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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 John Stephen Hartas

    Related profiles found in government register
  • Dr John Stephen Hartas
    British born in February 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
  • Hartas, John Stephen, Dr
    British director born in February 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Dalmar House, Barras Lane Estate, Dalston, Carlisle, CA5 7NY, United Kingdom

      IIF 10
    • icon of address 5&6 Manor Court, Manor Garth, Scarborough, North Yorkshire, YO11 3TU, England

      IIF 11 IIF 12 IIF 13
    • icon of address 5&6, Manor Court, Manor Garth, Scarborough, North Yorkshire, YO11 3TU, United Kingdom

      IIF 16
    • icon of address 62/63, Westborough, Scarborough, North Yorkshire, YO11 1TS, United Kingdom

      IIF 17 IIF 18
    • icon of address 16 Elm Grove, Whitby, North Yorkshire, YO21 1JA, England

      IIF 19
  • Hartas, John Stephen, Dr
    British managing director born in February 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address Dalmar House, Barras Lane Estate, Dalston, Carlisle, CA5 7NY, United Kingdom

      IIF 20
    • icon of address 5&6 Manor Court, Manor Garth, Scarborough, North Yorkshire, YO11 3TU, England

      IIF 21 IIF 22 IIF 23
    • icon of address 62/63 Westborough, Scarborough, North Yorkshire, YO11 1TS, England

      IIF 27
    • icon of address Unit F16, The Ropery, Whitby, YO22 4ET, England

      IIF 28 IIF 29
  • Hartas, John Stephen, Dr
    born in February 1958

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • icon of address 6, Newton Street, Whitby, North Yorkshire, YO21 1QX, United Kingdom

      IIF 30
child relation
Offspring entities and appointments
Active 16
  • 1
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Active Corporate (2 parents)
    Equity (Company account)
    10,791 GBP2024-03-31
    Officer
    icon of calendar 2007-03-01 ~ now
    IIF 13 - Director → ME
    Person with significant control
    icon of calendar 2020-07-15 ~ now
    IIF 4 - Right to appoint or remove directorsOE
    IIF 4 - Ownership of voting rights - More than 50% but less than 75%OE
    IIF 4 - Ownership of shares – More than 50% but less than 75%OE
  • 2
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    5,222 GBP2024-05-31
    Officer
    icon of calendar 2023-05-08 ~ now
    IIF 24 - Director → ME
  • 3
    icon of address Unit F16 The Ropery, Whitby, England
    Active Corporate (3 parents)
    Officer
    icon of calendar 2024-02-09 ~ now
    IIF 28 - Director → ME
  • 4
    icon of address 30 Finsbury Square, London
    Dissolved Corporate (75 parents)
    Officer
    icon of calendar 2012-10-23 ~ dissolved
    IIF 30 - LLP Member → ME
  • 5
    icon of address 5&6 Manor Court, Manor Garth, Scarborough, North Yorkshire, United Kingdom
    Active Corporate (3 parents)
    Officer
    icon of calendar 2024-01-30 ~ now
    IIF 16 - Director → ME
  • 6
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Active Corporate (2 parents)
    Equity (Company account)
    -1,596 GBP2024-03-31
    Officer
    icon of calendar 2019-08-14 ~ now
    IIF 25 - Director → ME
    Person with significant control
    icon of calendar 2019-08-14 ~ 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
  • 7
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Active Corporate (1 parent, 1 offspring)
    Equity (Company account)
    90,133 GBP2024-03-31
    Officer
    icon of calendar 2013-08-23 ~ now
    IIF 11 - Director → ME
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    IIF 6 - Ownership of voting rights - 75% or moreOE
    IIF 6 - Ownership of shares – 75% or moreOE
  • 8
    icon of address 16 Elm Grove, Whitby, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    -85 GBP2022-03-31
    Officer
    icon of calendar 2021-11-26 ~ dissolved
    IIF 19 - Director → ME
    Person with significant control
    icon of calendar 2021-11-26 ~ dissolved
    IIF 9 - Ownership of voting rights - More than 25% but not more than 50%OE
    IIF 9 - Ownership of shares – More than 25% but not more than 50%OE
  • 9
    SYNTHESYS RESEARCH LIMITED - 2023-12-20
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Active Corporate (2 parents)
    Equity (Company account)
    -12,495 GBP2024-03-31
    Officer
    icon of calendar 2021-03-10 ~ now
    IIF 26 - Director → ME
    Person with significant control
    icon of calendar 2024-06-25 ~ now
    IIF 5 - Ownership of shares – More than 50% but less than 75%OE
    IIF 5 - Ownership of voting rights - More than 50% but less than 75%OE
    IIF 5 - Right to appoint or remove directorsOE
  • 10
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Active Corporate (2 parents)
    Equity (Company account)
    29,500 GBP2024-03-31
    Officer
    icon of calendar 2024-07-25 ~ now
    IIF 23 - Director → ME
    Person with significant control
    icon of calendar 2024-11-25 ~ now
    IIF 8 - Ownership of voting rights - 75% or moreOE
    IIF 8 - Ownership of shares – 75% or moreOE
  • 11
    icon of address Unit F16 The Ropery, Whitby, England
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2022-07-14 ~ dissolved
    IIF 29 - Director → ME
  • 12
    icon of address 62/63 Westborough, Scarborough, North Yorkshire, United Kingdom
    Dissolved Corporate (4 parents)
    Equity (Company account)
    100 GBP2019-05-31
    Officer
    icon of calendar 2018-05-22 ~ dissolved
    IIF 18 - Director → ME
  • 13
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Active Corporate (2 parents)
    Equity (Company account)
    88 GBP2024-03-31
    Officer
    icon of calendar 2021-12-22 ~ now
    IIF 22 - Director → ME
    Person with significant control
    icon of calendar 2024-11-25 ~ now
    IIF 2 - Ownership of voting rights - 75% or moreOE
    IIF 2 - Right to appoint or remove directorsOE
    IIF 2 - Ownership of shares – 75% or moreOE
  • 14
    RESOLUTION UAV SERVICES LIMITED - 2017-02-08
    icon of address 62/63 Westborough, Scarborough, North Yorkshire, United Kingdom
    Dissolved Corporate (2 parents)
    Equity (Company account)
    5,269 GBP2020-03-31
    Officer
    icon of calendar 2015-05-22 ~ dissolved
    IIF 17 - Director → ME
  • 15
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    2,023 GBP2021-03-31
    Officer
    icon of calendar 2017-03-14 ~ dissolved
    IIF 15 - Director → ME
  • 16
    SYNTHESYS SYSTEMS ENGINEERING LIMITED - 2019-07-27
    icon of address Ground Floor, Baird House, Seebeck Place, Knowlhill, Milton Keynes
    Liquidation Corporate (3 parents)
    Officer
    icon of calendar 2018-03-28 ~ now
    IIF 14 - Director → ME
Ceased 4
  • 1
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    5,222 GBP2024-05-31
    Person with significant control
    icon of calendar 2024-11-25 ~ 2025-05-01
    IIF 7 - Ownership of voting rights - 75% or more OE
    IIF 7 - Ownership of shares – 75% or more OE
    IIF 7 - Right to appoint or remove directors OE
  • 2
    icon of address 5&6 Manor Court Manor Garth, Scarborough, North Yorkshire, England
    Active Corporate (2 parents)
    Equity (Company account)
    29,500 GBP2024-03-31
    Officer
    icon of calendar 2023-12-15 ~ 2024-05-24
    IIF 21 - Director → ME
    icon of calendar 2021-03-19 ~ 2021-05-01
    IIF 27 - Director → ME
  • 3
    SYNTHESYS SYSTEMS DEFENCE LIMITED - 2018-05-16
    icon of address Dalmar House Barras Lane Estate, Dalston, Carlisle, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    236,963 GBP2024-12-31
    Officer
    icon of calendar 2024-04-08 ~ 2025-03-05
    IIF 10 - Director → ME
    icon of calendar 2018-05-08 ~ 2024-03-05
    IIF 12 - Director → ME
  • 4
    SYNTHESYS SYSTEMS ENGINEERS LIMITED - 2025-03-05
    ESTAGOLD COMPUTERS LIMITED - 1988-04-06
    icon of address Dalmar House Barras Lane Estate, Dalston, Carlisle, United Kingdom
    Active Corporate (3 parents, 5 offsprings)
    Equity (Company account)
    -323,615 GBP2024-12-31
    Officer
    icon of calendar ~ 2025-03-05
    IIF 20 - Director → ME
    Person with significant control
    icon of calendar 2016-04-06 ~ 2024-11-22
    IIF 1 - Ownership of shares – 75% or more OE

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Contains public sector information retrieved at 26 August 2025 and licensed under the Open Government Licence v3.0.