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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.

Jump to: Offsprings
Parent entities and officers
Inapplicable
parent relation
Individuals in focus

Roulston, John Francis, Professor

    Related profiles found in government register
  • Roulston, John Francis, Professor
    British born in June 1948

    Resident in Scotland

    Registered addresses and corresponding companies
  • Roulston, John Francis, Professor
    British

    Registered addresses and corresponding companies
    • Dun Dornaigh, 35 Boswall Road, Edinburgh, Midlothian, EH5 3RP

      IIF 17
  • Professor John Francis Roulston
    British born in June 1948

    Resident in Scotland

    Registered addresses and corresponding companies
    • Dun Dornaigh, 35 Boswall Road, Edinburgh, EH5 3RP, Scotland

      IIF 18
  • Roulston, John Francis
    British born in June 1948

    Registered addresses and corresponding companies
    • 16 Ascham Hall, Lady Park Avenue, Bingley, West Yorkshire, BD16 4UB

      IIF 19
child relation
Offspring entities and appointments 17
  • 1
    ANALYTICS ENGINES LIMITED
    - now NI070848
    CAPNADSP LIMITED - 2012-08-29
    1 Chlorine Gardens, Belfast
    Active Corporate (20 parents)
    Officer
    2013-12-17 ~ 2022-12-07
    IIF 1 - Director → ME
  • 2
    BAE SYSTEMS AEROSPACE SYSTEMS LIMITED - now
    MARCONI AEROSPACE SYSTEMS LIMITED - 2000-02-23
    GEC-MARCONI AEROSPACE SYSTEMS LIMITED
    - 1998-11-11 02519610
    GEC FERRANTI (EDINBURGH) LIMITED - 1995-08-11
    POWERBROAD LIMITED - 1991-02-12
    Warwick House Po Box 87, Farnborough Aerospace Centre, Farnborough, Hampshire
    Dissolved Corporate (16 parents)
    Officer
    1996-10-23 ~ 1998-03-30
    IIF 15 - Director → ME
  • 3
    BAE SYSTEMS AVIONICS (MANAGEMENT) LIMITED
    - now 00184068
    MARCONI AVIONICS LIMITED
    - 2000-02-23 00184068 00144140... (more)
    GEC-MARCONI AVIONICS LIMITED
    - 1998-11-11 00184068
    GEC AVIONICS LIMITED
    - 1993-02-05 00184068 00144140
    G E C ELECTRICAL COMPONENTS LIMITED - 1987-09-18
    Warwick House Po Box 87, Farnborough Aerospace Centre, Farnborough, Hampshire
    Dissolved Corporate (16 parents)
    Officer
    1993-01-14 ~ 2000-08-11
    IIF 6 - Director → ME
  • 4
    DATA CONVERSION SYSTEMS LIMITED
    - now 02072115
    SIGNAL CONVERSION SYSTEMS LIMITED
    - 1987-04-03 02072115
    Unit 1, Buckingway Business Park, Anderson Road Swavesey, Cambridge, Cambs
    Active Corporate (22 parents)
    Officer
    (before 1992-07-01) ~ 2009-06-03
    IIF 11 - Director → ME
  • 5
    ELECTRONICS SCOTLAND LIMITED
    SC203101
    Abacus 460 Ltd, 7 Burnbrae Road, Shotts, Lanarkshire, Scotland
    Dissolved Corporate (31 parents)
    Officer
    2002-11-06 ~ dissolved
    IIF 14 - Director → ME
  • 6
    FILTRONIC BROADBAND LIMITED
    - now 03398105
    FILTRONIC CABLE LIMITED - 2000-05-10
    KENTLEIGH LIMITED - 1997-11-05
    1 Rosalind Franklin Way, Netpark, Sedgefield, County Durham, England
    Active Corporate (29 parents)
    Officer
    2005-03-25 ~ 2006-01-29
    IIF 13 - Director → ME
  • 7
    FILTRONIC COMTEK (UK) LIMITED
    - now 02700306
    FILTRONIC COMTEK LIMITED - 1994-07-13
    TRENTBELL LIMITED - 1992-05-12
    Flitronic House 3 Airport West, Yeadon, Leeds, West Yorkshire
    Dissolved Corporate (26 parents)
    Officer
    2005-03-25 ~ 2006-01-29
    IIF 12 - Director → ME
  • 8
    FILTRONIC PLC
    - now 02891064 01659830
    FILTRONIC COMTEK P.L.C. - 1998-03-02
    YPCS 28 P.L.C. - 1994-07-13
    1 Rosalind Franklin Way, Netpark, Sedgefield, County Durham, England
    Active Corporate (40 parents, 3 offsprings)
    Officer
    2004-09-06 ~ 2006-01-29
    IIF 10 - Director → ME
  • 9
    POWERWAVE OVERSEAS HOLDINGS LIMITED - now
    FILTRONIC (OVERSEAS HOLDINGS) LIMITED
    - 2006-11-22 05298744 03042647... (more)
    BROOMCO (3642) LIMITED
    - 2005-05-24 05298744 05298684... (more)
    Julian Arnold, John Davis & Co., 172 Gloucester Road, Bristol
    Dissolved Corporate (12 parents)
    Officer
    2005-01-31 ~ 2006-01-29
    IIF 19 - Director → ME
  • 10
    PULSE LK - now
    LK PRODUCTS (OVERSEAS HOLDINGS)
    - 2006-10-03 03042647
    FILTRONIC (OVERSEAS HOLDINGS)
    - 2005-05-24 03042647 05298744
    FILTRONIC COMTEK (OVERSEAS HOLDINGS) LIMITED - 2000-05-23
    STOCKBELT LIMITED - 1995-05-24
    Harbour Court, Compass Road North Harbour, Portsmouth, Hampshire
    Dissolved Corporate (24 parents)
    Officer
    2005-03-25 ~ 2005-09-08
    IIF 9 - Director → ME
  • 11
    RFMD (UK) LIMITED - now
    Insolvency (Case 1) Members voluntary liquidation
    Commencement of winding up on 2020-03-17
    Dissolved on 2021-10-02
    FILTRONIC COMPOUND SEMICONDUCTORS LIMITED
    - 2008-03-06 02927965
    FILTRONIC COMTEK RESEARCH LIMITED - 1999-09-17
    FILTRONIC RESEARCH LIMITED - 1994-08-18
    WOLFER LIMITED - 1994-07-27
    Qorvo, 3 Waterside Drive, Arlington Business Park, Theale, Reading, England
    Dissolved Corporate (29 parents)
    Officer
    2005-03-25 ~ 2006-01-29
    IIF 16 - Director → ME
  • 12
    SCIMUS SOLUTIONS LTD
    SC296886
    35 Boswall Road, Edinburgh
    Active Corporate (6 parents)
    Officer
    2006-02-17 ~ now
    IIF 5 - Director → ME
    2006-02-17 ~ now
    IIF 17 - Secretary → ME
    Person with significant control
    2017-02-09 ~ now
    IIF 18 - Ownership of shares – More than 25% but not more than 50% OE
  • 13
    SCOTTISH ENTERPRISE EDINBURGH AND LOTHIAN
    - now SC124701
    LOTHIAN AND EDINBURGH ENTERPRISE LIMITED - 2000-04-25
    Atrium Court, 50 Waterloo Street, Glasgow
    Active Corporate (68 parents, 2 offsprings)
    Officer
    2004-09-01 ~ 2008-03-31
    IIF 8 - Director → ME
  • 14
    TELEDYNE DEFENCE LIMITED - now
    Insolvency (Case 1) Members voluntary liquidation
    Commencement of winding up on 2015-02-18
    Dissolved on 2016-02-18
    FILTRONIC DEFENCE LIMITED - 2008-08-20
    FILTRONIC COMPONENTS LIMITED
    - 2007-07-04 01659830 06415527
    FILTRONIC LIMITED - 1992-06-01
    Airedale House Royal London, Industrial Estate Acorn Park, Charlestown Shipley, West Yorkshire
    Dissolved Corporate (31 parents)
    Officer
    2005-03-25 ~ 2006-01-29
    IIF 4 - Director → ME
  • 15
    TELEDYNE PROPERTIES LIMITED
    03183532
    Airedale House Royal London, Industrial Estate Acorn Park, Charlestown Shipley, West Yorkshire
    Dissolved Corporate (17 parents)
    Officer
    2005-03-25 ~ 2006-01-29
    IIF 3 - Director → ME
  • 16
    TEXTRON SYSTEMS ELECTRONIC SYSTEMS UK (HOLDINGS) LIMITED - now
    ESL DEFENCE (HOLDINGS) LIMITED
    - 2015-11-30 04295616
    BLAKEDEW 331 LIMITED - 2001-11-19
    23 Bedford Row, London, England
    Active Corporate (26 parents, 1 offspring)
    Officer
    2001-11-30 ~ 2005-04-01
    IIF 2 - Director → ME
  • 17
    TEXTRON SYSTEMS ELECTRONIC SYSTEMS UK LIMITED - now
    ESL DEFENCE LIMITED
    - 2015-11-30 02642013
    ELETTRONICA SYSTEMS LIMITED
    - 2001-12-12 02642013
    23 Bedford Row, London, England
    Active Corporate (30 parents)
    Officer
    2001-12-03 ~ 2005-04-01
    IIF 7 - Director → ME

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Contains public sector information retrieved at 14 July 2026 and licensed under the Open Government Licence v3.0.