TT

TETRA TECH LIMITED

Active

Company number 01959704

Leeds, England · Incorporated 15 November 1985

3 Sovereign Square, Sovereign Street, Leeds, LS1 4ER, England

Last updated on 13 September 2026

Other engineering activities · SIC 71129

Status
Active
Company age
40 years
Company type
Private limited
Accounts
Up to date
Total raised
—
Shares allotted
0
Latest round
8 April 2021

Company history

Previous company names

BROXMILL LIMITED · 15 November 1985 – 20 December 1985

WHITE YOUNG LIMITED · 20 December 1985 – 7 February 1986

WHITE YOUNG CONSULTING GROUP LIMITED · 7 February 1986 – 5 January 1998

WHITE YOUNG GREEN CONSULTING LIMITED · 5 January 1998 – 1 July 2008

WYG ENGINEERING LIMITED · 1 July 2008 – 30 December 2020

Company overview

No company summary available yet.

Compliance

Annual accounts Up to date
Last filed
28 September 2025
Next due
30 June 2027
10 months left
Confirmation statement Up to date
Last filed
15 November 2025
Next due
29 November 2026
3 months left

Financial snapshot

Last accounts type
Full
Period end
28 September 2025

Detailed figures (assets, liabilities, net worth) are available in the full credit report.

Officers

No officers on record.

Persons with significant control

PS
Tetra Tech Group Limited
Ownership Of Shares 75 To 100 Percent
6 April 2016

Funding

4 funding rounds
8 April 2021
Shares allotted · 0 shares allotted
—
5 January 2021
Shares allotted · 0 shares allotted
—
9 November 2020
Shares allotted · 0 shares allotted
—
24 September 2020
Shares allotted · 0 shares allotted
—
Total (4 rounds, 0 shares)
—

Filing history

Accounts With Accounts Type Full
Accounts
6 July 2026 View
Mortgage Satisfy Charge Full
Mortgage
14 May 2026 View
Confirmation Statement With No Updates
Confirmation Statement
21 November 2025 View
Accounts With Accounts Type Full
Accounts
1 July 2025 View
Appoint Person Secretary Company With Name Date
Officers
15 April 2025 View
Termination Secretary Company With Name Termination Date
Officers
15 April 2025 View
Confirmation Statement With No Updates
Confirmation Statement
26 November 2024 View
Accounts With Accounts Type Full
Accounts
5 July 2024 View
Confirmation Statement With No Updates
Confirmation Statement
29 November 2023 View
Accounts With Accounts Type Full
Accounts
7 July 2023 View
Confirmation Statement With No Updates
Confirmation Statement
5 December 2022 View
Accounts With Accounts Type Full
Accounts
12 August 2022 View
Confirmation Statement With Updates
Confirmation Statement
26 November 2021 View
Accounts With Accounts Type Full
Accounts
8 October 2021 View
Resolution
Resolution
21 April 2021 View
Legacy
Insolvency
21 April 2021 View
Legacy
Capital
21 April 2021 View
Capital Statement Capital Company With Date Currency Figure
Capital
21 April 2021 View
Capital Allotment Shares
Capital
8 April 2021 View
Change To A Person With Significant Control
Persons With Significant Control
17 March 2021 View
Resolution
Resolution
22 January 2021 View
Legacy
Insolvency
22 January 2021 View
Capital Statement Capital Company With Date Currency Figure
Capital
22 January 2021 View
Legacy
Capital
22 January 2021 View
Capital Allotment Shares
Capital
7 January 2021 View
Change Of Name Notice
Change Of Name
30 December 2020 View
Resolution
Resolution
30 December 2020 View
Confirmation Statement With No Updates
Confirmation Statement
24 December 2020 View
Capital Statement Capital Company With Date Currency Figure
Capital
20 November 2020 View
Legacy
Insolvency
20 November 2020 View
Resolution
Resolution
20 November 2020 View
Legacy
Capital
20 November 2020 View
Change Person Director Company With Change Date
Officers
10 November 2020 View
Capital Allotment Shares
Capital
10 November 2020 View
Appoint Person Director Company With Name Date
Officers
22 October 2020 View
Termination Director Company With Name Termination Date
Officers
22 October 2020 View
Legacy
Capital
1 October 2020 View
Capital Statement Capital Company With Date Currency Figure
Capital
1 October 2020 View
Legacy
Insolvency
1 October 2020 View
Resolution
Resolution
1 October 2020 View
Capital Allotment Shares
Capital
24 September 2020 View
Accounts With Accounts Type Full
Accounts
2 January 2020 View
Confirmation Statement With Updates
Confirmation Statement
15 November 2019 View
Termination Secretary Company With Name Termination Date
Officers
31 October 2019 View
Termination Director Company With Name Termination Date
Officers
31 October 2019 View
Appoint Person Director Company With Name Date
Officers
30 October 2019 View
Change To A Person With Significant Control
Persons With Significant Control
18 September 2019 View
Change Person Director Company With Change Date
Officers
4 September 2019 View
Change Registered Office Address Company With Date Old Address New Address
Address
6 August 2019 View
Change Registered Office Address Company With Date Old Address New Address
Address
6 August 2019 View
Change Account Reference Date Company Current Extended
Accounts
10 July 2019 View
Accounts With Accounts Type Full
Accounts
4 January 2019 View
Confirmation Statement With Updates
Confirmation Statement
12 October 2018 View
Appoint Person Director Company With Name Date
Officers
9 August 2018 View
Second Filing Of Director Termination With Name
Officers
7 March 2018 View
Termination Director Company With Name Termination Date
Officers
18 January 2018 View
Accounts With Accounts Type Full
Accounts
6 November 2017 View
Confirmation Statement With Updates
Confirmation Statement
6 October 2017 View
Mortgage Create With Deed With Charge Number Charge Creation Date
Mortgage
25 September 2017 View
Termination Director Company With Name Termination Date
Officers
24 March 2017 View
Appoint Person Director Company With Name Date
Officers
2 March 2017 View
Accounts With Accounts Type Full
Accounts
6 January 2017 View
Termination Director Company With Name Termination Date
Officers
30 November 2016 View
Appoint Person Director Company With Name Date
Officers
30 November 2016 View
Confirmation Statement With Updates
Confirmation Statement
6 October 2016 View
Accounts With Accounts Type Full
Accounts
30 November 2015 View
Annual Return Company With Made Up Date Full List Shareholders
Annual Return
14 October 2015 View
Change Person Director Company With Change Date
Officers
14 October 2015 View
Accounts With Accounts Type Full
Accounts
11 December 2014 View
Annual Return Company With Made Up Date Full List Shareholders
Annual Return
29 October 2014 View
Mortgage Satisfy Charge Full
Mortgage
3 July 2014 View
Mortgage Satisfy Charge Full
Mortgage
3 July 2014 View
Mortgage Satisfy Charge Full
Mortgage
3 July 2014 View
Mortgage Satisfy Charge Full
Mortgage
3 July 2014 View
Termination Director Company With Name
Officers
10 April 2014 View
Appoint Person Director Company With Name
Officers
10 April 2014 View
Termination Director Company With Name
Officers
29 November 2013 View
Miscellaneous
Miscellaneous
21 November 2013 View
Auditors Resignation Company
Auditors
15 November 2013 View
Auditors Resignation Company
Auditors
7 November 2013 View
Auditors Resignation Company
Auditors
6 November 2013 View
Annual Return Company With Made Up Date Full List Shareholders
Annual Return
29 October 2013 View
Accounts With Accounts Type Full
Accounts
25 October 2013 View
Legacy
Mortgage
21 December 2012 View
Annual Return Company With Made Up Date Full List Shareholders
Annual Return
26 October 2012 View
Change Person Director Company With Change Date
Officers
26 October 2012 View
Change Person Director Company With Change Date
Officers
26 October 2012 View
Change Person Director Company With Change Date
Officers
26 October 2012 View
Change Person Secretary Company With Change Date
Officers
26 October 2012 View
Change Person Secretary Company With Change Date
Officers
26 October 2012 View
Accounts With Accounts Type Full
Accounts
12 July 2012 View
Termination Director Company With Name
Officers
22 May 2012 View
Termination Director Company With Name
Officers
15 March 2012 View
Appoint Person Director Company With Name
Officers
12 March 2012 View
Termination Director Company With Name
Officers
12 March 2012 View
Termination Director Company With Name
Officers
12 March 2012 View
Accounts With Accounts Type Full
Accounts
9 January 2012 View
Change Account Reference Date Company Previous Shortened
Accounts
3 January 2012 View
Annual Return Company With Made Up Date Full List Shareholders
Annual Return
25 October 2011 View
Appoint Person Secretary Company With Name
Officers
6 May 2011 View
Accounts With Accounts Type Full
Accounts
30 March 2011 View
Termination Director Company With Name
Officers
17 December 2010 View
Termination Director Company With Name
Officers
17 December 2010 View
Termination Director Company With Name
Officers
8 December 2010 View
Appoint Person Director Company With Name
Officers
8 December 2010 View
Appoint Person Director Company With Name
Officers
3 December 2010 View
Appoint Person Secretary Company With Name
Officers
29 November 2010 View
Termination Secretary Company With Name
Officers
29 October 2010 View
Appoint Person Director Company With Name
Officers
15 October 2010 View
Annual Return Company With Made Up Date Full List Shareholders
Annual Return
5 October 2010 View
Change Registered Office Address Company With Date Old Address
Address
14 May 2010 View
Appoint Person Director Company With Name
Officers
10 February 2010 View
Accounts With Accounts Type Full
Accounts
8 February 2010 View
Memorandum Articles
Incorporation
2 January 2010 View
Resolution
Resolution
2 January 2010 View
Termination Director Company With Name
Officers
7 December 2009 View
Annual Return Company With Made Up Date Full List Shareholders
Annual Return
19 October 2009 View
Change Person Director Company With Change Date
Officers
19 October 2009 View
Change Person Director Company With Change Date
Officers
19 October 2009 View
Change Person Director Company With Change Date
Officers
19 October 2009 View
Change Person Director Company With Change Date
Officers
19 October 2009 View
Change Person Director Company With Change Date
Officers
19 October 2009 View
Change Person Director Company With Change Date
Officers
19 October 2009 View
Legacy
Officers
3 August 2009 View
Legacy
Officers
14 April 2009 View
Legacy
Officers
2 April 2009 View
Legacy
Officers
23 March 2009 View
Legacy
Officers
23 March 2009 View
Legacy
Officers
11 February 2009 View
Legacy
Officers
7 January 2009 View
Legacy
Officers
6 January 2009 View
Accounts With Accounts Type Full
Accounts
23 December 2008 View
Memorandum Articles
Incorporation
4 December 2008 View
Legacy
Officers
25 November 2008 View
Legacy
Annual Return
17 November 2008 View
Legacy
Officers
13 November 2008 View
Legacy
Mortgage
11 October 2008 View
Legacy
Officers
10 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Legacy
Officers
1 July 2008 View
Certificate Change Of Name Company
Change Of Name
1 July 2008 View
Legacy
Officers
19 June 2008 View
Legacy
Officers
24 January 2008 View
Accounts With Accounts Type Full
Accounts
8 January 2008 View
Legacy
Officers
21 November 2007 View
Legacy
Officers
21 November 2007 View
Legacy
Officers
21 November 2007 View
Legacy
Officers
16 November 2007 View
Legacy
Officers
16 November 2007 View
Legacy
Annual Return
8 November 2007 View
Legacy
Officers
25 September 2007 View
Legacy
Officers
3 July 2007 View
Legacy
Mortgage
12 May 2007 View
Resolution
Resolution
29 March 2007 View
Legacy
Officers
10 January 2007 View
Legacy
Officers
10 January 2007 View
Legacy
Officers
10 January 2007 View
Accounts With Accounts Type Full
Accounts
7 January 2007 View
Legacy
Mortgage
21 December 2006 View
Legacy
Annual Return
14 December 2006 View
Legacy
Officers
14 December 2006 View
Legacy
Officers
14 December 2006 View
Legacy
Officers
14 December 2006 View
Legacy
Officers
28 November 2006 View
Legacy
Officers
28 November 2006 View
Legacy
Officers
28 November 2006 View
Legacy
Officers
13 September 2006 View
Legacy
Officers
13 September 2006 View
Legacy
Officers
13 September 2006 View
Legacy
Officers
5 September 2006 View
Legacy
Officers
5 September 2006 View
Legacy
Mortgage
21 August 2006 View
Accounts With Accounts Type Full
Accounts
11 April 2006 View
Legacy
Annual Return
22 November 2005 View
Legacy
Officers
12 August 2005 View
Legacy
Officers
11 August 2005 View
Legacy
Officers
11 August 2005 View
Accounts With Accounts Type Full
Accounts
3 May 2005 View
Legacy
Officers
26 January 2005 View
Legacy
Officers
26 January 2005 View
Legacy
Officers
29 November 2004 View
Legacy
Officers
11 November 2004 View
Legacy
Officers
11 November 2004 View
Legacy
Annual Return
11 November 2004 View
Legacy
Officers
13 September 2004 View
Legacy
Officers
2 September 2004 View
Legacy
Officers
2 September 2004 View
Legacy
Officers
2 September 2004 View
Accounts With Accounts Type Full
Accounts
6 March 2004 View
Legacy
Officers
12 February 2004 View
Legacy
Officers
8 February 2004 View
Legacy
Officers
25 January 2004 View
Legacy
Officers
22 January 2004 View
Legacy
Officers
10 November 2003 View
Legacy
Annual Return
10 November 2003 View
Legacy
Officers
17 September 2003 View
Memorandum Articles
Incorporation
16 August 2003 View
Resolution
Resolution
16 August 2003 View
Resolution
Resolution
16 August 2003 View
Legacy
Officers
14 July 2003 View
Accounts With Accounts Type Full
Accounts
1 May 2003 View
Auditors Resignation Company
Auditors
7 February 2003 View
Memorandum Articles
Incorporation
30 November 2002 View
Legacy
Officers
1 November 2002 View
Legacy
Officers
1 November 2002 View
Legacy
Annual Return
1 November 2002 View
Legacy
Officers
31 October 2002 View
Legacy
Officers
31 October 2002 View
Legacy
Officers
19 August 2002 View
Legacy
Capital
9 August 2002 View
Legacy
Officers
12 June 2002 View
Legacy
Officers
12 June 2002 View
Legacy
Officers
7 June 2002 View
Legacy
Capital
18 March 2002 View
Accounts With Accounts Type Full
Accounts
8 February 2002 View
Legacy
Capital
11 January 2002 View
Legacy
Capital
11 January 2002 View
Legacy
Annual Return
12 December 2001 View
Legacy
Officers
12 December 2001 View
Legacy
Officers
4 December 2001 View
Legacy
Officers
26 November 2001 View
Legacy
Officers
26 November 2001 View
Legacy
Capital
12 November 2001 View
Legacy
Officers
31 July 2001 View
Legacy
Capital
4 July 2001 View
Legacy
Capital
4 July 2001 View
Accounts With Accounts Type Full
Accounts
30 April 2001 View
Legacy
Capital
26 April 2001 View
Legacy
Capital
23 January 2001 View
Legacy
Capital
20 December 2000 View
Legacy
Capital
20 December 2000 View
Legacy
Capital
20 December 2000 View
Legacy
Capital
20 December 2000 View
Legacy
Annual Return
6 November 2000 View
Legacy
Officers
25 October 2000 View
Legacy
Capital
11 February 2000 View
Legacy
Officers
9 February 2000 View
Legacy
Officers
28 January 2000 View
Accounts With Accounts Type Full Group
Accounts
19 December 1999 View
Legacy
Capital
26 November 1999 View
Legacy
Annual Return
21 October 1999 View
Legacy
Accounts
17 June 1999 View
Legacy
Officers
15 May 1999 View
Legacy
Officers
15 May 1999 View
Legacy
Officers
21 April 1999 View
Legacy
Mortgage
25 March 1999 View
Accounts With Accounts Type Full Group
Accounts
19 February 1999 View
Legacy
Annual Return
26 October 1998 View
Auditors Resignation Company
Auditors
22 July 1998 View
Legacy
Capital
22 June 1998 View
Legacy
Officers
8 June 1998 View
Legacy
Officers
25 February 1998 View
Legacy
Officers
18 February 1998 View
Certificate Change Of Name Company
Change Of Name
5 January 1998 View
Accounts With Accounts Type Full Group
Accounts
30 October 1997 View
Legacy
Annual Return
28 October 1997 View
Legacy
Officers
4 August 1997 View
Legacy
Officers
4 August 1997 View
Legacy
Officers
4 August 1997 View
Legacy
Officers
4 August 1997 View
Memorandum Articles
Incorporation
23 July 1997 View
Legacy
Officers
23 July 1997 View
Legacy
Officers
23 July 1997 View
Resolution
Resolution
22 July 1997 View
Legacy
Officers
15 January 1997 View
Legacy
Annual Return
28 October 1996 View
Accounts With Accounts Type Full Group
Accounts
10 September 1996 View
Accounts With Accounts Type Full Group
Accounts
2 November 1995 View
Legacy
Annual Return
25 October 1995 View
Legacy
Capital
31 March 1995 View
Resolution
Resolution
17 January 1995 View
Selection Of Mortgage Documents Registered Before January 1995
Historical
1 January 1995 View
Selection Of Documents Registered Before January 1995
Historical
1 January 1995 View
Legacy
Annual Return
24 October 1994 View
Accounts With Accounts Type Full Group
Accounts
2 August 1994 View
Legacy
Annual Return
25 October 1993 View
Accounts With Accounts Type Full Group
Accounts
6 September 1993 View
Legacy
Officers
14 July 1993 View
Memorandum Articles
Incorporation
22 June 1993 View
Resolution
Resolution
22 June 1993 View
Resolution
Resolution
22 June 1993 View
Resolution
Resolution
22 June 1993 View
Legacy
Officers
18 January 1993 View
Legacy
Officers
21 December 1992 View
Legacy
Officers
21 December 1992 View
Legacy
Officers
21 December 1992 View
Legacy
Annual Return
20 October 1992 View
Accounts With Accounts Type Full Group
Accounts
5 October 1992 View
Legacy
Officers
10 March 1992 View
Accounts With Accounts Type Full Group
Accounts
23 October 1991 View
Legacy
Annual Return
23 October 1991 View
Resolution
Resolution
22 October 1991 View
Resolution
Resolution
22 October 1991 View
Legacy
Officers
9 October 1991 View
Resolution
Resolution
4 October 1991 View
Legacy
Capital
4 October 1991 View
Memorandum Articles
Incorporation
20 June 1991 View
Resolution
Resolution
20 June 1991 View
Resolution
Resolution
20 June 1991 View
Legacy
Capital
12 June 1991 View
Resolution
Resolution
12 June 1991 View
Legacy
Capital
12 June 1991 View
Legacy
Capital
12 June 1991 View
Legacy
Officers
12 May 1991 View
Legacy
Officers
4 March 1991 View
Legacy
Capital
25 February 1991 View
Resolution
Resolution
25 February 1991 View
Statement Of Affairs
Miscellaneous
7 December 1990 View
Legacy
Capital
7 December 1990 View
Legacy
Capital
30 November 1990 View
Legacy
Capital
30 November 1990 View
Legacy
Capital
29 November 1990 View
Resolution
Resolution
27 November 1990 View
Memorandum Articles
Incorporation
27 November 1990 View
Resolution
Resolution
13 November 1990 View
Legacy
Capital
13 November 1990 View
Resolution
Resolution
13 November 1990 View
Legacy
Capital
13 November 1990 View
Resolution
Resolution
13 November 1990 View
Legacy
Capital
13 November 1990 View
Legacy
Capital
9 November 1990 View
Legacy
Capital
9 November 1990 View
Legacy
Capital
9 November 1990 View
Resolution
Resolution
6 November 1990 View
Legacy
Capital
6 November 1990 View
Legacy
Capital
6 November 1990 View
Legacy
Capital
6 November 1990 View
Legacy
Capital
6 November 1990 View
Resolution
Resolution
6 November 1990 View
Resolution
Resolution
6 November 1990 View
Resolution
Resolution
25 October 1990 View
Resolution
Resolution
25 October 1990 View
Legacy
Annual Return
25 October 1990 View
Legacy
Capital
25 October 1990 View
Legacy
Capital
25 October 1990 View
Resolution
Resolution
25 October 1990 View
Resolution
Resolution
25 October 1990 View
Accounts With Accounts Type Full Group
Accounts
17 October 1990 View
Resolution
Resolution
24 January 1990 View
Legacy
Capital
24 January 1990 View
Legacy
Annual Return
17 November 1989 View
Accounts With Accounts Type Full Group
Accounts
31 October 1989 View
Accounts With Accounts Type Full
Accounts
27 October 1988 View
Legacy
Annual Return
27 October 1988 View
Accounts With Accounts Type Full
Accounts
30 October 1987 View
Legacy
Annual Return
30 October 1987 View
Legacy
Capital
19 October 1987 View
Legacy
Officers
5 October 1987 View
Selection Of Documents Registered Before January 1987
Historical
1 January 1987 View
Legacy
Officers
25 June 1986 View
Legacy
Mortgage
12 March 1986 View
Legacy
Officers
26 February 1986 View
Certificate Change Of Name Company
Change Of Name
7 February 1986 View
Miscellaneous
Miscellaneous
8 January 1986 View
Certificate Change Of Name Company
Change Of Name
20 December 1985 View
Miscellaneous
Miscellaneous
15 November 1985 View

Risk at a glance

  • Company active
  • Accounts up to date
  • Confirmation statement up to date
  • No insolvency history
  • No registered charges
  • Credit score
  • Recommended limit
  • Payment risk

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