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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

Sieburgh Sjoerdsma, Taco Andries

    Related profiles found in government register
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 1, Prince Of Wales Road, Flat 55, London, NW5 3LW, England

      IIF 1

    • 85, Great Portland Street, First Floor, London, W1W 7LT, United Kingdom

      IIF 2 IIF 3
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch cfo born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 69, Belsize Park Gardens, Flat 1, London, NW3 4JP, England

      IIF 4

    • 96, Great Titchfield Street, London, W1W 6SQ, England

      IIF 5 IIF 6 IIF 7

    • 96, Great Titchfield Street, London, W1W 6SQ, United Kingdom

      IIF 8
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch research born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 1, Prince Of Wales Road, Flat 55, London, NW5 3LW, England

      IIF 9
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch born in March 1964

    Resident in England

    Registered addresses and corresponding companies

    • 1, Prince Of Wales Road, Flat 55, London, NW5 3LW, England

      IIF 10
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch cfo born in March 1964

    Resident in England

    Registered addresses and corresponding companies

    • 9, Appold Street, London, EC2A 2AP, England

      IIF 11
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch director born in March 1964

    Resident in England

    Registered addresses and corresponding companies

    • Flat 55, 1 Prince Of Wales Road, London, NW5 3LW, England

      IIF 12
  • Sieburgh Sjoerdsma, Taco Andries
    Netherlands director of research born in March 1964

    Registered addresses and corresponding companies

    • 19 Carlingford Road, London, NW3 1RY

      IIF 13
  • Sieburgh Sjoerdsma, Taco Andries
    born in March 1964

    Resident in England

    Registered addresses and corresponding companies

    • 4, Bourlet Close, London, W1W 7BJ

      IIF 14
  • Sieburgh Sjoerdsma, Taco Andries

    Registered addresses and corresponding companies

    • 85, Great Portland Street, First Floor, London, W1W 7LT, United Kingdom

      IIF 15

    • 9, Appold Street, London, EC2A 2AP, England

      IIF 16
  • Mr Taco Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 1, Prince Of Wales Road, Flat 55, London, NW5 3LW, England

      IIF 17
  • Taco Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 69, Belsize Park Gardens, Flat 1, London, NW3 4JP, England

      IIF 18
  • Mr Taco Andries Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • 20, Victoria Street, London, SW1H 0NF, United Kingdom

      IIF 19

    • 85, Great Portland Street, First Floor, London, W1W 7LT, United Kingdom

      IIF 20
  • Sieburgh Sjoerdsma, Taco

    Registered addresses and corresponding companies

    • 35, Hill View Gardens, London, NW9 0TE, England

      IIF 21

    • 96, Great Titchfield Street, London, W1W 6SQ, England

      IIF 22
  • Taco Andries Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in England

    Registered addresses and corresponding companies

    • Flat 55, 1 Prince Of Wales Road, London, NW5 3LW, England

      IIF 23
child relation
Offspring entities and appointments
Active 8
  • 1
    96 Great Titchfield Street, London, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    2017-06-07 ~ dissolved
    IIF 8 - Director → ME
  • 2
    1 Prince Of Wales Road, Flat 55, London, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    100 GBP2019-02-28
    Officer
    2015-02-17 ~ dissolved
    IIF 9 - Director → ME
  • 3
    85 Great Portland Street, First Floor, London, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    513,254 GBP2024-12-31
    Officer
    2013-09-05 ~ now
    IIF 2 - Director → ME
    2020-04-01 ~ now
    IIF 15 - Secretary → ME
  • 4
    85 Great Portland Street, First Floor, London, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    270,525 GBP2025-03-31
    Officer
    2018-10-22 ~ now
    IIF 3 - Director → ME
    Person with significant control
    2018-10-22 ~ now
    IIF 20 - Ownership of voting rights - 75% or more → OE
    IIF 20 - Right to appoint or remove directors → OE
    IIF 20 - Ownership of shares – 75% or more → OE
  • 5
    69 Belsize Park Gardens, Flat 1, London, England
    Dissolved Corporate (1 parent)
    Officer
    2017-10-06 ~ dissolved
    IIF 4 - Director → ME
    Person with significant control
    2017-10-06 ~ dissolved
    IIF 18 - Ownership of shares – 75% or more → OE
    IIF 18 - Ownership of voting rights - 75% or more → OE
    IIF 18 - Right to appoint or remove directors → OE
  • 6
    STURGEON CAPITAL LLP - 2011-08-17
    4 Bourlet Close, London
    Dissolved Corporate (2 parents)
    Officer
    2009-06-05 ~ dissolved
    IIF 14 - LLP Designated Member → ME
  • 7
    15 Half Moon Street, London, England
    Active Corporate (5 parents, 1 offspring)
    Equity (Company account)
    104,955 GBP2023-12-31
    Officer
    2023-09-12 ~ now
    IIF 10 - Director → ME
  • 8
    Flat 55 1 Prince Of Wales Road, London, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    66 GBP2021-10-31
    Officer
    2020-10-26 ~ dissolved
    IIF 12 - Director → ME
Ceased 9
  • 1
    CONTINUO LTD - 2017-08-30
    STURGEON SECURITIES LTD - 2015-09-15
    9 Kingsway, London, England
    Active Corporate (2 parents)
    Total liabilities (Company account)
    5,100,338 GBP2024-12-31
    Officer
    2013-04-08 ~ 2018-08-01
    IIF 6 - Director → ME
  • 2
    Plantworks, 1a Britannia Street, London, England
    Active Corporate (2 parents)
    Equity (Company account)
    -707,936 GBP2024-03-31
    Officer
    2015-11-05 ~ 2018-07-24
    IIF 7 - Director → ME
  • 3
    VIVADA LIMITED - 2000-01-20
    Geoffrey Martin & Co 1 Westferry Circus, Canary Wharf, London, England
    Dissolved Corporate (1 parent)
    Officer
    2003-12-01 ~ 2007-03-13
    IIF 13 - Director → ME
  • 4
    9 Appold Street, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    370,687 GBP2023-12-31
    Officer
    2022-04-22 ~ 2023-11-15
    IIF 11 - Director → ME
    2021-08-09 ~ 2023-11-15
    IIF 16 - Secretary → ME
  • 5
    85 Great Portland Street, First Floor, London, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    513,254 GBP2024-12-31
    Person with significant control
    2016-04-06 ~ 2019-09-11
    IIF 19 - Has significant influence or control → OE
  • 6
    379b Acton Lane, London, England
    Active Corporate (2 parents)
    Equity (Company account)
    121,770 USD2024-05-31
    Officer
    2014-06-18 ~ 2018-12-10
    IIF 22 - Secretary → ME
  • 7
    STURGEON CAPITAL GFM LTD - 2011-08-17
    Plantworks 1a Britannia Street, London, England
    Active Corporate (4 parents, 4 offsprings)
    Profit/Loss (Company account)
    -16,519 GBP2023-04-01 ~ 2024-03-31
    Officer
    2010-10-27 ~ 2018-07-24
    IIF 5 - Director → ME
  • 8
    Suite G04 1 Quality Court, Chancery Lane, London, England
    Active Corporate (1 parent)
    Equity (Company account)
    336 GBP2022-06-30
    Officer
    2019-06-03 ~ 2021-07-24
    IIF 1 - Director → ME
    2019-06-03 ~ 2022-07-27
    IIF 21 - Secretary → ME
    Person with significant control
    2019-06-03 ~ 2020-06-29
    IIF 17 - Ownership of shares – More than 25% but not more than 50% → OE
  • 9
    Flat 55 1 Prince Of Wales Road, London, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    66 GBP2021-10-31
    Person with significant control
    2020-10-26 ~ 2020-11-19
    IIF 23 - Ownership of voting rights - 75% or more → OE
    IIF 23 - Ownership of shares – 75% or more → OE
    IIF 23 - Right to appoint or remove directors → OE

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