Company lists · Data refreshed September 2026

Top 20 Hydrology consulting firms based in New Zealand

Name: Hydrology consulting firms based in New Zealand
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 28 companies tracked

RevenueBase identified 28 hydrology consulting firms headquartered in New Zealand as of September 2026 and tracks 226 professional contacts across them, including 158 with verified work emails and 8 with mobile numbers. Auckland is the largest hub.

This list covers hydrology consulting 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

28Companies

226Contacts tracked

158Verified emails

8Mobile numbers

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The 20 largest hydrology consulting firms based in New Zealand

Ranked by team size

Top 20 of 28 hydrology consulting firms based in New Zealand, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hydrology consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Damwatch Engineering LTDIndirect evidence	New ZealandHQ checked Sep 3, 2026	11-50	40
	“Damwatch is a highly respected niche consultancy business based in Wellington, New Zealand and provide services to hydropower, water and irrigation clients internationally.” Source: company website · checked Sep 3, 2026
2	AWA EnvironmentalIndirect evidence	Wellington, New ZealandHQ checked Sep 3, 2026	11-50	37
	“Awa Environmental is shaping stormwater to reduce flood risk, protect critical assets and infrastructure, and build resilient communities and thriving ecosystems.” Source: company website · checked Sep 3, 2026
3	Aqualinc Research LimitedPartial evidence	Christchurch, New ZealandHQ checked Sep 3, 2026	11-50	29
	“Aqualinc Research Limited is an independent provider of research-based consulting services for water and land management.” Source: company website · checked Sep 3, 2026
4	Williamson Water & Land AdvisoryIndirect evidence	Kumeu, New ZealandHQ checked Sep 3, 2026	11-50	16
	“Williamson Water & Land Advisory (WWLA) is a New Zealand based, employee owned, niche environmental consultancy.” Source: company website · checked Sep 3, 2026
5	IrriconIndirect evidence	Timaru South, New ZealandHQ checked Sep 3, 2026	11-50	15
	“Irricon Resource Solutions is a leading environmental consultancy based throughout Canterbury, Otago and the North Island.” Source: company website · checked Sep 3, 2026
6	StradegyIndirect evidence	New ZealandHQ checked Sep 3, 2026	11-50	13
	“Stradegy is a specialist planning consultancy with a team of 10 experienced Planners in Hawkes Bay.” Source: company website · checked Sep 3, 2026
7	HAL Consulting LTDPartial evidence	Parnell, New ZealandHQ checked Sep 3, 2026	11-50	12
	“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: company website · checked Sep 3, 2026
8	TE Miro Water ConsultantsIndirect evidence	New ZealandHQ checked Sep 3, 2026	1-10	11
	“Te Miro Water provides advisory services in the green infrastructure, stormwater and flood risk management industries.” Source: company website · checked Sep 3, 2026
9	Traverse Environmental LimitedIndirect evidence	Taupo, New ZealandHQ checked Sep 3, 2026	11-50	9
	“Traverse Environmental is a professional services consultancy specialising in planning, freshwater science and project management.” Source: company website · checked Sep 3, 2026
10	Submergent LimitedIndirect evidence	Auckland, New ZealandHQ checked Sep 3, 2026	1-10	6
	“Submergent Limited provides computer modelling services to the New Zealand water engineering industry.” Source: company website · checked Sep 3, 2026
11	Kōmanawa Solutions LTDIndirect evidence	Christchurch, New ZealandHQ checked Sep 3, 2026	1-10	5
	“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: company website · checked Sep 3, 2026
12	Streamlined Environmental LTDIndirect evidence	New ZealandHQ checked Sep 3, 2026	1-10	3
	“Streamlined Environmental Ltd offers advice on all aspects of fresh and estuarine waters throughout New Zealand.” Source: company website · checked Sep 3, 2026
13	SCO ConsultingIndirect evidence	Auckland, New ZealandHQ checked Sep 3, 2026	1-10	2
	“Helping you deliver sustainable community outcomes for water, stormwater and wastewater systems and the environments they operate within.” Source: company website · checked Sep 3, 2026
14	Benviro A Babbage CompanyIndirect evidence	Hamilton, New ZealandHQ checked Sep 3, 2026	1-10	2
	“We are BEnvironmental Limited (BEnviro)!” Source: company website · checked Sep 3, 2026
15	Project LAB NZ LimitedIndirect evidence	Auckland, New ZealandHQ checked Sep 3, 2026	1-10	2
	“Project Lab is an engineering consultancy delivering water, civil and environmental projects.” Source: company website · checked Sep 3, 2026
16	Envirolink LTDIndirect evidence	Mapua, New ZealandHQ checked Sep 3, 2026	1-10	2
	“Consultancy services with technical expertise in water resource management, environmental management, contaminated land, and 3 waters engineering” Source: company website · checked Sep 3, 2026
17	Smith HydroPartial evidence	Christchurch, New ZealandHQ checked Sep 3, 2026	1-10	1
	“Smith Hydro is an independent, New Zealand owned consultancy with expertise in catchment hydrology, environmental monitoring, geospatial data collection and analysis, in addition…” Source: company website · checked Sep 3, 2026
18	Endeavour ConsultingIndirect evidence	Auckland, New ZealandHQ checked Sep 3, 2026	1-10	1
	“Endeavour are specialist hydraulic consultants.” Source: company website · checked Sep 3, 2026
19	Earth & Environmental Science LTDIndirect evidence	Lincoln, New ZealandHQ checked Sep 3, 2026	1-10	1
	“Earth & Environmental Science offers a range of technical, project management, and communication services.” Source: company website · checked Sep 3, 2026
20	Aquanet ConsultingIndirect evidence	Palmerston North, New ZealandHQ checked Sep 3, 2026	n/a	1
	Source: company website · checked Sep 3, 2026

Showing 20 of 28 hydrology consulting firms based in New Zealand

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Hydrology consulting firms based in New Zealand at a glance

As of Sep 3, 2026

1-10Median size (employees)

AucklandLargest hub · 7 HQs

8Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

Verified emails by last verification

0–30

31–60

61–90

90–180

180+

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 hydrology consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “hydrology consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hydrology consulting 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 an evidence 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, 158 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 3, 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

How many hydrology consulting firms are there based in New Zealand?

RevenueBase identified 28 hydrology consulting 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?

Damwatch Engineering LTD, headquartered in New Zealand, tops this list with the largest team on record.

Which city has the most hydrology consulting firms?

Auckland leads with 7 headquartered companies, followed by Christchurch (5) and Palmerston North (1).

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 158 verified decision-maker contacts tracked across these 28 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 3, 2026.

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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 SmartSearch, 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.