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The above diagram shows the color scheme of the layout in the main result page. The parent entities and officers are those entities, including individual and legal persons, have significant controls over the company in focus. The offspring entities and appointments are those entities that the company 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
Active 4
  • 1
    Tobin, Keith Martin
    Born in April 1974
    Individual (11 offsprings)
    Officer
    icon of calendar 2024-03-08 ~ now
    OF - Director → CIF 0
  • 2
    Sibson, Lucinda
    Individual (11 offsprings)
    Officer
    icon of calendar 2022-10-14 ~ now
    OF - Secretary → CIF 0
  • 3
    Denis O'brien
    Born in April 1958
    Individual (24 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    PE - Ownership of shares – More than 50% but less than 75%CIF 0
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of voting rights - More than 50% but less than 75%CIF 0
  • 4
    O'donnell, Barry
    Born in November 1975
    Individual (12 offsprings)
    Officer
    icon of calendar 2021-08-12 ~ now
    OF - Director → CIF 0
Ceased 12
  • 1
    Devereux, Niall Joseph
    Director born in August 1964
    Individual
    Officer
    icon of calendar 2011-03-03 ~ 2012-09-07
    OF - Director → CIF 0
    Devereux, Niall Joseph
    Individual
    Officer
    icon of calendar 2011-03-03 ~ 2012-09-07
    OF - Secretary → CIF 0
  • 2
    Doherty, Alan
    Company Director born in March 1964
    Individual
    Officer
    icon of calendar 2013-04-01 ~ 2018-10-08
    OF - Director → CIF 0
  • 3
    Harvey, Brian
    Director born in August 1966
    Individual
    Officer
    icon of calendar 2011-03-03 ~ 2013-06-30
    OF - Director → CIF 0
  • 4
    Kelly, Brian
    Director born in January 1977
    Individual (3 offsprings)
    Officer
    icon of calendar 2018-08-01 ~ 2024-03-08
    OF - Director → CIF 0
  • 5
    Walsh, Brian
    Individual
    Officer
    icon of calendar 2021-08-12 ~ 2022-10-14
    OF - Secretary → CIF 0
  • 6
    Jordan, Patrick Plunkett
    Director born in December 1964
    Individual
    Officer
    icon of calendar 2011-03-03 ~ 2011-09-30
    OF - Director → CIF 0
  • 7
    Carolan, Patrick
    Group Financial Controller born in March 1979
    Individual (4 offsprings)
    Officer
    icon of calendar 2012-09-07 ~ 2017-10-13
    OF - Director → CIF 0
    Carolan, Patrick
    Individual (4 offsprings)
    Officer
    icon of calendar 2012-09-07 ~ 2016-12-30
    OF - Secretary → CIF 0
  • 8
    Malone, Thomas Joseph
    Director born in October 1972
    Individual
    Officer
    icon of calendar 2011-03-03 ~ 2019-05-28
    OF - Director → CIF 0
  • 9
    Corkery, Sean
    Company Director born in April 1958
    Individual
    Officer
    icon of calendar 2013-07-01 ~ 2018-08-01
    OF - Director → CIF 0
  • 10
    Delany, Sandra
    Individual (3 offsprings)
    Officer
    icon of calendar 2016-12-30 ~ 2018-02-08
    OF - Secretary → CIF 0
  • 11
    O'donnell, Barry
    Individual (12 offsprings)
    Officer
    icon of calendar 2018-02-08 ~ 2021-08-12
    OF - Secretary → CIF 0
  • 12
    Lucey, Sean
    Company Director born in July 1962
    Individual
    Officer
    icon of calendar 2018-10-08 ~ 2021-08-31
    OF - Director → CIF 0
parent relation
Company in focus

ACTAVO (NORTHERN IRELAND) LIMITED

Previous name
SIERRA SUPPORT SERVICES LIMITED - 2015-11-09
Standard Industrial Classification
82990 - Other Business Support Service Activities N.e.c.

  • ACTAVO (NORTHERN IRELAND) LIMITED
    Info
    SIERRA SUPPORT SERVICES LIMITED - 2015-11-09
    Registered number NI606408
    icon of addressUnits 14 & 15 Harbour Court, Sydenham Business Park, Belfast BT3 9HB
    PRIVATE LIMITED COMPANY incorporated on 2011-03-03 (14 years 11 months). The company status is Active.
    The last date of confirmation statement was made at 2025-03-03
    CIF 0
child relation
Offspring entities and appointments
Active 0
  • Not found in our database.

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