Company lists · Data refreshed September 2026

Top 22 Hydrogeology consultants based in Australia

RevenueBase identified 888 company matches for hydrogeology consultants associated with Australia as of September 2026 and tracks 14,425 professional contacts across them, including 6,220 with verified work emails. Perth is the largest hub.

This list covers company matches for hydrogeology consultants associated with Australia, 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 20, 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 20, 2026 How this list was built
888Companies
14,425Contacts tracked
6,220Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 22 largest hydrogeology consultants based in Australia

Ranked by team size
Top 22 of 888 company matches for hydrogeology consultants based in Australia, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 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 matchMelbourne, AustraliaHQ recorded Sep 20, 2026201-500468 contacts →

Exact match

“ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchWest Ryde, AustraliaHQ recorded Sep 20, 2026501-1,000466 contacts →

Exact match

“Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchAlbion, AustraliaHQ recorded Sep 20, 20261,001-5,000423 contacts →

Exact match

“Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchMelbourne, AustraliaHQ recorded Sep 20, 2026201-500317 contacts →

Exact match

“pitt & sherry is an Australian-owned engineering and environmental consultancy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchNorth Ryde, AustraliaHQ recorded Sep 20, 202651-200223 contacts →

Exact match

“PSM provides specialised design and investigation services for engineering in rock, soil and water.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchMordialloc, AustraliaHQ recorded Sep 20, 2026201-500222 contacts →

Exact match

“ATC Williams is a consulting engineering company specialising in providing custom solutions for tailings, water, waste, and resource recovery projects.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchBrisbane, AustraliaHQ recorded Sep 20, 2026201-500216 contacts →

Exact match

“Now a part of the Egis Group, Engeny provides a wide range of specialist engineering and environmental consultancy services across disciplines.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchMelbourne, AustraliaHQ recorded Sep 20, 2026201-500181 contacts →

Exact match

“Senversa is an Australian, employee-owned environmental, engineering & sustainability professional services firm, specialising in the provision of environmental approvals, ground…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchBrisbane City, AustraliaHQ recorded Sep 20, 202651-200163 contacts →

Exact match

“MEC is a leading global technical consulting firm dedicated to servicing the mining industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchPerth, AustraliaHQ recorded Sep 20, 202651-200160 contacts →

Exact match

“RSC was established early in 2008 and now operates a global group of companies with subsidiaries in Africa, Asia, Oceania and Europe.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchSeven Hills, AustraliaHQ recorded Sep 20, 202651-200120 contacts →

Exact match

“Alliance Geotechnical is an established and highly respected Geotechnical and Environmental consultancy firm with a proven track record in delivering and exceeding our client’s…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchMelbourne, AustraliaHQ recorded Sep 20, 202651-200117 contacts →

Exact match

“Mining One was established in August 2005 to provide technical expertise in the fields of geotechnical engineering, resource geology, mining engineering, processing, numerical…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchBathurst, AustraliaHQ recorded Sep 20, 202651-200108 contacts →

Exact match

“Macquarie Geotechnical is a leading provider of geotechnical services, supporting the construction, government, mining, renewable energy, groundwater, and environmental sectors.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchMayfield West, AustraliaHQ recorded Sep 20, 202651-20093 contacts →

Exact match

“Beca HunterH2O is a diverse, empowered, and trusted team of 300+ water specialists, passionate about healthy and sustainable communities wherever we work.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchPyrmont, AustraliaHQ recorded Sep 20, 202651-20093 contacts →

Exact match

“Welcome to EI Australia an Australian-owned, ISO 9001, 14001 & 4801 Certified, professional services company providing Environmental, Geotechnical and Structural engineering…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchWangara, AustraliaHQ recorded Sep 20, 202651-20093 contacts →

Exact match

“ADENCO is a dynamic company in the Water Management & Civil and Mechanical Engineering Industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchMelbourne, AustraliaHQ recorded Sep 20, 202651-20089 contacts →

Exact match

“Sequana is a client-side project management consultancy that aims to provide exceptional advice, leadership and management services to the water and environment industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchGlen Waverley, AustraliaHQ recorded Sep 20, 202651-20080 contacts →

Exact match

“Expertise.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchNorth Geelong, AustraliaHQ recorded Sep 20, 2026201-50078 contacts →

Exact match

“QEST Infrastructure is an Australian civil, geotechnical, environmental, engineering and industrial services provider, delivering complete infrastructure solutions across…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchBrisbane, AustraliaHQ recorded Sep 20, 202651-20076 contacts →

Exact match

“Pitch Black Group is an Australian professional engineering and project services consultancy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchClare, AustraliaHQ recorded Sep 20, 202651-20070 contacts →

Exact match

“As an Australian-owned consultancy company specialising in agribusiness, water and environment, Pinion Advisory unlocks the potential in our people, our clients and our natural…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchFortitude Valley, AustraliaHQ recorded Sep 20, 202651-20069 contacts →

Exact match

“With offices in Brisbane and Sydney, Bligh Tanner is a structural, façade, civil, environmental and water engineering consultancy distinguished by its high level of expertise…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 22 of 888 hydrogeology consultants based in Australia

See the full list, filter by size, metro and specialty, and access 6,220 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrogeology consultants based in Australia at a glance

As of Sep 20, 2026
43.1%Verified-email coverage
16.2Average contacts per company
1-10Median size (employees)
11.0%Largest-city concentration · Perth
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
550
11-50
245
51-200
74
201-500
10
501-1,000
2
1,001-5,000
2

Email recency for this list is measured worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 888 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 Australia whose business descriptions match “hydrogeology consultants” 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 6,220 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 20, 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 consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many hydrogeology consultants are there based in Australia?

RevenueBase identified 888 company matches for hydrogeology consultants associated with Australia 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?

ADP Consulting tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most hydrogeology consultants?

Perth leads with 98 company records, followed by Sydney (71) and Brisbane (63).

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 6,220 professional contacts with verified work emails tracked across these 888 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 20, 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.