    • The Plextek Building, London Road, Great Chesterford, Saffron Walden, CB10 1NY, United Kingdom

      IIF 24
  • Smithers, Colin Richard, Dr
    British director born in February 1959

    Resident in England

    Registered addresses and corresponding companies

    • 10 Grange Park, Bishops Stortford, Hertfordshire, CM23 2HX

      IIF 25 IIF 26
  • Smithers, Colin Richard, Dr
    British engineer born in February 1959

    Resident in England

    Registered addresses and corresponding companies

    • 10 Grange Park, Bishops Stortford, Hertfordshire, CM23 2HX

      IIF 27

    • Plextek Building, London Road, Great Chesterford, Essex, CB10 1NY, United Kingdom

      IIF 28
child relation
Offspring entities and appointments
Active 9
  • 1
    Iceni House London Road, Great Chesterford, Saffron Walden, England
    Active Corporate (4 parents)
    Officer
    2022-05-18 ~ now
    IIF 16 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 6 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 6 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 2
    CAMBRIDGE UNIVERSITY GLIDING TRUST LIMITED(THE) - 1996-10-04
    Gransden Lodge Airfield, Longstowe Road Little Gransden, Sandy, Bedfordshire
    Active Corporate (9 parents)
    Equity (Company account)
    339,235 GBP2024-09-30
    Officer
    2015-03-20 ~ now
    IIF 13 - Director → ME
  • 3
    RFI ROYALTIES LTD - 2020-03-04
    The Plextek Building, London Road, Great Chesterford, Saffron Walden, Essex, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    3 GBP2021-01-31
    Officer
    2020-01-31 ~ now
    IIF 11 - Director → ME
    Person with significant control
    2020-01-31 ~ now
    IIF 3 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 3 - Ownership of shares – More than 25% but not more than 50% → OE
  • 4
    Plextek Building, London Road, Great Chesterford, Essex, United Kingdom
    Dissolved Corporate (4 parents)
    Equity (Company account)
    -146,585 GBP2018-07-31
    Officer
    2016-03-22 ~ dissolved
    IIF 28 - Director → ME
  • 5
    Plextek Building, London Road, Great Chesterford, Essex, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    0.03 GBP2021-03-31
    Officer
    2020-04-06 ~ now
    IIF 10 - Director → ME
    Person with significant control
    2020-04-06 ~ now
    IIF 1 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 1 - Ownership of shares – More than 25% but not more than 50% → OE
  • 6
    The Plextek Building London Road, Great Chesterford, Saffron Walden, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    47,759 GBP2021-03-31
    Officer
    2015-10-20 ~ now
    IIF 19 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 9 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 9 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 7
    KELLMAN LIMITED - 1989-03-29
    The Plextek Building London Road, Great Chesterford, Saffron Walden, United Kingdom
    Active Corporate (4 parents, 1 offspring)
    Equity (Company account)
    2,623,330 GBP2021-03-31
    Officer
    ~ now
    IIF 17 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 7 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 8
    The Plextek Building London Road, Great Chesterford, Saffron Walden, United Kingdom
    Active Corporate (5 parents)
    Officer
    2015-10-19 ~ now
    IIF 18 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 8 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 8 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 9
    Plextek Building, London Road, Great Chesterford, Essex
    Active Corporate (5 parents)
    Equity (Company account)
    -515,532 GBP2021-03-31
    Officer
    2010-10-14 ~ now
    IIF 15 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 4 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 4 - Ownership of voting rights - More than 25% but not more than 50% → OE
Ceased 10
  • 1
    AFERIAN PLC - 2021-06-18
    AMINO TECHNOLOGIES PLC - 2021-06-18
    AMINO TECHNOLOGIES PLC - 2021-06-18
    MUSICGOLD PUBLIC LIMITED COMPANY - 2004-04-21
    Botanic House, 100 Hills Road, Cambridge, England
    Active Corporate (4 parents, 1 offspring)
    Officer
    2004-05-20 ~ 2016-02-29
    IIF 26 - Director → ME
  • 2
    NEWSTOCK LIMITED - 1998-07-15
    Botanic House, 100 Hills Road, Cambridge, England
    Active Corporate (2 parents)
    Officer
    2003-03-19 ~ 2005-02-23
    IIF 25 - Director → ME
  • 3
    AMINO COMMUNICATIONS LIMITED - 1998-07-15
    CREEDAL LIMITED - 1997-12-22
    Botanic House, 100 Hills Road, Cambridge, England
    Active Corporate (2 parents, 2 offsprings)
    Officer
    2002-03-19 ~ 2006-03-20
    IIF 14 - Director → ME
  • 4
    Iceni House London Road, Great Chesterford, Saffron Walden, England
    Active Corporate (4 parents)
    Officer
    2015-10-19 ~ 2019-07-18
    IIF 21 - Director → ME
  • 5
    EM21 LTD - 2021-07-12
    EM2020 LTD - 2019-09-05
    Unit 1, Sovereign Court 1, University Of Warwick Science Park, Sir William Lyons Road, Coventry, England
    Active Corporate (6 parents)
    Equity (Company account)
    3,692,118 GBP2024-12-31
    Officer
    2018-07-19 ~ 2020-06-17
    IIF 12 - Director → ME
    Person with significant control
    2018-07-19 ~ 2018-10-19
    IIF 2 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 2 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 6
    C/o Windsor House Station Court, Station Road, Great Shelford, Cambridge, United Kingdom
    Active Corporate (4 parents)
    Equity (Company account)
    -3,213,488 GBP2024-12-31
    Officer
    2008-05-09 ~ 2013-03-20
    IIF 27 - Director → ME
  • 7
    PLEXTEK RFI LIMITED - 2020-07-03
    Oval Park Hatfield Road, Langford, Maldon, Essex, England
    Active Corporate (5 parents)
    Officer
    2015-10-19 ~ 2020-03-03
    IIF 20 - Director → ME
    Person with significant control
    2016-04-06 ~ 2020-03-03
    IIF 5 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 5 - Ownership of shares – More than 25% but not more than 50% → OE
  • 8
    50 Liverpool Street, London, England
    Active Corporate (6 parents, 1 offspring)
    Equity (Company account)
    -15,051,938 GBP2023-12-31
    Officer
    2014-02-07 ~ 2014-02-07
    IIF 22 - Director → ME
  • 9
    Iconix 3 London Road, Pampisford, Cambridge, England
    Active Corporate (3 parents, 1 offspring)
    Officer
    2015-10-20 ~ 2015-12-21
    IIF 24 - Director → ME
  • 10
    Iconix 3 London Road, Pampisford, Cambridge, England
    Active Corporate (4 parents)
    Officer
    2005-07-15 ~ 2015-12-21
    IIF 23 - Director → ME

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