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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 5
  • 1
    Hatch, David Craig
    Born in November 1964
    Individual (9 offsprings)
    Officer
    icon of calendar 2025-04-22 ~ now
    OF - Director → CIF 0
  • 2
    Gillespie, Andrew James
    Born in May 1969
    Individual (57 offsprings)
    Officer
    icon of calendar 2020-01-16 ~ 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 2019-07-09 ~ now
    OF - Director → CIF 0
  • 5
    COFFEY UK LIMITED - 2019-05-08
    icon of address1, Northfield Road, Reading, Berkshire, England
    Active Corporate (5 parents, 5 offsprings)
    Equity (Company account)
    816,000 GBP2024-09-30
    Person with significant control
    icon of calendar 2019-07-09 ~ now
    PE - Ownership of shares – 75% or more → CIF 0
    PE - Ownership of voting rights - 75% or more → CIF 0
    PE - Right to appoint or remove directors → CIF 0
Ceased 35
  • 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
    Olver, Graham Dudley
    Director
    Individual (2 offsprings)
    Officer
    icon of calendar 2009-08-03 ~ 2011-05-03
    OF - Secretary → CIF 0
  • 2
    Amidon, Derek Gordon
    President born in May 1967
    Individual
    Officer
    icon of calendar 2019-07-09 ~ 2023-05-12
    OF - Director → CIF 0
  • 3
    Jeffcoat, David John
    Director born in April 1950
    Individual
    Officer
    icon of calendar 2009-12-16 ~ 2018-09-25
    OF - Director → CIF 0
  • 4
    Simmons, Peter Francis
    Consulting Engineer born in February 1939
    Individual (1 offspring)
    Officer
    icon of calendar ~ 1992-04-30
    OF - Director → CIF 0
  • 5
    Brownlie, Bill
    Director born in June 1953
    Individual
    Officer
    icon of calendar 2020-01-16 ~ 2025-04-22
    OF - Director → CIF 0
  • 6
    Mccormick, Douglas Alexander Drysdale
    Chief Executive Officer born in January 1962
    Individual (2 offsprings)
    Officer
    icon of calendar 2017-06-12 ~ 2020-01-16
    OF - Director → CIF 0
  • 7
    Rider, Brian Leonard
    Consulting Engineer born in September 1930
    Individual
    Officer
    icon of calendar ~ 1995-08-31
    OF - Director → CIF 0
  • 8
    Barr, Robert George Anthony
    Director born in May 1956
    Individual (7 offsprings)
    Officer
    icon of calendar 2007-01-01 ~ 2015-09-24
    OF - Director → CIF 0
  • 9
    Mctighe, Robert Michael
    Director born in October 1953
    Individual (10 offsprings)
    Officer
    icon of calendar 2009-08-03 ~ 2017-09-21
    OF - Director → CIF 0
  • 10
    Haynes, Lawrence John
    Director born in December 1952
    Individual (3 offsprings)
    Officer
    icon of calendar 2007-06-18 ~ 2009-01-05
    OF - Director → CIF 0
  • 11
    Hartley, Robert
    Chartered Accountant born in March 1958
    Individual (5 offsprings)
    Officer
    icon of calendar 1999-05-04 ~ 2009-04-14
    OF - Director → CIF 0
    Hartley, Robert
    Chartered Accountant
    Individual (5 offsprings)
    Officer
    icon of calendar 1999-05-04 ~ 2006-07-01
    OF - Secretary → CIF 0
    icon of calendar 2008-11-05 ~ 2009-04-14
    OF - Secretary → CIF 0
  • 12
    Douglas, Ian Ronald
    Consulting Engineer born in April 1939
    Individual
    Officer
    icon of calendar ~ 1997-07-21
    OF - Director → CIF 0
  • 13
    Cummins, Sean Vincent
    Director born in September 1962
    Individual
    Officer
    icon of calendar 2011-12-02 ~ 2016-06-07
    OF - Director → CIF 0
  • 14
    Moxon, Michael Colin
    Company Director born in November 1941
    Individual
    Officer
    icon of calendar ~ 1998-09-30
    OF - Director → CIF 0
  • 15
    Legg, David Noel
    Director born in December 1936
    Individual
    Officer
    icon of calendar ~ 1997-04-01
    OF - Director → CIF 0
  • 16
    Dean, Michael John
    Consulting Engineer born in March 1947
    Individual (1 offspring)
    Officer
    icon of calendar ~ 1997-07-21
    OF - Director → CIF 0
  • 17
    Duckworth, Brian
    Director born in April 1949
    Individual (2 offsprings)
    Officer
    icon of calendar 2005-04-01 ~ 2009-08-03
    OF - Director → CIF 0
  • 18
    Rivett, John Martin
    Consulting Engineer born in November 1947
    Individual
    Officer
    icon of calendar ~ 1999-02-01
    OF - Director → CIF 0
  • 19
    Mccaffrey, Richard George, Mr.
    Director born in June 1951
    Individual (2 offsprings)
    Officer
    icon of calendar 2005-07-01 ~ 2008-01-24
    OF - Director → CIF 0
  • 20
    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
  • 21
    Wood, Peter Scott
    Director born in April 1947
    Individual
    Officer
    icon of calendar 2004-03-01 ~ 2009-03-31
    OF - Director → CIF 0
  • 22
    Beeton, Jeremy John, Dr
    Director born in March 1953
    Individual (2 offsprings)
    Officer
    icon of calendar 2015-10-01 ~ 2019-07-09
    OF - Director → CIF 0
  • 23
    Brayson, William Richard
    Chartered Accountant born in May 1946
    Individual (1 offspring)
    Officer
    icon of calendar 1997-07-21 ~ 2003-12-17
    OF - Director → CIF 0
  • 24
    Purvis, John George
    Chartered Engineer born in October 1947
    Individual (1 offspring)
    Officer
    icon of calendar 1997-07-21 ~ 2007-09-17
    OF - Director → CIF 0
  • 25
    Hagues, Ian James
    Individual (2 offsprings)
    Officer
    icon of calendar ~ 1999-05-04
    OF - Secretary → CIF 0
  • 26
    Whitworth, Benjamin Warwick
    Individual (20 offsprings)
    Officer
    icon of calendar 2011-05-03 ~ 2019-10-31
    OF - Secretary → CIF 0
  • 27
    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
  • 28
    Masom, Neil Andrew
    Director born in March 1959
    Individual (5 offsprings)
    Officer
    icon of calendar 2015-10-01 ~ 2019-07-09
    OF - Director → CIF 0
  • 29
    Connery, Denis Patrick
    Company Director born in March 1957
    Individual (1 offspring)
    Officer
    icon of calendar 2003-11-03 ~ 2008-11-05
    OF - Director → CIF 0
    Connery, Denis Patrick
    Director
    Individual (1 offspring)
    Officer
    icon of calendar 2006-07-01 ~ 2008-11-05
    OF - Secretary → CIF 0
  • 30
    Chadwick, John Henry
    Consulting Engineer born in September 1942
    Individual (6 offsprings)
    Officer
    icon of calendar ~ 1994-06-30
    OF - Director → CIF 0
  • 31
    Richardson, John Desmond
    Business Development Consultan born in July 1947
    Individual
    Officer
    icon of calendar 1997-07-21 ~ 2010-01-31
    OF - Director → CIF 0
  • 32
    Cooper, William Gareth
    Company Director born in August 1943
    Individual (2 offsprings)
    Officer
    icon of calendar 1993-10-01 ~ 2004-10-10
    OF - Director → CIF 0
  • 33
    Hopson, Preston
    Individual (16 offsprings)
    Officer
    icon of calendar 2020-01-07 ~ 2023-10-11
    OF - Secretary → CIF 0
  • 34
    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
    Wilton, David Charles
    Director
    Individual (2 offsprings)
    Officer
    icon of calendar 2009-04-14 ~ 2009-08-03
    OF - Secretary → CIF 0
  • 35
    Marini, Marcia Maria
    Non-Executive Director born in June 1967
    Individual (3 offsprings)
    Officer
    icon of calendar 2018-01-01 ~ 2019-07-09
    OF - Director → CIF 0
parent relation
Company in focus

TETRA TECH UK CONSULTING GROUP LIMITED

Previous names
WYG LIMITED - 2020-12-16
WYG PLC - 2019-07-10
WHITE YOUNG GREEN PLC - 2009-12-18
TETRA TECH UK GROUP CONSULTING LIMITED - 2020-12-17
ERNEST GREEN AND PARTNERS HOLDINGS PLC - 1997-07-21
Standard Industrial Classification
71129 - Other Engineering Activities
71112 - Urban Planning And Landscape Architectural Activities
70229 - Management Consultancy Activities Other Than Financial Management
70100 - Activities Of Head Offices
Related profiles found in government register
  • TETRA TECH UK CONSULTING GROUP LIMITED
    Info
    WYG LIMITED - 2020-12-16
    WYG PLC - 2020-12-16
    WHITE YOUNG GREEN PLC - 2020-12-16
    TETRA TECH UK GROUP CONSULTING LIMITED - 2020-12-16
    ERNEST GREEN AND PARTNERS HOLDINGS PLC - 2020-12-16
    Registered number 01869543
    icon of address3 Sovereign Square, Sovereign Street, Leeds LS1 4ER
    PRIVATE LIMITED COMPANY incorporated on 1984-12-06 (41 years 1 month). The company status is Active.
    The last date of confirmation statement was made at 2025-05-11
    CIF 0
  • TETRA TECH UK CONSULTING GROUP LIMITED
    S
    Registered number 01869543
    icon of address3, Sovereign Square, Sovereign Street, Leeds, England, LS1 4ER
    Private Limited Company in Companies House, England
    CIF 1 CIF 2
    Private Limited Company in Companies House, United Kingdom
    CIF 3
(more)
child relation
Offspring entities and appointments
Active 6
  • 1
    icon of addressArndale Court, Otley Road, Leeds, West Yorkshire
    Dissolved Corporate (2 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    CIF 7 - Ownership of shares – 75% or more → OE
  • 2
    WYG GROUP LIMITED - 2020-12-16
    icon of address3 Sovereign Square, Sovereign Street, Leeds, England
    Active Corporate (5 parents, 4 offsprings)
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 3 - Ownership of voting rights - 75% or more → OE
    CIF 3 - Right to appoint or remove directors → OE
    CIF 3 - Ownership of shares – 75% or more → OE
  • 3
    icon of address3 Sovereign Square, Sovereign Street, Leeds, England
    Dissolved Corporate (4 parents)
    Equity (Company account)
    546 GBP2019-06-30
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    CIF 1 - Ownership of voting rights - 75% or more → OE
  • 4
    EVER 1162 LIMITED - 2000-05-02
    icon of address3 Sovereign Square, Sovereign Street, Leeds, England
    Active Corporate (2 parents)
    Equity (Company account)
    1 GBP2024-09-30
    Person with significant control
    icon of calendar 2016-04-06 ~ now
    CIF 2 - Ownership of shares – 75% or more → OE
  • 5
    icon of addressArndale Centre, Otley Road, Leeds
    Dissolved Corporate (2 parents)
    Person with significant control
    icon of calendar 2016-04-06 ~ dissolved
    CIF 6 - Ownership of shares – 75% or more → OE
  • 6
    icon of address3 Sovereign Square, Sovereign Street, Leeds, England
    Active Corporate (2 parents)
    Equity (Company account)
    1 GBP2024-09-30
    Person with significant control
    icon of calendar 2016-11-09 ~ now
    CIF 4 - Right to appoint or remove directors → OE
    CIF 4 - Ownership of voting rights - 75% or more → OE
    CIF 4 - Ownership of shares – 75% or more → OE
Ceased 1
  • WYG ADVISORY LIMITED - 2025-07-07
    icon of address101 Park Drive, Milton Park, Abingdon, Oxfordshire, England
    Active Corporate (4 parents)
    Equity (Company account)
    1 GBP2024-09-30
    Person with significant control
    icon of calendar 2017-04-03 ~ 2025-07-03
    CIF 5 - Ownership of shares – 75% or more → OE
    CIF 5 - Ownership of voting rights - 75% or more → OE
    CIF 5 - Right to appoint or remove directors → OE

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