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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

Obrien, Mark Eamonn

    Related profiles found in government register
  • Obrien, Mark Eamonn
    British estimator

    Registered addresses and corresponding companies
    • 83 Longmead Avenue, Great Baddow, Chelmsford, CM2 7EZ

      IIF 1
  • O'brien, Mark Eamonn
    British born in December 1978

    Resident in England

    Registered addresses and corresponding companies
    • Little Renters Farm, Beckingham Street, Little Totham, CM9 8LF, United Kingdom

      IIF 2
    • 52, London Road, Maldon, CM9 6HG, England

      IIF 3 IIF 4
    • 52 London Road, Maldon, Essex, CM9 6HG, United Kingdom

      IIF 5
  • O'brien, Mark Eamonn
    British designer born in December 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 83 Longmead Avenue, Chelmsford, Essex, CM2 7EZ

      IIF 6
  • O'brien, Mark Eamonn
    British engineer born in December 1978

    Resident in United Kingdom

    Registered addresses and corresponding companies
    • 3, Warners Mill, Silks Way, Braintree, Essex, CM7 3GB, United Kingdom

      IIF 7
  • Mr Mark Eamonn O'brien
    British born in December 1978

    Resident in England

    Registered addresses and corresponding companies
    • Little Renters Farm, Beckingham Street, Little Totham, CM9 8LF, United Kingdom

      IIF 8
    • 52, London Road, Maldon, CM9 6HG, England

      IIF 9 IIF 10
    • 52 London Road, Maldon, Essex, CM9 6HG, United Kingdom

      IIF 11
child relation
Offspring entities and appointments 7
  • 1
    CASEY O'BRIEN PROPERTY SERVICES LIMITED
    07865493
    3 Warners Mill, Silks Way, Braintree, Essex, United Kingdom
    Dissolved Corporate (2 parents)
    Officer
    2011-11-30 ~ dissolved
    IIF 7 - Director → ME
  • 2
    ECO HEATING STORE LTD
    11353249
    Little Renters Farm, Beckingham Street, Little Totham, United Kingdom
    Active Corporate (2 parents)
    Officer
    2018-05-10 ~ now
    IIF 2 - Director → ME
    Person with significant control
    2018-05-10 ~ now
    IIF 8 - Ownership of shares – More than 25% but not more than 50% OE
    IIF 8 - Ownership of voting rights - More than 25% but not more than 50% OE
  • 3
    L K SYSTEMS LIMITED
    - now 05120963
    LAGERSTEDT & KRANTZ UK LTD
    - 2008-03-20 05120963
    61 Station Road, Sudbury, Suffolk
    Dissolved Corporate (6 parents)
    Officer
    2004-07-01 ~ 2009-11-29
    IIF 1 - Secretary → ME
  • 4
    LK SYSTEMS (RO) LIMITED
    06111903
    30 St Giles, Oxford, Oxfordshire
    Dissolved Corporate (3 parents)
    Officer
    2008-01-01 ~ dissolved
    IIF 6 - Director → ME
  • 5
    MYJOULE ENERGY LTD
    12840732
    52 London Road, Maldon, England
    Active Corporate (2 parents)
    Officer
    2020-08-27 ~ now
    IIF 4 - Director → ME
    Person with significant control
    2020-08-27 ~ now
    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
  • 6
    TERRA THERMA LIMITED
    04382470
    Little Renters Farm, Beckingham Street, Little Totham, Maldon, United Kingdom
    Active Corporate (6 parents)
    Officer
    2010-01-12 ~ now
    IIF 5 - Director → ME
    Person with significant control
    2016-04-06 ~ now
    IIF 11 - Ownership of voting rights - More than 25% but not more than 50% OE
    IIF 11 - Ownership of shares – More than 25% but not more than 50% OE
  • 7
    TERRA THERMA RENEWABLES LIMITED
    16721661
    52 London Road, Maldon, England
    Active Corporate (2 parents)
    Officer
    2025-09-16 ~ now
    IIF 3 - Director → ME
    Person with significant control
    2025-09-16 ~ now
    IIF 10 - Right to appoint or remove directors OE
    IIF 10 - Ownership of voting rights - 75% or more OE
    IIF 10 - Ownership of shares – 75% or more OE

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Contains public sector information retrieved at 22 March 2026 and licensed under the Open Government Licence v3.0.