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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 2
  • 1
    Gillespie, Andrew James
    Born in May 1969
    Individual (57 offsprings)
    Officer
    icon of calendar 2011-08-04 ~ now
    OF - Director → CIF 0
  • 2
    icon of address3, Sovereign Square, Sovereign Street, Leeds, England
    Corporate (6 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    PE - Ownership of shares – 75% or moreCIF 0
    PE - Ownership of voting rights - 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
Ceased 17
  • 1
    Olver, Graham Dudley
    Group Commercial Director born in May 1961
    Individual (2 offsprings)
    Officer
    icon of calendar 2009-08-03 ~ 2012-08-28
    OF - Director → CIF 0
  • 2
    Birthistle, Peter
    Director born in August 1968
    Individual
    Officer
    icon of calendar 2008-07-01 ~ 2010-09-30
    OF - Director → CIF 0
  • 3
    Cunningham, Michael John
    Director born in December 1969
    Individual
    Officer
    icon of calendar 2008-07-01 ~ 2011-10-07
    OF - Director → CIF 0
  • 4
    Moore, Raymond James
    Director born in September 1962
    Individual
    Officer
    icon of calendar 2008-07-01 ~ 2010-11-15
    OF - Director → CIF 0
  • 5
    Hartley, Robert
    Finance Officer born in March 1958
    Individual (5 offsprings)
    Officer
    icon of calendar 2004-05-24 ~ 2009-04-14
    OF - Director → CIF 0
    Hartley, Robert
    Individual (5 offsprings)
    Officer
    icon of calendar 2004-05-24 ~ 2006-07-01
    OF - Secretary → CIF 0
  • 6
    Hasson, David Lawrence
    Individual
    Officer
    icon of calendar 2010-11-25 ~ 2012-08-29
    OF - Secretary → CIF 0
  • 7
    Hamer, Paul Christopher
    Director born in March 1969
    Individual (1 offspring)
    Officer
    icon of calendar 2008-07-01 ~ 2010-12-13
    OF - Director → CIF 0
  • 8
    White, Claire Christina
    Director born in March 1967
    Individual (1 offspring)
    Officer
    icon of calendar 2010-10-15 ~ 2011-08-04
    OF - Director → CIF 0
  • 9
    Sims, Gary Nial
    Environmental Scientist born in September 1968
    Individual (2 offsprings)
    Officer
    icon of calendar 2004-05-24 ~ 2009-04-27
    OF - Director → CIF 0
  • 10
    Purvis, John George
    Chartered Engineer born in October 1947
    Individual (1 offspring)
    Officer
    icon of calendar 2004-05-24 ~ 2007-09-17
    OF - Director → CIF 0
  • 11
    Whitworth, Benjamin Warwick
    Solicitor born in August 1965
    Individual (20 offsprings)
    Officer
    icon of calendar 2012-05-18 ~ 2019-10-31
    OF - Director → CIF 0
    Whitworth, Benjamin Warwick
    Individual (20 offsprings)
    Officer
    icon of calendar 2012-08-29 ~ 2019-10-31
    OF - Secretary → CIF 0
  • 12
    Boyd, John Michael
    Geologist born in December 1971
    Individual
    Officer
    icon of calendar 2004-05-24 ~ 2008-07-01
    OF - Director → CIF 0
  • 13
    Connery, Denis Patrick
    Company Director born in March 1957
    Individual (1 offspring)
    Officer
    icon of calendar 2004-05-24 ~ 2008-11-05
    OF - Director → CIF 0
    Connery, Denis Patrick
    Individual (1 offspring)
    Officer
    icon of calendar 2006-07-01 ~ 2008-11-05
    OF - Secretary → CIF 0
  • 14
    Farbridge, Caroline Louise
    Individual
    Officer
    icon of calendar 2008-11-05 ~ 2010-10-15
    OF - Secretary → CIF 0
  • 15
    Biggerstaff, William Angus
    Company Director born in July 1944
    Individual
    Officer
    icon of calendar 2010-12-01 ~ 2012-03-31
    OF - Director → CIF 0
  • 16
    Wilton, David Charles
    Director born in October 1962
    Individual (2 offsprings)
    Officer
    icon of calendar 2009-02-10 ~ 2010-12-13
    OF - Director → CIF 0
  • 17
    icon of address79 Chichester Street, Belfast
    Active Corporate (4 parents, 57 offsprings)
    Equity (Company account)
    1 GBP2024-03-31
    Officer
    2004-05-24 ~ 2004-05-24
    PE - Director → CIF 0
parent relation
Company in focus

TETRA TECH ENVIRONMENTAL AND PLANNING (NORTHERN IRELAND) LIMITED

Previous names
WYG ENVIRONMENTAL AND PLANNING (NORTHERN IRELAND) LIMITED - 2021-01-08
WYG ENVIRONMENT AND PLANNING (NORTHERN IRELAND) LIMITED - 2009-03-25
WHITE YOUNG GREEN ENVIRONMENTAL (NORTHERN IRELAND) LIMITED - 2008-07-02
WYG ENVIRONMENTAL (NORTHERN IRELAND) LIMITED - 2008-11-27
Standard Industrial Classification
74901 - Environmental Consulting Activities
71129 - Other Engineering Activities

  • TETRA TECH ENVIRONMENTAL AND PLANNING (NORTHERN IRELAND) LIMITED
    Info
    WYG ENVIRONMENTAL AND PLANNING (NORTHERN IRELAND) LIMITED - 2021-01-08
    WYG ENVIRONMENT AND PLANNING (NORTHERN IRELAND) LIMITED - 2021-01-08
    WHITE YOUNG GREEN ENVIRONMENTAL (NORTHERN IRELAND) LIMITED - 2021-01-08
    WYG ENVIRONMENTAL (NORTHERN IRELAND) LIMITED - 2021-01-08
    Registered number NI050736
    icon of address1 Locksley Business Park, Montgomery Road, Belfast BT6 9UP
    PRIVATE LIMITED COMPANY incorporated on 2004-05-24 (21 years 7 months). The company status is Active.
    The last date of confirmation statement was made at 2025-07-21
    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.