Ecl Group Limited

Active03108396 Private limited company

Incorporated: 29 September 1995 (31 years)
Industry: Support activities for petroleum and natural gas extraction (09100)
Activities of head offices (70100)
Directors: Richard Alan Lemmon
Owned by: R P S Group Limited
Accounts type: Dormant
Region: South East
Address: 101 Park Drive
Milton Park
Abingdon
OX14 4RY

Filing status

Accounts due: 30 June 2027
Last accounts: 30 September 2025
Conf. stmt due: 13 October 2027
Last conf. stmt: 29 September 2026

Officers 2 active

Officer details are public data from the Companies House register.

Director · Appointed 2 November 2023

Also at Tetra Tech Occupational Health Limited, RPS Ireland Limited, Tetra Tech Europe Executive Services Limited · more companies

American

Born August 1959 (67)

Murdoch, Andrew James

Secretary · Appointed 6 October 2023

Officer history (33 former)

19 November 2024

Resigned Lovell, James David as Director

2 November 2023

Resigned Brownlie, William as Director

2 November 2023

Appointed Lovell, James David as Director

2 November 2023

Appointed Lemmon, Richard Alan as Director

2 November 2023

Resigned Gillespie, Andrew James as Director

6 October 2023

Appointed Murdoch, Andrew James as Secretary

6 October 2023

Resigned Hopson Iii, Preston as Secretary

28 February 2023

Appointed Gillespie, Andrew James as Director

28 February 2023

Appointed Brownlie, William as Director

28 February 2023

Resigned Atterbury, Karen Lorraine as Secretary

28 February 2023

Resigned Atterbury, Karen Lorraine as Director

28 February 2023

Resigned Cottrell, Judith as Director

28 February 2023

Appointed Hopson Iii, Preston as Secretary

9 May 2022

Appointed Atterbury, Karen Lorraine as Secretary

9 May 2022

Appointed Atterbury, Karen Lorraine as Director

4 February 2022

Resigned Gormley, David Joseph as Director

4 February 2022

Resigned Gormley, David Joseph as Secretary

30 April 2020

Appointed Cottrell, Judith as Director

30 April 2020

Resigned Young, Gary Richard as Director

4 December 2018

Appointed Gormley, David Joseph as Director

4 December 2018

Resigned Rowe, Nicholas as Director

4 December 2018

Resigned Rowe, Nicholas as Secretary

4 December 2018

Appointed Gormley, David Joseph as Secretary

1 September 2017

Appointed Rowe, Nicholas as Director

31 August 2017

Resigned Hearne, Alan Stephen, Dr as Director

3 October 2016

Appointed Hearne, Alan Stephen, Dr as Director

30 September 2016

Resigned Williams, John Philip, Dr as Director

1 August 2016

Resigned Russell, Julian Clive Alan as Director

19 March 2010

Resigned Dick, Robert Tennant as Director

25 September 2008

Appointed Rowe, Nicholas as Secretary

25 September 2008

Resigned Rigby, April as Secretary

28 September 2007

Resigned Soulsby, Alan as Director

30 June 2006

Resigned Abdullah, Abdullah Abdul-Rahman, Dr as Director

15 September 2005

Resigned Larkin, William as Secretary

14 September 2005

Appointed Young, Gary Richard as Director

14 September 2005

Appointed Williams, John Philip, Dr as Director

14 September 2005

Appointed Rigby, April as Secretary

31 January 2004

Resigned Bell, John Robert as Director

17 January 2003

Resigned Kaye, Lindsay Neil as Director

1 October 2002

Appointed Larkin, William as Secretary

30 September 2002

Resigned Wilding, Diane Jane as Secretary

4 April 2002

Appointed Bell, John Robert as Director

15 March 2002

Resigned Wilding, Diane Jane as Director

1 June 2001

Resigned Mesheia, Yousef Abdulaziz as Director

20 March 2001

Appointed Dick, Robert Tennant as Director

20 March 2001

Resigned Miller, Paul Robert as Director

16 February 2001

Resigned Robinson, Keith Marshall as Secretary

16 February 2001

Appointed Wilding, Diane Jane as Secretary

15 August 2000

Appointed Abdullah, Abdullah Abdul-Rahman, Dr as Director

2 December 1999

Appointed Wilding, Diane Jane as Director

31 October 1999

Resigned Burshan, Hakkim as Director

29 March 1999

Resigned Joyce, Roger Anthony as Director

8 October 1998

Appointed Miller, Paul Robert as Director

15 September 1997

Appointed Soulsby, Alan as Director

31 January 1997

Resigned Thornton, Jeremy Dean as Director

7 February 1996

Appointed Kaye, Lindsay Neil as Director

7 February 1996

Appointed Mesheia, Yousef Abdulaziz as Director

7 February 1996

Appointed Burshan, Hakkim as Director

6 February 1996

Appointed Joyce, Roger Anthony as Director

8 January 1996

Appointed Thornton, Jeremy Dean as Director

8 January 1996

Appointed Robinson, Keith Marshall as Secretary

8 January 1996

Appointed Russell, Julian Clive Alan as Director

8 January 1996

Resigned York Place Company Secretaries Limited as Corporate Nominee Secretary

8 January 1996

Resigned York Place Company Nominees Limited as Corporate Nominee Director

8 January 1996

Resigned York Place Company Secretaries Limited as Corporate Nominee Director

29 September 1995

Appointed York Place Company Secretaries Limited as Corporate Nominee Secretary

29 September 1995

Appointed York Place Company Nominees Limited as Corporate Nominee Director

29 September 1995

Appointed York Place Company Secretaries Limited as Corporate Nominee Director

Ownership 1 active

People and entities with significant control, from the Companies House PSC register

R P S Group Limited

Corporate entity · Notified 6 April 2016

Owns 75–100% of shares

Holds 75–100% of voting rights

Right to appoint and remove directors

100% Shareholder

Reg. no. 2087786

Group structure 31 shown

Ownership group derived from the Companies House PSC register

Tetra Tech UK Holdings Limited

R P S Group Limited Owns 75–100% of shares

Ecl Group Limited This company Owns 75–100% of shares

Exploration Consultants Limited Owns 75–100% of shares

RPS Trustees Limited Status not confirmedOwns 75–100% of shares

Tetra Tech Consulting Limited Owns 75–100% of shares

RPS Consultants Limited Status not confirmedOwns 75–100% of shares

RPS Ireland Limited Owns 75–100% of shares

Tetra Tech Occupational Health Limited Owns 75–100% of shares

Tetra Tech Environmental Management Limited Owns 75–100% of shares

Tetra Tech RPS Energy Consultants Limited Owns 75–100% of shares

Tetra Tech RPS Energy Limited Owns 75–100% of shares

Nautilus Limited In liquidationOwns 75–100% of shares

Reservoir Imaging Limited Status not confirmedOwns 75–100% of shares

Tetra Tech Europe Executive Services Limited Owns 75–100% of shares

Tetra Tech UK Consulting Group Limited Owns 75–100% of shares

Tetra Tech Group Limited Owns 75–100% of shares

Tetra Tech Environment Planning Transport Limited Owns 75–100% of shares

Tetra Tech Limited Owns 75–100% of shares

Tetra Tech Management Services Limited Owns 75–100% of shares

White Young Green International Limited Status not confirmedOwns 75–100% of shares

Wyg Consulting Limited Status not confirmedOwns 75–100% of shares

Tetra Tech UK Limited Owns 75–100% of shares

Coffey Geotechnics Limited Owns 75–100% of shares

Hoare Lea LLP Holds 75–100% of voting rights

Hoare Lea Holdings Limited Owns 75–100% of shares

Ndy Consulting Limited Owns 75–100% of shares

Piteau Associates UK Limited Owns 75–100% of shares

Tetra Tech International Development Europe Limited Owns 75–100% of shares

Tetra Tech International Development Limited Owns 75–100% of shares

Tetra Tech International Development Projects Limited Owns 75–100% of shares

Filings

Recent filings only. See the full history on Companies House

Date	Description	Made Up To
6 July 2026	Accounts for a dormant company	30 September 2025
16 April 2026	Change of details for a person with significant control
19 November 2025	Director's details changed
29 September 2025	Confirmation statement with no updates	29 September 2025
19 June 2025	Accounts for a small company	30 September 2024