logo
explain how to read the page

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 5
  • 1
    Hatch, David Craig
    Born in November 1964
    Individual (9 offsprings)
    Officer
    icon of calendar 2025-04-14 ~ now
    OF - Director → CIF 0
  • 2
    Gillespie, Andrew James
    Born in May 1969
    Individual (57 offsprings)
    Officer
    icon of calendar 2019-03-21 ~ now
    OF - Director → CIF 0
  • 3
    Murdoch, Andrew
    Individual (62 offsprings)
    Officer
    icon of calendar 2023-10-11 ~ now
    OF - Secretary → CIF 0
  • 4
    Lemmon, Richard Alan
    Born in August 1959
    Individual (59 offsprings)
    Officer
    icon of calendar 2020-01-15 ~ now
    OF - Director → CIF 0
  • 5
    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 voting rights - 75% or moreCIF 0
    PE - Right to appoint or remove directorsCIF 0
    PE - Ownership of shares – 75% or moreCIF 0
Ceased 16
  • 1
    Olver, Graham Dudley
    Director born in May 1961
    Individual (2 offsprings)
    Officer
    icon of calendar 2009-08-03 ~ 2015-08-31
    OF - Director → CIF 0
  • 2
    Zukowski, Elizabeth Lina
    Director born in June 1958
    Individual
    Officer
    icon of calendar 2008-07-01 ~ 2011-03-04
    OF - Director → CIF 0
  • 3
    Collard, Philip David
    Director born in October 1960
    Individual (3 offsprings)
    Officer
    icon of calendar 2008-07-01 ~ 2009-06-26
    OF - Director → CIF 0
  • 4
    Jenkins, John William
    Director born in April 1961
    Individual (1 offspring)
    Officer
    icon of calendar 2008-07-01 ~ 2009-01-01
    OF - Director → CIF 0
  • 5
    Mccormick, Douglas Alexander Drysdale
    Chief Executive Officer born in January 1962
    Individual (2 offsprings)
    Officer
    icon of calendar 2017-06-12 ~ 2020-03-04
    OF - Director → CIF 0
  • 6
    Haynes, Lawrence John
    Company Director born in December 1952
    Individual (3 offsprings)
    Officer
    icon of calendar 2008-05-16 ~ 2009-01-06
    OF - Director → CIF 0
  • 7
    Hartley, Robert
    Chartered Accountant born in March 1958
    Individual (5 offsprings)
    Officer
    icon of calendar 2008-05-16 ~ 2009-04-14
    OF - Director → CIF 0
  • 8
    Cummins, Sean Vincent
    Director born in September 1962
    Individual
    Officer
    icon of calendar 2011-12-05 ~ 2016-06-07
    OF - Director → CIF 0
  • 9
    Procter, Michael John
    Director born in July 1952
    Individual (2 offsprings)
    Officer
    icon of calendar 2008-07-01 ~ 2010-06-30
    OF - Director → CIF 0
  • 10
    Hamer, Paul Christopher
    Director born in March 1969
    Individual (1 offspring)
    Officer
    icon of calendar 2008-07-01 ~ 2017-06-09
    OF - Director → CIF 0
  • 11
    Whitworth, Benjamin Warwick
    Individual (20 offsprings)
    Officer
    icon of calendar 2011-05-03 ~ 2019-10-31
    OF - Secretary → CIF 0
  • 12
    Clarkson, Iain Geoffrey
    Chartered Accountant born in February 1967
    Individual (2 offsprings)
    Officer
    icon of calendar 2016-06-07 ~ 2019-02-25
    OF - Director → CIF 0
  • 13
    Connery, Denis Patrick
    Company Director born in March 1957
    Individual (1 offspring)
    Officer
    icon of calendar 2008-05-16 ~ 2008-11-05
    OF - Director → CIF 0
    Connery, Denis Patrick
    Individual (1 offspring)
    Officer
    icon of calendar 2008-05-16 ~ 2008-11-05
    OF - Secretary → CIF 0
  • 14
    Farbridge, Caroline Louise
    Chartered Secretary
    Individual
    Officer
    icon of calendar 2008-11-05 ~ 2010-10-15
    OF - Secretary → CIF 0
  • 15
    Hopson, Preston
    Individual (16 offsprings)
    Officer
    icon of calendar 2020-01-07 ~ 2023-10-11
    OF - Secretary → CIF 0
  • 16
    Wilton, David Charles
    Director born in October 1962
    Individual (2 offsprings)
    Officer
    icon of calendar 2009-02-10 ~ 2011-12-02
    OF - Director → CIF 0
parent relation
Company in focus

TETRA TECH GROUP LIMITED

Previous name
WYG GROUP LIMITED - 2020-12-16
Standard Industrial Classification
70100 - Activities Of Head Offices

Related profiles found in government register
  • TETRA TECH GROUP LIMITED
    Info
    WYG GROUP LIMITED - 2020-12-16
    Registered number 06595608
    icon of address3 Sovereign Square, Sovereign Street, Leeds LS1 4ER
    PRIVATE LIMITED COMPANY incorporated on 2008-05-16 (17 years 7 months). The company status is Active.
    The last date of confirmation statement was made at 2025-07-21
    CIF 0
  • TETRA TECH GROUP LIMITED
    S
    Registered number 06595608
    icon of address3, Sovereign Square, Sovereign Street, Leeds, England, LS1 4ER
    Limited By Shares in Companies House, United Kingdom
    CIF 1 CIF 2
    Limited Liability Company in Companies House, England
    CIF 3
child relation
Offspring entities and appointments
Active 4
  • 1
    GREENBACK LIMITED - 1995-05-15
    ERNEST GREEN ENVIRONMENTAL LIMITED - 1998-01-16
    WHITE YOUNG GREEN ENVIRONMENTAL LIMITED - 2008-07-01
    WYG ENVIRONMENT PLANNING TRANSPORT LIMITED - 2020-12-16
    icon of address3 Sovereign Square, Sovereign Street, Leeds, England
    Active Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 1 - Ownership of shares – 75% or moreOE
    CIF 1 - Ownership of voting rights - 75% or moreOE
    CIF 1 - Right to appoint or remove directorsOE
  • 2
    WYG ENGINEERING LIMITED - 2020-12-30
    WHITE YOUNG GREEN CONSULTING LIMITED - 2008-07-01
    WHITE YOUNG LIMITED - 1986-02-07
    BROXMILL LIMITED - 1985-12-20
    WHITE YOUNG CONSULTING GROUP LIMITED - 1998-01-05
    icon of address3 Sovereign Square, Sovereign Street, Leeds, England
    Active Corporate (4 parents, 7 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 3 - Ownership of shares – 75% or moreOE
  • 3
    WYG MANAGEMENT SERVICES LIMITED - 2020-12-16
    TWEEDS LIMITED - 2007-08-28
    icon of address3 Sovereign Square, Sovereign Street, Leeds, England
    Active Corporate (3 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 2 - Ownership of shares – 75% or moreOE
    CIF 2 - Ownership of voting rights - 75% or moreOE
  • 4
    IMC ECONOMIC AND ENERGY CONSULTANTS LIMITED - 1998-05-20
    BROOMCO (1087) LIMITED - 1996-06-17
    IMC CONSULTING LIMITED - 2005-07-01
    icon of addressArndale Court Otley Road, Headingley, Leeds
    Converted / Closed Corporate (7 parents, 1 offspring)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 4 - Ownership of shares – 75% or moreOE

The content of this website is protected by AgonGuard.

© 2022-2025 Polylogarithmic Technology Ltd (Registered in England and Wales No. 14256313). All rights reserved.

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