Company
Tetra Tech Management Services (Northern Ireland) Limited
Tetra Tech Management Services (Northern Ireland) Limited is an active UK company (number NI021970), incorporated 1988, with 1 current director, Andrew James Gillespie. Source: Companies House, updated 4th October 2026.
Official record Companies House · updated 4th October 2026 · Sources
Network
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Who leads it
Previous officers 21
- Benjamin Warwick Whitworth 2012-2019 View profile
- William Angus Biggerstaff 2010-2012 View profile
- Claire Christina White 2010-2011 View profile
- Graham Dudley Oliver 2009-2012 View profile
- David Charles Wilton 2009-2010 View profile
- Paul Christopher Hamer 2008-2010 View profile
- Robert Nolan 2008-2010 View profile
- John Ryan 2008-2009 View profile
- Raymond James Moore 2008-2010 View profile
- Peter Birthistle 2008-2010 View profile
- John George Purvis 2001-2007 View profile
- William Richard Brayson 2001-2004 View profile
- Robert Hartley 2001-2009 View profile
- Philip Charles George Downe 2001-2004 View profile
- John Michael Boyd 2001-2001 View profile
- John Raymond Peter Bennett 1988-2001 View profile
- Kevin T Cullen 1988-2001 View profile
- David Lawrence Hasson 2010-2012 View profile
- Caroline Louise Farbridge 2008-2010 View profile
- Denis Patrick Connery 2006-2008 View profile
- Robert Hartley 1988-2006 View profile
Directors and secretaries as filed at Companies House.
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About
- Incorporated
- 30/09/1988
Ownership
Owned by (1) iOwned byIndividuals and companies registered as having significant control over this company, from the Companies House PSC (persons with significant control) register. People whose ownership could not be confirmed to one individual are not listed as confirmed owners.
- Tetra Tech Management Services Limited
75-100% shares · notified 2016-04-06
Group
- Tetra Tech Management Services (Northern Ireland) Limited
is controlled by Tetra Tech Management Services Limited
Evidence
active 75-100% shares · notified 2016-04-06 · source: Companies House PSC register - Tetra Tech Management Services Limited
is controlled by Tetra Tech Group Limited
Evidence
active 75-100% shares, 75-100% voting · notified 2016-04-06 · source: Companies House PSC register - Tetra Tech Group Limited
is controlled by Tetra Tech UK Consulting Group Limited
Evidence
active 75-100% shares, 75-100% voting, appoints directors · notified 2016-04-06 · source: Companies House PSC register - Tetra Tech UK Consulting Group Limited
is controlled by Tetra Tech UK Holdings Limited
Evidence
active 75-100% shares, 75-100% voting, appoints directors · notified 2019-07-09 · source: Companies House PSC register
Ultimately controlled by Tetra Tech UK Holdings Limited.
74 other companies in this group
- RPS Trustees Limited
- ECL Technology Limited
- NI020346
- ECL Resources Management, Limited
- R P S Group Limited
- Energy Innovations Limited
- Coffey Geotechnics Limited
- 06596951
- Tetra Tech RPS Energy Limited
- Emulous Limited
- Tetra Tech Consulting Limited
- Trench Farrow Limited
- Tetra Tech Europe Executive Services Limited
- Nuclear Decommissioning Limited
- Tetra Tech Environment Planning Transport Limited
- RPS Laboratories Limited
- Tetra Tech Environmental and Planning (Northern Ireland) Limited
- Hoare LEA Holdings Limited
- Isochrone Holdings Limited
- RPS Ireland Limited
- Hydrosearch Associates Limited
- Waste Management Research Limited
- Tetra Tech RPS Energy Consultants Limited
- 05111508
- FMW Consultancy LTD
- Signet Planning Limited
- Tetra Tech Consulting (NI) Limited
- Utility Technical Services Limited
- Geocon Group Services Limited
- Tetra Tech Limited
- 07092778
- North Associates (Cumbria) Limited
- Tetra Tech UK Limited
- RPS Group US Holdings Limited
- Geophysical Safety Resources Limited
- Tetra Tech Management Services Limited
- Tetra Tech Environmental Management Limited
- Hoare LEA Europe Limited
- Piteau Associates UK Limited
- Nautilus (Seaa) Limited
- R W Gregory Limited
- Nautilus Limited
- RPS Consultants Limited
- RPS Planning & Development Limited
- Arcadis Tetra Tech 1 Limited
- Tetra Tech International Development Europe Limited
- 06596966
- Tetra Tech Group Limited
- Basicshare Limited
- RPS Finance AAP Limited
Ownership paths are calculated from Companies House persons-with-significant-control filings. Each step shows the filed nature of control and dates; a step marked "ceased" is historical, not current.
Board analysis
Board DNA
How this board is put together, from the Companies House officer record and Charity Commission trustee records - deterministic, no AI.iBoard compositionCounted from the dated Companies House officer record: the current directors only, past directors excluded.
1 directors on the board
- Andrew James Gillespie Director · appointed 2011
Directors past 6 years
- Andrew James Gillespie Director · appointed 2011
Where else this board sits iWhere else this board sitsThe charitable fields these directors govern in elsewhere, by Charity Commission classification. Excludes this company and any charity it is the legal face of.
The sectors these directors govern in elsewhere. This company, and any charity it is the legal face of, are excluded - counting them would just tell you what you are already looking at.
Gaps to watch
- A single director - no second pair of eyes on any decision
Where to look Suggested search: a second director to remove single-point control.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- NI021970
- Status
- Active
- Type
- Private Limited Company
- Edition
- Register edition compiled 4th October 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
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