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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

Blackwell, Mark Byron

    Related profiles found in government register
  • Blackwell, Mark Byron

    Registered addresses and corresponding companies

    • Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England

      IIF 1

    • 22, Charterhouse Square, London, EC1M 6DX, England

      IIF 2

    • 73, Eastcombe Avenue, London, SE7 7LL

      IIF 3

    • 69, Thames Side, Staines-upon-thames, TW18 2HF, England

      IIF 4

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA

      IIF 5

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA, United Kingdom

      IIF 6

    • Minster House, 126a High Street, Whitton, Twickenham, Middlesex, TW2 7LL

      IIF 7

    • Minster House, 126a High Street, Whitton, Twickenham, Middlesex, TW2 7LL, United Kingdom

      IIF 8 IIF 9
  • Blackwell, Mark Byron
    British

    Registered addresses and corresponding companies
  • Blackwell, Mark Byron
    British accountant

    Registered addresses and corresponding companies

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA

      IIF 22
  • Blackwell, Mark Byron
    British consultant

    Registered addresses and corresponding companies

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA

      IIF 23
  • Blackwell, Mark Byron
    British financial consultant

    Registered addresses and corresponding companies

    • Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England

      IIF 24

    • 1 Wolsey Road, East Molesey, Surrey, KT8 9EL

      IIF 25

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA

      IIF 26 IIF 27
  • Blackwell, Mark Byron
    British financial controller

    Registered addresses and corresponding companies

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA

      IIF 28
  • Blackwell, Mark Byron
    British born in June 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England

      IIF 29
  • Blackwell, Mark Byron
    British accountant born in June 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England

      IIF 30

    • 73, Eastcombe Avenue, London, SE7 7LL

      IIF 31

    • 9, Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA, United Kingdom

      IIF 32

    • Minster House, 126a High St, Whitton, Twickenham, Middlesex, TW2 7LL

      IIF 33
  • Blackwell, Mark Byron
    British consultant born in June 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • Ferneberga House, Alexandra Road, Farnborough, GU14 6DQ, England

      IIF 34

    • Minster House, 126a, High Street, Whitton, Twickenham, Middlesex, TW2 7LL, United Kingdom

      IIF 35
  • Blackwell, Mark Byron
    British financial consultant born in June 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 5 Butt Furlong, Fladbury, Pershore, Worcestershire, WR10 2QZ, United Kingdom

      IIF 36 IIF 37

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA

      IIF 38 IIF 39
  • Blackwell, Mark Byron
    British financial controller born in June 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 9 Jubilee Avenue, Whitton, Twickenham, Middlesex, TW2 6JA

      IIF 40
  • Mr Mark Byron Blackwell
    British born in June 1962

    Resident in United Kingdom

    Registered addresses and corresponding companies
child relation
Offspring entities and appointments
Active 18
  • 1
    Minster House, 126a High Street, Whitton, Twickenham, Middlesex
    Dissolved Corporate (2 parents)
    Officer
    2007-03-21 ~ dissolved
    IIF 17 - Secretary → ME
  • 2
    Ferneberga House, Alexandra Road, Farnborough, England
    Active Corporate (3 parents)
    Equity (Company account)
    101,849 GBP2024-08-31
    Officer
    2004-08-17 ~ now
    IIF 10 - Secretary → ME
  • 3
    60 Kelmscott Road, London
    Dissolved Corporate (2 parents)
    Officer
    2006-04-30 ~ dissolved
    IIF 26 - Secretary → ME
  • 4
    Minster House 126a High Street, Whitton, Twickenham, Middlesex
    Dissolved Corporate (3 parents)
    Officer
    2011-03-03 ~ dissolved
    IIF 8 - Secretary → ME
  • 5
    Minster House Mhr Consultancy Services, 126a High Street Whitton, Twickenham, Middlesex
    Dissolved Corporate (3 parents)
    Officer
    2003-10-07 ~ dissolved
    IIF 23 - Secretary → ME
  • 6
    69 Thames Side, Staines-upon-thames, England
    Active Corporate (2 parents)
    Equity (Company account)
    17,812 GBP2024-05-31
    Officer
    2013-01-22 ~ now
    IIF 4 - Secretary → ME
  • 7
    Minster House 126a High Street, Whitton, Twickenham, Middlesex
    Dissolved Corporate (2 parents)
    Officer
    2009-12-12 ~ dissolved
    IIF 7 - Secretary → ME
  • 8
    D P SALISBURY LTD - 2009-01-06
    Minster House, 126a High Street, Whitton, Twickenham, Middlesex
    Dissolved Corporate (3 parents)
    Officer
    2008-05-15 ~ dissolved
    IIF 21 - Secretary → ME
  • 9
    Minster House, 126a High Street, Whitton, Twickenham, Middlesex, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    2008-12-16 ~ dissolved
    IIF 35 - Director → ME
    2008-12-16 ~ dissolved
    IIF 20 - Secretary → ME
  • 10
    Minster House, 126a High Street Whitton, Twickenham, Middlesex
    Dissolved Corporate (3 parents)
    Officer
    2006-06-01 ~ dissolved
    IIF 22 - Secretary → ME
  • 11
    SOCIAL VENTURE PARTNERS LONDON - 2021-11-15
    Ferneberga House, Alexandra Road, Farnborough, England
    Dissolved Corporate (6 parents)
    Person with significant control
    2016-07-01 ~ dissolved
    IIF 41 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 41 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 12
    Ferneberga House, Alexandra Road, Farnborough, England
    Active Corporate (1 parent, 1 offspring)
    Equity (Company account)
    14,328 GBP2025-03-31
    Officer
    2009-01-05 ~ now
    IIF 29 - Director → ME
    Person with significant control
    2016-04-10 ~ now
    IIF 43 - Ownership of shares – 75% or more → OE
    IIF 43 - Ownership of voting rights - 75% or more → OE
  • 13
    Ferneberga House, Alexandra Road, Farnborough, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    3,487 GBP2021-06-30
    Officer
    2007-06-19 ~ dissolved
    IIF 34 - Director → ME
    2007-06-19 ~ dissolved
    IIF 12 - Secretary → ME
    Person with significant control
    2016-07-10 ~ dissolved
    IIF 42 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 42 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 14
    Ferneberga House, Alexandra Road, Farnborough, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    1,627 GBP2021-09-30
    Officer
    2008-09-30 ~ dissolved
    IIF 11 - Secretary → ME
  • 15
    GREAT BRITISH TOURIST GUIDES LTD - 2020-10-20
    STOWAWAY BOOKS LTD - 2009-02-09
    Ferneberga House, Alexandra Road, Farnborough, England
    Active Corporate (2 parents)
    Equity (Company account)
    -161,798 GBP2025-02-28
    Officer
    2003-09-23 ~ now
    IIF 24 - Secretary → ME
  • 16
    Ferneberga House, Alexandra Road, Farnborough, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    -4,880 GBP2024-07-31
    Officer
    2017-07-17 ~ dissolved
    IIF 30 - Director → ME
  • 17
    1 Wolsey Road, East Molesey, Surrey
    Active Corporate (14 parents)
    Officer
    2007-04-01 ~ now
    IIF 25 - Secretary → ME
  • 18
    Minster House 126a High Street, Whitton, Twickenham, Middlesex
    Dissolved Corporate (2 parents)
    Officer
    2011-01-18 ~ dissolved
    IIF 9 - Secretary → ME
Ceased 18
  • 1
    1 More London Place, London
    Dissolved Corporate (2 parents)
    Officer
    2001-05-18 ~ 2002-02-06
    IIF 14 - Secretary → ME
  • 2
    DANA COMMERCIAL CREDIT LIMITED - 1998-12-04
    SHELFCO (NO. 251) LIMITED - 1988-09-22
    Meridian Trinity Square 23-59 Staines Road, Hounslow, Middlesex
    Dissolved Corporate (4 parents)
    Officer
    2001-02-07 ~ 2002-02-06
    IIF 19 - Secretary → ME
  • 3
    DANA CREDIT LIMITED - 1998-12-04
    POSIDATA LIMITED - 1995-12-08
    Meridian, Trinity Square, 23-59 Staines Road, Hounslow, Middlesex
    Dissolved Corporate (3 parents)
    Officer
    2001-02-07 ~ 2002-02-06
    IIF 16 - Secretary → ME
  • 4
    9 Montague Road, Hounslow, Middlesex
    Active Corporate (4 parents)
    Officer
    2004-07-14 ~ 2005-11-28
    IIF 39 - Director → ME
  • 5
    Hounslow Youth Centre, Kingsley Road, Hounslow, Middlesex
    Active Corporate (4 parents)
    Net Assets/Liabilities (Company account)
    8,665 GBP2024-03-31
    Officer
    2007-03-01 ~ 2012-11-29
    IIF 38 - Director → ME
  • 6
    Lock 24 Room 26 Station Approach, Shepperton, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    -177,139 GBP2024-03-31
    Officer
    2004-09-09 ~ 2022-03-22
    IIF 13 - Secretary → ME
  • 7
    SOCIAL VENTURE PARTNERS LONDON - 2021-11-15
    Ferneberga House, Alexandra Road, Farnborough, England
    Dissolved Corporate (6 parents)
    Officer
    2015-05-01 ~ 2018-10-25
    IIF 32 - Director → ME
  • 8
    MY FINANCE DEPARTMENT LIMITED - 2018-08-16
    PURPLE SQUIRREL OUTSOURCING LIMITED - 2017-04-24
    TARGET MARKET RICHMOND LIMITED - 2014-04-09
    7 Wordsworth Road, Hampton, Middlesex
    Dissolved Corporate (1 parent)
    Equity (Company account)
    66 GBP2021-03-31
    Officer
    2007-09-21 ~ 2008-12-03
    IIF 18 - Secretary → ME
  • 9
    Ferneberga House, Alexandra Road, Farnborough, England
    Active Corporate (1 parent, 1 offspring)
    Equity (Company account)
    14,328 GBP2025-03-31
    Officer
    2009-01-05 ~ 2020-06-04
    IIF 15 - Secretary → ME
  • 10
    THE CITY OF LONDON MIGRAINE CLINIC - 2012-03-21
    999 Medical Centre 999 Finchley Road, London, England
    Active Corporate (7 parents)
    Officer
    2009-07-09 ~ 2012-02-28
    IIF 5 - Secretary → ME
    2012-11-30 ~ 2014-09-04
    IIF 2 - Secretary → ME
  • 11
    PILOT LIGHT - 1997-03-20
    5th Floor 14 Bonhill Street, London, England
    Active Corporate (15 parents)
    Officer
    2008-10-29 ~ 2016-01-21
    IIF 27 - Secretary → ME
  • 12
    P TO M LIMITED - 2004-08-26
    TRUSHELFCO (NO. 1658) LIMITED - 1991-06-28
    3rd Floor 86-90 Paul Street, London, England
    Active Corporate (12 parents)
    Net Assets/Liabilities (Company account)
    452,900 GBP2024-06-30
    Officer
    2023-04-25 ~ 2024-07-08
    IIF 1 - Secretary → ME
  • 13
    17 Vanbrugh Park, London, England
    Dissolved Corporate (1 parent)
    Total Assets Less Current Liabilities (Company account)
    -100 GBP2015-12-31
    Officer
    2012-03-13 ~ 2014-10-01
    IIF 3 - Secretary → ME
  • 14
    17 Vanbrugh Park, London, England
    Active Corporate (5 parents)
    Equity (Company account)
    10,812 GBP2024-09-30
    Officer
    2012-11-01 ~ 2013-12-01
    IIF 31 - Director → ME
  • 15
    399 High Street, Brentford, Middlesex
    Active Corporate (10 parents, 1 offspring)
    Net Assets/Liabilities (Company account)
    1,580,082 GBP2021-03-31
    Officer
    2020-01-11 ~ 2022-03-18
    IIF 36 - Director → ME
  • 16
    399 High Street, Brentford, Middlesex
    Active Corporate (11 parents, 1 offspring)
    Equity (Company account)
    2 GBP2024-03-31
    Officer
    2020-01-11 ~ 2022-03-18
    IIF 37 - Director → ME
  • 17
    12b Parc House Cowleaze Road, Kingston Upon Thames, Surrey, England
    Active Corporate (4 parents)
    Equity (Company account)
    61,849 GBP2024-07-31
    Officer
    2014-07-31 ~ 2014-07-31
    IIF 33 - Director → ME
    2014-07-31 ~ 2019-12-09
    IIF 6 - Secretary → ME
  • 18
    VICI LABORATORIES LTD - 2014-07-30
    Oak Lodge Lee Chapel Lane, Langdon Hills, Basildon, Essex, England
    Active Corporate (1 parent)
    Equity (Company account)
    0 GBP2024-08-31
    Officer
    2002-11-11 ~ 2003-07-31
    IIF 40 - Director → ME
    2002-10-03 ~ 2003-07-31
    IIF 28 - Secretary → ME

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Contains public sector information retrieved at 12 November 2025 and licensed under the Open Government Licence v3.0.