Company lists · Data refreshed September 2026

Top 23 Hydrogeological survey companies based in Australia

Name: Hydrogeological survey companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 187 companies tracked

RevenueBase identified 187 hydrogeological survey companies headquartered in Australia as of September 2026 and tracks 1,750 professional contacts across them, including 912 with verified work emails. Perth is the largest hub.

This list covers hydrogeological survey companies headquartered in Australia, 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 20, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

187Companies

1,750Contacts tracked

912Verified emails

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The 23 largest hydrogeological survey companies based in Australia

Ranked by team size

Top 23 of 187 hydrogeological survey companies based in Australia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to hydrogeological survey companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	PSM	Indirect evidence	North Ryde, AustraliaHQ checked Sep 20, 2026	51-200	223 contacts →
	Indirect evidence “PSM provides specialised design and investigation services for engineering in rock, soil and water.” Source: RevenueBase Database · checked Sep 20, 2026
2	Macquarie Geotechnical	Indirect evidence	Bathurst, AustraliaHQ checked Sep 20, 2026	51-200	108 contacts →
	Indirect evidence “Macquarie Geotechnical is a leading provider of geotechnical services, supporting the construction, government, mining, renewable energy, groundwater, and environmental sectors.” Source: RevenueBase Database · checked Sep 20, 2026
3	Southern Geoscience Consultants	Indirect evidence	West Perth, AustraliaHQ checked Sep 20, 2026	51-200	49 contacts →
	Indirect evidence “Established in 1985, SGC provides integrated geophysical solutions that identify value-added outcomes for the natural resources sectors.” Source: RevenueBase Database · checked Sep 20, 2026
4	Australasian Groundwater And Environmental AGE Consultants	Indirect evidence	Bowen Hills, AustraliaHQ checked Sep 20, 2026	11-50	48 contacts →
	Indirect evidence “We are Australia’s specialist groundwater consultancy.” Source: RevenueBase Database · checked Sep 20, 2026
5	MBS Environmental	Indirect evidence	West Perth, AustraliaHQ checked Sep 20, 2026	11-50	44 contacts →
	Indirect evidence “MBS Environmental (formerly Martinick McNulty Pty Ltd) was established in 1978 and is based in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 20, 2026
6	Butler Partners PTY LTD	Indirect evidence	Albion, AustraliaHQ checked Sep 20, 2026	51-200	42 contacts →
	Indirect evidence “At Butler Partners, we specialise in providing high quality, practical, face-to-face and cost-effective design advice to our clients.” Source: RevenueBase Database · checked Sep 20, 2026
7	Bluesphere Environmental	Indirect evidence	Southbank, AustraliaHQ checked Sep 20, 2026	11-50	33 contacts →
	Indirect evidence “BlueSphere Environmental Pty Ltd (BlueSphere) is an Australian, employee owned, specialist environmental consultancy with a strong focus on site contamination management and…” Source: RevenueBase Database · checked Sep 20, 2026
8	Soil Surveys	Partial evidence	Eagle Farm, AustraliaHQ checked Sep 20, 2026	11-50	32 contacts →
	Partial evidence “Soil Surveys Engineering Pty.” Source: RevenueBase Database · checked Sep 20, 2026
9	EGS Survey PTY LTD EGS Australia	Partial evidence	South Fremantle, AustraliaHQ checked Sep 20, 2026	51-200	31 contacts →
	Partial evidence “EGS Australia provides specialist hydrographic and geophysical survey solutions across a wide range of sectors including oil and gas, renewables, telecommunications, ports and…” Source: RevenueBase Database · checked Sep 20, 2026
10	MUDEX	Indirect evidence	Canning Vale, AustraliaHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “Mudex is a privately owned and operated Australian drilling fluids company specialising in the manufacture and supply of high quality and environmentally friendly drilling fluid…” Source: RevenueBase Database · checked Sep 20, 2026
11	Meso Solutions	Indirect evidence	Rosebery, AustraliaHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “MESO Solutions is an integrated civil engineering company providing design and certification, dewatering, shotcreting, sheet piling and anchoring across Australia.” Source: RevenueBase Database · checked Sep 20, 2026
12	Reditus Consulting	Indirect evidence	Kirrawee, AustraliaHQ checked Sep 20, 2026	11-50	26 contacts →
	Indirect evidence “Reditus is a professional services firm established to provide responsive, high quality, specialist consulting services in hydrogeology, environmental, contaminated land and…” Source: RevenueBase Database · checked Sep 20, 2026
13	Valenza Engineering Group	Indirect evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	11-50	23 contacts →
	Indirect evidence “Valenza Engineering is a global specialist groundwater engineering company providing high-quality, full-spectrum technical solutions in the fields of groundwater engineering and…” Source: RevenueBase Database · checked Sep 20, 2026
14	SCT Operations Strata Control Technology	Indirect evidence	Wollongong, AustraliaHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “SCT Operations (Strata Control Technology) provides geotechnical consultancy and instrumentation services to the mining industry globally.” Source: RevenueBase Database · checked Sep 20, 2026
15	Rockwater	Partial evidence	Jolimont, AustraliaHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “Rockwater is a specialist hydrogeological and environmental consulting firm with the office in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 20, 2026
16	Zonge Engineering & Research Organization Aust PTY LTD	Partial evidence	Edwardstown, AustraliaHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “Zonge is a specialist in the provision of electrical ground geophysical surveys with over 30 years experience in Australia.” Source: RevenueBase Database · checked Sep 20, 2026
17	Welltech Total Water Management	Indirect evidence	Perth, AustraliaHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “Welltech Total Water Management Is Australia’s Leading Specialist In Construction Water Supply, Bypass Operations, Water Well Drilling And Groundwater Management Our journey and…” Source: RevenueBase Database · checked Sep 20, 2026
18	Future-Plus Environmental	Indirect evidence	Warana, AustraliaHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Expert Environmental Planners, Environmental Scientists and Environmental Engineering.” Source: RevenueBase Database · checked Sep 20, 2026
19	BDC Drilling	Indirect evidence	Bunbury, AustraliaHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “BDC has been providing an unparalleled level of drilling services to the mining, agricultural and public water supply industries for over half a century.” Source: RevenueBase Database · checked Sep 20, 2026
20	Fender Geophysics	Partial evidence	North Sydney, AustraliaHQ checked Sep 20, 2026	11-50	16 contacts →
	Partial evidence “Fender Geophysics is a Sydney-based geophysical survey provider offering geophysical surveys to the minerals exploration industry.” Source: RevenueBase Database · checked Sep 20, 2026
21	Guardian Geomatics	Partial evidence	West Perth, AustraliaHQ checked Sep 20, 2026	51-200	16 contacts →
	Partial evidence “We are an independent, Australian owned marine survey company with offices in Perth, Western Australia and Singapore.” Source: RevenueBase Database · checked Sep 20, 2026
22	RGS Environmental Consultants PTY LTD	Indirect evidence	Coopers Plains, AustraliaHQ checked Sep 20, 2026	11-50	15 contacts →
	Indirect evidence “RGS Environmental is an owner-operated, leading, environmental consulting company that has been operating successfully for over 13 years.” Source: RevenueBase Database · checked Sep 20, 2026
23	Geoconsult PTY LTD	Indirect evidence	Newstead, AustraliaHQ checked Sep 20, 2026	51-200	15 contacts →
	Indirect evidence “For a full description of services please visit GeoConsult is a progressive and multi-disciplinary company of consulting geoscientists and affiliated industry professionals…” Source: RevenueBase Database · checked Sep 20, 2026

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: hydrogeological survey companies. 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 hydrogeological survey companies.
Partial evidence: Its own public description names part of hydrogeological survey companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name hydrogeological survey companies. 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 23 of 187 hydrogeological survey companies based in Australia

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Hydrogeological survey companies based in Australia at a glance

As of Sep 20, 2026

52.1%Verified-email coverage

9.4Average contacts per company

1-10Median size (employees)

15.5%Largest-city concentration · Perth

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

110

11-50

51-200

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 187 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 hydrogeological survey companies, 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 Australia whose own description of what they do matches “hydrogeological survey companies”. 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 hydrogeological survey companies), 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 hydrogeological survey companies, and records with no verified work email. Companies headquartered outside Australia 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, 912 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 20, 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.

Hydrogeological survey companies by metro

Hydrogeological survey companies in Perth29

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 hydrogeological survey companies, 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 hydrogeological survey companies are there based in Australia?

RevenueBase identified 187 hydrogeological survey companies headquartered in Australia 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?

PSM, headquartered in North Ryde, tops this list with the largest team on record.

Which city has the most hydrogeological survey companies?

Perth leads with 29 headquartered companies, followed by Sydney (10) and Melbourne (8).

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 912 verified decision-maker contacts tracked across these 187 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 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 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.