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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

    Related profiles found in government register
  • Sieburgh Sjoerdsma, Taco

    Registered addresses and corresponding companies

    • icon of address 35, Hill View Gardens, London, NW9 0TE, England

      IIF 1

    • icon of address 96, Great Titchfield Street, London, W1W 6SQ, England

      IIF 2
  • Sieburgh Sjoerdsma, Taco Andries

    Registered addresses and corresponding companies

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

      IIF 3

    • icon of address 9, Appold Street, London, EC2A 2AP, England

      IIF 4
  • Sieburgh Sjoerdsma, Taco Andries
    born in March 1964

    Resident in England

    Registered addresses and corresponding companies

    • icon of address 4, Bourlet Close, London, W1W 7BJ

      IIF 5
  • Sieburgh Sjoerdsma, Taco Andries
    Netherlands director of research born in March 1964

    Registered addresses and corresponding companies

    • icon of address 19 Carlingford Road, London, NW3 1RY

      IIF 6
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch cfo born in March 1964

    Resident in England

    Registered addresses and corresponding companies

    • icon of address 9, Appold Street, London, EC2A 2AP, England

      IIF 7
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch director born in March 1964

    Resident in England

    Registered addresses and corresponding companies

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

      IIF 8

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

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

    Resident in United Kingdom

    Registered addresses and corresponding companies

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

      IIF 10

    • icon of address 96, Great Titchfield Street, London, W1W 6SQ, England

      IIF 11 IIF 12 IIF 13

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

      IIF 14
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch director born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

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

      IIF 15

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

      IIF 16
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch non-executive director born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

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

      IIF 17
  • Sieburgh Sjoerdsma, Taco Andries
    Dutch research born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

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

      IIF 18
  • Andrijanovs, Andre
    Latvian dcm born in March 1974

    Resident in England

    Registered addresses and corresponding companies

    • icon of address 251 Malden Road, Malden Road, New Malden, KT3 6AG, England

      IIF 19
  • Sullivan, Joseph Andrew
    Us Citizen head of fixed income born in December 1957

    Registered addresses and corresponding companies

    • icon of address 2 Hillsyde Court, Cockeysville, Maryland 21030, U S A

      IIF 20
  • Taco Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

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

      IIF 21
  • Andrijanovs, Andrejs
    Latvian director born in March 1974

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • icon of address 128, City Road, London, EC1V 2NX, United Kingdom

      IIF 22 IIF 23
  • Andrijanovs, Andrejs
    Latvian head of fixed income born in March 1974

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • icon of address 77 Fulham Palace Road, The Foundry, London, 77 Fulham Palace Road, The Foundry, London, Greater London, W6 8AF, United Kingdom

      IIF 24
  • Andrijanovs, Andrejs
    Latvian investment banker born in March 1974

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • icon of address 96, Great Titchfield Street, London, W1W 6SQ, England

      IIF 25
  • Taco Andries Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in England

    Registered addresses and corresponding companies

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

      IIF 26
  • Mr Taco Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

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

      IIF 27
  • Mr Andrejs Andrijanovs
    Latvian born in March 1974

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • icon of address 128, City Road, London, EC1V 2NX, United Kingdom

      IIF 28 IIF 29
  • Mr Taco Andries Sieburgh Sjoerdsma
    Dutch born in March 1964

    Resident in United Kingdom

    Registered addresses and corresponding companies

    • icon of address 20, Victoria Street, London, SW1H 0NF, United Kingdom

      IIF 30

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

      IIF 31
child relation
Offspring entities and appointments
Active 10
  • 1
    icon of address 128 City Road, London, United Kingdom
    Active Corporate (2 parents)
    Officer
    icon of calendar 2025-05-01 ~ now
    IIF 22 - Director → ME
    Person with significant control
    icon of calendar 2025-05-01 ~ now
    IIF 29 - Ownership of shares – More than 25% but not more than 50% → OE
    IIF 29 - Ownership of voting rights - More than 25% but not more than 50% → OE
  • 2
    icon of address 128 City Road, London, United Kingdom
    Active Corporate (3 parents)
    Officer
    icon of calendar 2025-05-13 ~ now
    IIF 23 - Director → ME
  • 3
    icon of address 96 Great Titchfield Street, London, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2017-06-07 ~ dissolved
    IIF 14 - Director → ME
  • 4
    icon of address 1 Prince Of Wales Road, Flat 55, London, England
    Dissolved Corporate (2 parents)
    Equity (Company account)
    100 GBP2019-02-28
    Officer
    icon of calendar 2015-02-17 ~ dissolved
    IIF 18 - Director → ME
  • 5
    icon of address 85 Great Portland Street, First Floor, London, United Kingdom
    Active Corporate (3 parents)
    Equity (Company account)
    513,254 GBP2024-12-31
    Officer
    icon of calendar 2013-09-05 ~ now
    IIF 17 - Director → ME
    icon of calendar 2020-04-01 ~ now
    IIF 3 - Secretary → ME
  • 6
    icon of address 85 Great Portland Street, First Floor, London, United Kingdom
    Active Corporate (2 parents)
    Equity (Company account)
    270,525 GBP2025-03-31
    Officer
    icon of calendar 2018-10-22 ~ now
    IIF 16 - Director → ME
    Person with significant control
    icon of calendar 2018-10-22 ~ now
    IIF 31 - Right to appoint or remove directors → OE
    IIF 31 - Ownership of voting rights - 75% or more → OE
    IIF 31 - Ownership of shares – 75% or more → OE
  • 7
    icon of address 69 Belsize Park Gardens, Flat 1, London, England
    Dissolved Corporate (1 parent)
    Officer
    icon of calendar 2017-10-06 ~ dissolved
    IIF 10 - Director → ME
    Person with significant control
    icon of calendar 2017-10-06 ~ dissolved
    IIF 21 - Right to appoint or remove directors → OE
    IIF 21 - Ownership of voting rights - 75% or more → OE
    IIF 21 - Ownership of shares – 75% or more → OE
  • 8
    STURGEON CAPITAL LLP - 2011-08-17
    icon of address 4 Bourlet Close, London
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2009-06-05 ~ dissolved
    IIF 5 - LLP Designated Member → ME
  • 9
    icon of address 15 Half Moon Street, London, England
    Active Corporate (5 parents, 1 offspring)
    Officer
    icon of calendar 2023-09-12 ~ now
    IIF 8 - Director → ME
  • 10
    icon of address Flat 55 1 Prince Of Wales Road, London, England
    Dissolved Corporate (2 parents)
    Officer
    icon of calendar 2020-10-26 ~ dissolved
    IIF 9 - Director → ME
Ceased 12
  • 1
    CONTINUO LTD - 2017-08-30
    STURGEON SECURITIES LTD - 2015-09-15
    icon of address 9 Kingsway, London, England
    Active Corporate (4 parents, 1 offspring)
    Equity (Company account)
    57,814 GBP2022-04-30
    Officer
    icon of calendar 2016-09-01 ~ 2017-03-18
    IIF 25 - Director → ME
    icon of calendar 2013-04-08 ~ 2018-08-01
    IIF 12 - Director → ME
  • 2
    icon of address Plantworks, 1a Britannia Street, London, England
    Active Corporate (2 parents)
    Officer
    icon of calendar 2015-11-05 ~ 2018-07-24
    IIF 13 - Director → ME
  • 3
    icon of address 128 City Road, London, United Kingdom
    Active Corporate (3 parents)
    Person with significant control
    icon of calendar 2025-05-13 ~ 2025-07-31
    IIF 28 - Ownership of voting rights - More than 25% but not more than 50% → OE
    IIF 28 - Ownership of shares – More than 25% but not more than 50% → OE
  • 4
    VIVADA LIMITED - 2000-01-20
    icon of address Geoffrey Martin & Co 1 Westferry Circus, Canary Wharf, London, England
    Dissolved Corporate (1 parent, 1 offspring)
    Officer
    icon of calendar 2003-12-01 ~ 2007-03-13
    IIF 6 - Director → ME
  • 5
    icon of address 9 Appold Street, London, England
    Active Corporate (3 parents)
    Equity (Company account)
    192,188 GBP2022-12-31
    Officer
    icon of calendar 2022-04-22 ~ 2023-11-15
    IIF 7 - Director → ME
    icon of calendar 2021-08-09 ~ 2023-11-15
    IIF 4 - Secretary → ME
  • 6
    icon of address 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
    icon of calendar 2016-04-06 ~ 2019-09-11
    IIF 30 - Has significant influence or control → OE
  • 7
    icon of address 379b Acton Lane, London, England
    Active Corporate (2 parents)
    Equity (Company account)
    121,770 USD2024-05-31
    Officer
    icon of calendar 2014-06-18 ~ 2018-12-10
    IIF 2 - Secretary → ME
  • 8
    LEGG MASON LIMITED - 2005-12-08
    icon of address 81 Station Road, Marlow, Buckinghamshire
    Dissolved Corporate (3 parents)
    Officer
    icon of calendar 2003-09-30 ~ 2008-09-21
    IIF 20 - Director → ME
  • 9
    STURGEON CAPITAL GFM LTD - 2011-08-17
    icon of address Plantworks 1a Britannia Street, London, England
    Active Corporate (4 parents, 4 offsprings)
    Officer
    icon of calendar 2010-10-27 ~ 2018-07-24
    IIF 11 - Director → ME
  • 10
    icon of address Suite G04 1 Quality Court, Chancery Lane, London, England
    Active Corporate (1 parent)
    Equity (Company account)
    336 GBP2022-06-30
    Officer
    icon of calendar 2019-06-03 ~ 2021-07-24
    IIF 15 - Director → ME
    icon of calendar 2019-06-03 ~ 2022-07-27
    IIF 1 - Secretary → ME
    Person with significant control
    icon of calendar 2019-06-03 ~ 2020-06-29
    IIF 27 - Ownership of shares – More than 25% but not more than 50% → OE
  • 11
    VISOR CAPITAL (UK) LTD - 2024-08-20
    icon of address 77 Fulham Palace Road, The Foundry, London 77 Fulham Palace Road, The Foundry, London, Greater London, United Kingdom
    Active Corporate (2 parents, 1 offspring)
    Officer
    icon of calendar 2017-01-13 ~ 2025-02-18
    IIF 24 - Director → ME
    icon of calendar 2025-03-10 ~ 2025-04-02
    IIF 19 - Director → ME
  • 12
    icon of address Flat 55 1 Prince Of Wales Road, London, England
    Dissolved Corporate (2 parents)
    Person with significant control
    icon of calendar 2020-10-26 ~ 2020-11-19
    IIF 26 - Right to appoint or remove directors → OE
    IIF 26 - Ownership of voting rights - 75% or more → OE
    IIF 26 - 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.