Company lists · Data refreshed September 2026
Top 25 Water resource management firms based in New Zealand
RevenueBase identified 48 water resource management firms headquartered in New Zealand as of September 2026 and tracks 1,346 professional contacts across them, including 577 with verified work emails. Auckland is the largest hub.
This list covers water resource management firms headquartered in New Zealand, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest water resource management firms based in New Zealand
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 568 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 277 contacts → | ||||
Indirect evidence “PDP is one of Aotearoa New Zealand’s leading environmental science, engineering, and advisory consultancies.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 77 contacts → | ||||
Strong evidence “Fraser Thomas is a Multi-Disciplinary, client focused consulting firm specialising in resource management, engineering and surveying.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 44 contacts → | ||||
Strong evidence “Water is the most precious resource on earth.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 40 contacts → | ||||
Partial evidence “Damwatch is a highly respected niche consultancy business based in Wellington, New Zealand and provide services to hydropower, water and irrigation clients internationally.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 37 contacts → | ||||
Indirect evidence “Awa Environmental is shaping stormwater to reduce flood risk, protect critical assets and infrastructure, and build resilient communities and thriving ecosystems.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 26 contacts → | ||||
Partial evidence “Trusted, Innovative, Water Solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 25 contacts → | ||||
Partial evidence “At Stormwater360, we are at the forefront of stormwater management innovation.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 24 contacts → | ||||
Strong evidence “Aqualinc Research Limited is an independent provider of research-based consulting services for water and land management.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 20 contacts → | ||||
Indirect evidence “In early 2015, Tektus was formed to create a distinct multi-disciplinary practice with strong values.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 contacts → | ||||
Partial evidence “Williamson Water & Land Advisory (WWLA) is a New Zealand based, employee owned, niche environmental consultancy.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 contacts → | ||||
Partial evidence “Irricon Resource Solutions is a leading environmental consultancy based throughout Canterbury, Otago and the North Island.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 13 contacts → | ||||
Strong evidence “Stradegy is a Hawke's Bay-based environmental planning and resource management consultancy providing expert planning and environmental services to local government and private…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 12 contacts → | ||||
Partial evidence “HAL Consulting Ltd (HAL) is a niche engineering consultancy that specialises in wastewater, stormwater and water supply network modelling and strategic planning, and data…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 11 contacts → | ||||
Strong evidence “Te Miro Water provides advisory services in the green infrastructure, stormwater and flood risk management industries.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 10 contacts → | ||||
Indirect evidence “Specialist engineering consulting firm with expertise in hydraulic modelling of rivers and streams, river engineering, geomorphology, hydrology and hydrologic modelling, remote…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 9 contacts → | ||||
Partial evidence “Traverse Environmental is a professional services consultancy specialising in planning, freshwater science and project management.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 9 contacts → | ||||
Partial evidence “e2Environmental is a highly experienced, full service civil engineering consultancy specialising in water engineering and land development.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 9 contacts → | ||||
Strong evidence “We offer Consulting Services in the following fields: Civil & Environmental Engineering, Structural Engineering, Land Surveying and Resource Management Planning.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Strong evidence “Smart Alliances delivers inter-disciplinary engineering, resource management and architecture solutions for their clients - from simple compliance certification to fully…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 8 contacts → | ||||
Indirect evidence “At VISION we pride ourselves on delivering high quality solutions for environmental, engineering and planning challenges.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 7 contacts → | ||||
Indirect evidence “We are a forward-thinking consultancy driven by our passion for pioneering design concepts and advancing sustainable solutions.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 5 contacts → | ||||
Partial evidence “Hydroflux is a sustainability driven organisation delivering unrivalled engineering, scientific and technological solutions for a more secure future, with a focus on water…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Strong evidence “With mounting pressure on our water resources from land use intensification, population growth and climate change, the need for innovative, inclusive and holistic water management…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 contacts → | ||||
Indirect evidence “Neuflow Projects are a team of project specialists encompassing innovative conceptual planning, investigations and feasibility studies, preliminary designs, detailed designs…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: water resource management firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names water resource management firms.
- Partial evidence
- Its own public description names part of water resource management firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name water resource management firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 48 water resource management firms based in New Zealand
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Water resource management firms based in New Zealand at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for New Zealand, so it is reported there. Company counts and contact totals on this page are exact for New Zealand, over 48 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among water resource management firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in New Zealand whose own description of what they do matches “water resource management firms”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names water resource management firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among water resource management firms, and records with no verified work email. Companies headquartered outside New Zealand are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 577 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names water resource management firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many water resource management firms are there based in New Zealand?
RevenueBase identified 48 water resource management firms headquartered in New Zealand as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Opus International Consultants Limited, headquartered in Wellington, tops this list with the largest team on record.
Which city has the most water resource management firms?
Auckland leads with 13 headquartered companies, followed by Christchurch (7) and Palmerston North (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 577 verified decision-maker contacts tracked across these 48 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 48 water resource management firms based in New Zealand. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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