Company lists · Data refreshed September 2026

Top 25 Hydrogeology consulting firms based in New Zealand

RevenueBase identified 41 company matches for hydrogeology consulting firms associated with New Zealand as of September 2026 and tracks 573 professional contacts across them, including 323 with verified work emails. Auckland is the largest hub.

This list covers company matches for hydrogeology consulting firms associated with New Zealand, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 28, 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 RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
41Companies
573Contacts tracked
323Verified emails
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The 25 largest hydrogeology consulting firms based in New Zealand

Ranked by team size
Top 25 of 41 company matches for hydrogeology consulting firms based in New Zealand, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchChristchurch, New ZealandHQ recorded Sep 28, 202651-200121 contacts →

Exact match

“ENGEO Ltd (formally Geoscience Consulting) is a specialist consultancy group providing Engineering Geological, Geophysical, Environmental and Geotechnical Engineering services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchAuckland, New ZealandHQ recorded Sep 28, 202651-20077 contacts →

Exact match

“Fraser Thomas is a Multi-Disciplinary, client focused consulting firm specialising in resource management, engineering and surveying.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3Exact matchTakapuna, New ZealandHQ recorded Sep 28, 202611-5043 contacts →

Exact match

“GWE Consulting Engineers is a multi-disciplinary engineering consultancy providing geotechnical, civil and water, environmental, wastewater and stormwater engineering services and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchWellington, New ZealandHQ recorded Sep 28, 202611-5040 contacts →

Exact match

“Damwatch is a highly respected niche consultancy business based in Wellington, New Zealand and provide services to hydropower, water and irrigation clients internationally.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchSouth Dunedin, New ZealandHQ recorded Sep 28, 202611-5039 contacts →

Exact match

“At GeoSolve we understand the importance of managing geological risk, and our specialist knowledge and proven track record means we can provide practical resilient solutions…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6Exact matchWellington, New ZealandHQ recorded Sep 28, 202611-5037 contacts →

Exact match

“Awa Environmental is shaping stormwater to reduce flood risk, protect critical assets and infrastructure, and build resilient communities and thriving ecosystems.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchHenderson, New ZealandHQ recorded Sep 28, 202651-20028 contacts →

Exact match

“With a rich legacy spanning over three decades, Soil & Rock Consultants stand at the forefront of the geotechnical, environmental, civil, and geological engineering landscape in…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchAuckland, New ZealandHQ recorded Sep 28, 202611-5020 contacts →

Exact match

“Engineering Geology Ltd (EGL) is a professional consultancy practice specialising in geotechnical and earthquake engineering and engineering geology.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchKumeu, New ZealandHQ recorded Sep 28, 202611-5016 contacts →

Exact match

“Williamson Water & Land Advisory (WWLA) is a New Zealand based, employee owned, niche environmental consultancy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchWellington, New ZealandHQ recorded Sep 28, 202611-5015 contacts →

Exact match

“Welcome to DTCE Consulting Engineers, Wellington’s structural and geotechnical specialists.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11Exact matchWhangarei, New ZealandHQ recorded Sep 28, 202611-5010 contacts →

Exact match

“RS Eng is specialised in providing Geotechnical, Civil, Structural & Seismic engineering consulting services.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchChristchurch, New ZealandHQ recorded Sep 28, 20261-1010 contacts →

Exact match

“Specialist engineering consulting firm with expertise in hydraulic modelling of rivers and streams, river engineering, geomorphology, hydrology and hydrologic modelling, remote…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchPapakura, New ZealandHQ recorded Sep 28, 202611-5010 contacts →

Exact match

“Trenchmate is a New Zealand-owned company dedicated to delivering certified shoring, groundwater treatment, and solids control solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14Exact matchPukekohe, New ZealandHQ recorded Sep 28, 20261-109 contacts →

Exact match

“Welcome to Earthtech Consulting Limited.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15Exact matchAuckland & Northland, New ZealandHQ recorded Sep 28, 202611-509 contacts →

Exact match

“We are a consulting engineering firm that offers a comprehensive range of geotechnical, civil & structural engineering services throughout Auckland and Northland.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchTaupo, New ZealandHQ recorded Sep 28, 202611-507 contacts →

Exact match

“We are a forward-thinking consultancy driven by our passion for pioneering design concepts and advancing sustainable solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchInvercargill, New ZealandHQ recorded Sep 28, 202611-507 contacts →

Exact match

“We are a multi-disciplinary team providing holistic, leading edge environmental, civil and geotechnical solutions to improve the interaction of enterprise with soils, air, water…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchLincoln, New ZealandHQ recorded Sep 28, 20261-107 contacts →

Exact match

“Landform Projects Ltd is locally owned, with a team bringing over 50 years of combined experience in site investigation, geotechnical testing, and land design projects across…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchAuckland, New ZealandHQ recorded Sep 28, 20261-106 contacts →

Exact match

“Submergent Limited provides computer modelling services to the New Zealand water engineering industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchMapua, New ZealandHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Geotechnical consultancy services, specialising in engineering geology.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchHastings, New ZealandHQ recorded Sep 28, 202611-504 contacts →

Exact match

“Honnor Drilling has over 50 years of experience drilling high volume water wells, geothermal precollars, well maintenance and compliance.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchAuckland, New ZealandHQ recorded Sep 28, 202611-502 contacts →

Exact match

“Lander Geotechnical Consultants were established in 2014 by Principal Geotechnical Engineer, Shane Lander, who heads a professional team geotechnical engineers and geologists.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchAuckland, New ZealandHQ recorded Sep 28, 20261-102 contacts →

Exact match

“At Buttress, we are committed to providing economical, reliable, and sustainable engineering solutions that meet the unique needs of each client.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchTauranga, New ZealandHQ recorded Sep 28, 20261-102 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchChristchurch, New ZealandHQ recorded Sep 28, 20261-102 contacts →

Exact match

“Separate Phase is a small environmental consultancy based in Christchurch, NZ.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 41 hydrogeology consulting firms based in New Zealand

See the full list, filter by size, metro and specialty, and access 323 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogeology consulting firms based in New Zealand at a glance

As of Sep 28, 2026
56.4%Verified-email coverage
14.0Average contacts per company
11-50Median size (employees)
31.7%Largest-city concentration · Auckland
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
20
11-50
18
51-200
3

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 41 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with New Zealand whose business descriptions match “hydrogeology consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 323 professional contacts with verified work emails across the full matched dataset. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “hydrogeology consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 41 company matches for hydrogeology consulting firms associated with New Zealand as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Engeo NZ & AU tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hydrogeology consulting firms?

Auckland leads with 13 company records, followed by Christchurch (8) and Wellington (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 323 professional contacts with verified work emails tracked across these 41 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 41 hydrogeology consulting 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 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.