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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

Castell, Stephen Peter, Doctor

    Related profiles found in government register
  • Castell, Stephen Peter, Doctor
    British business consultant born in August 1946

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 20 Grange Road, Wickham Bishops, Witham, Essex, CM8 3LT

      IIF 1
  • Castell, Stephen Peter, Doctor
    British director/consultant born in August 1946

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 20 Grange Road, Wickham Bishops, Witham, Essex, CM8 3LT

      IIF 2
  • Castell, Stephen Peter, Doctor
    British management consultant born in August 1946

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 20 Grange Road, Wickham Bishops, Witham, Essex, CM8 3LT

      IIF 3 IIF 4
  • Dr Stephen Peter Castell
    British born in August 1946

    Resident in England

    Registered addresses and corresponding companies
    • 20 Grange Road, Wickham Bishops, Witham, Essex, CM8 3LT, United Kingdom

      IIF 5 IIF 6 IIF 7
child relation
Offspring entities and appointments 4
  • 1
    BUSINESS SWITCHBOARD LIMITED
    01668181
    Beckwith Barn Warren Estate, Lordship Road, Chelmsford, Essex, United Kingdom
    Dissolved Corporate (3 parents)
    Equity (Company account)
    2 GBP2022-10-31
    Officer
    ~ dissolved
    IIF 3 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 7 - Has significant influence or control OE
  • 2
    CABLE AND SATELLITE TELECOMMUNICATIONS LIMITED
    01668623
    Beckwith Barn Warren Estate, Lordship Road, Chelmsford, Essex, United Kingdom
    Dissolved Corporate (3 parents)
    Equity (Company account)
    2 GBP2022-10-31
    Officer
    ~ dissolved
    IIF 4 - Director → ME
    Person with significant control
    2016-04-06 ~ dissolved
    IIF 6 - Has significant influence or control OE
  • 3
    CASTELL COMPUTER AND SYSTEMS TELECOMMUNICATIONS LIMITED
    01318049
    Beckwith Barn Warren Estate, Lordship Road, Chelmsford, Essex, United Kingdom
    Active Corporate (3 parents, 1 offspring)
    Equity (Company account)
    1,513,460 GBP2023-10-31
    Officer
    ~ 2025-04-01
    IIF 2 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 5 - Ownership of shares – 75% or more OE
    IIF 5 - Ownership of voting rights - 75% or more OE
    IIF 5 - Right to appoint or remove directors OE
  • 4
    CHANNEL AZUR DIGITAL TELEVISION PLC
    - now 02923807
    CHANNEL 5 DIGITAL TELEVISION PLC
    - 2000-08-16 02923807
    Beckwith Barn Warren Estate, Lordship Road, Chelmsford, Essex, United Kingdom
    Active Corporate (5 parents)
    Equity (Company account)
    100 GBP2023-10-27
    Officer
    1994-04-28 ~ now
    IIF 1 - Director → ME

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