Company · Truro
NSI Water and Wastewater Solutions LTD
Water collection, treatment and supply
Official record Companies House · updated 27th September 2026 · Sources
Network
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Who leads it
Previous officers 8
- Jeremy George Kirk 2013-2013 View profile
- Brian Lee Scheffe 2012-2013 View profile
- Christopher John Hunt 2011-2013 View profile
- Simon Peter Robert Kearsley 2005-2013 View profile
- Philip John Badger 2003-2013 View profile
- Timothy James Cunliffe 2003-2023 View profile
- Timothy Patrick Sullivan 2003-2013 View profile
- Lynda Jayne Filmer 2003-2013 View profile
Directors and secretaries as filed at Companies House.
Do you help lead this organisation? Set up its network · How it works
Public contracts won
1 contract · £1,200,000 totalFrom Contracts Finder and Find a Tender, the UK Government's public procurement notices, under the Open Government Licence v3.0. Matched to this organisation by company number, charity number or exact name and postcode; every figure links to its source notice.
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Lithium Trace Testing
The Bioresource and Energy Services team require non-intrusive tank capacity and sediment assessments of Anaerobic Digesters using Lithium chloride as a trace element to comply with Environmental Permitting (England & Wales) Regulations 201…
Framework
About
- What it does
- Water collection, treatment and supply; Sewerage; Construction of water projects; Environmental consulting activities
- Incorporated
- 03/06/2003
- Registered office
- Truro
- Previous names
- NSI Water and Waste Water Solutions LTD (until 17/07/2024)
Nijhuis H2OK Limited (until 20/04/2024)
H2 OK Systems Limited (until 19/12/2013)
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.
- Nijhuis Saur Industries UK & Ireland Limited
75-100% shares, 75-100% voting, appoints directors · notified 2024-01-09
Group
- NSI Water and Wastewater Solutions LTD
is controlled by Nijhuis Saur Industries UK & Ireland Limited
Evidence
active 75-100% shares, 75-100% voting, appoints directors · notified 2024-01-09 · source: Companies House PSC register
Ultimately controlled by Nijhuis Saur Industries UK & Ireland Limited.
3 other companies in this group
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.
3 directors on the board
- Antonie Ruijtenberg Director · appointed 2013
- Menno-Martijn Holterman Director · appointed 2013
- Ian Mark Stentiford Director · appointed 2019
Directors past 6 years
- Antonie Ruijtenberg Director · appointed 2013
- Menno-Martijn Holterman Director · appointed 2013
- Ian Mark Stentiford Director · appointed 2019
First-time vs portfolio directors
Portfolio (3)
- Antonie Ruijtenberg Director · appointed 2013
- Menno-Martijn Holterman Director · appointed 2013
- Ian Mark Stentiford Director · appointed 2019
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
- Several long-serving directors could step down together
Where to look Suggested search: succession planning for long-tenured seats.
Sources
Official record from Companies House. Governance Register calculates the connections.
Record details
- Company number
- 04785670
- Status
- Active
- Type
- Private Limited Company
- Accounts next due
- 31/12/2026
- Edition
- Register edition compiled 27th September 2026
- Labels
- Official record from Companies House · Calculated derived by Governance Register.
Contains public sector information licensed under the Open Government Licence v3.0. Report an issue · How we handle data