Company lists · Data refreshed September 2026

Top 23 Subsurface analysis companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 585 companies tracked

RevenueBase identified 585 subsurface analysis companies headquartered in Australia as of September 2026 and tracks 11,516 professional contacts across them, including 4,428 with verified work emails. Perth is the largest hub.

This list covers subsurface analysis 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 19, 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 19, 2026 86% judged on-target in blind review

585Companies

11,516Contacts tracked

4,428Verified emails

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The 23 largest subsurface analysis companies based in Australia

Ranked by team size

Top 23 of 585 subsurface analysis companies based in Australia, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to subsurface analysis 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	Douglas Partners	Indirect evidence	West Ryde, AustraliaHQ checked Sep 19, 2026	501-1,000	466 contacts →
	Indirect evidence “Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.” Source: RevenueBase Database · checked Sep 19, 2026
2	Construction Sciences	Indirect evidence	Albion, AustraliaHQ checked Sep 19, 2026	1,001-5,000	423 contacts →
	Indirect evidence “Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.” Source: RevenueBase Database · checked Sep 19, 2026
3	PSM	Indirect evidence	North Ryde, AustraliaHQ checked Sep 19, 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 19, 2026
4	FMG Engineering	Indirect evidence	Wayville, AustraliaHQ checked Sep 19, 2026	51-200	198 contacts →
	Indirect evidence “FMG Engineering is an award winning multi-disciplinary Engineering Consultancy providing services and solutions to the development, property and urban infrastructure sectors.” Source: RevenueBase Database · checked Sep 19, 2026
5	Geovert	Indirect evidence	Rosebery, AustraliaHQ checked Sep 19, 2026	201-500	192 contacts →
	Indirect evidence “Geovert is a global ground engineering company founded in Christchurch, New Zealand in 2001.” Source: RevenueBase Database · checked Sep 19, 2026
6	Senversa	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	201-500	181 contacts →
	Indirect evidence “Senversa is an Australian, employee-owned environmental, engineering & sustainability professional services firm, specialising in the provision of environmental approvals, ground…” Source: RevenueBase Database · checked Sep 19, 2026
7	RSC	Indirect evidence	Perth, AustraliaHQ checked Sep 19, 2026	51-200	160 contacts →
	Indirect evidence “RSC was established early in 2008 and now operates a global group of companies with subsidiaries in Africa, Asia, Oceania and Europe.” Source: RevenueBase Database · checked Sep 19, 2026
8	Avopiling Foundation Specialists	Indirect evidence	Chatswood, AustraliaHQ checked Sep 19, 2026	51-200	154 contacts →
	Indirect evidence “Avopiling is a proudly Australian owned and operated company.” Source: RevenueBase Database · checked Sep 19, 2026
9	Alliance Geotechnical	Indirect evidence	Seven Hills, AustraliaHQ checked Sep 19, 2026	51-200	120 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 19, 2026
10	Mining ONE Consultants	Indirect evidence	Melbourne, AustraliaHQ checked Sep 19, 2026	51-200	117 contacts →
	Indirect evidence “Mining One was established in August 2005 to provide technical expertise in the fields of geotechnical engineering, resource geology, mining engineering, processing, numerical…” Source: RevenueBase Database · checked Sep 19, 2026
11	Macquarie Geotechnical	Indirect evidence	Bathurst, AustraliaHQ checked Sep 19, 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 19, 2026
12	The RIX Group	Indirect evidence	Kurnell, AustraliaHQ checked Sep 19, 2026	51-200	107 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
13	Burchills Engineering Solutions	Indirect evidence	South East Queensland, AustraliaHQ checked Sep 19, 2026	51-200	98 contacts →
	Indirect evidence “Burchills Engineering Solutions is a South East Qld based, locally owned multidisciplinary team of professional engineers & scientists with a track record of helping clients…” Source: RevenueBase Database · checked Sep 19, 2026
14	EI Australia	Indirect evidence	Pyrmont, AustraliaHQ checked Sep 19, 2026	51-200	93 contacts →
	Indirect evidence “Welcome to EI Australia an Australian-owned, ISO 9001, 14001 & 4801 Certified, professional services company providing Environmental, Geotechnical and Structural engineering…” Source: RevenueBase Database · checked Sep 19, 2026
15	Qest Infrastructure PTY LTD	Indirect evidence	North Geelong, AustraliaHQ checked Sep 19, 2026	201-500	78 contacts →
	Indirect evidence “QEST Infrastructure is an Australian civil, geotechnical, environmental, engineering and industrial services provider, delivering complete infrastructure solutions across…” Source: RevenueBase Database · checked Sep 19, 2026
16	Seam Spatial	Indirect evidence	Bongaree, AustraliaHQ checked Sep 19, 2026	51-200	69 contacts →
	Indirect evidence “SEAM Spatial provides advanced surveying services, monitoring and spatial solutions with over 15 years of experience in the mining, infrastructure and construction industries.” Source: RevenueBase Database · checked Sep 19, 2026
17	ASCT	Indirect evidence	Ballina, AustraliaHQ checked Sep 19, 2026	51-200	66 contacts →
	Indirect evidence “ASCT (Australian Soil & Concrete Testing) is the largest independently owned Construction Material Testing company on the Eastern Seaboard of Australia.” Source: RevenueBase Database · checked Sep 19, 2026
18	Durkin	Indirect evidence	Seven Hills, AustraliaHQ checked Sep 19, 2026	51-200	65 contacts →
	Indirect evidence “Durkin provides professional engineering services to the construction and built environment industries within the Australian workspace.” Source: RevenueBase Database · checked Sep 19, 2026
19	JK Group	Indirect evidence	Macquarie Park, AustraliaHQ checked Sep 19, 2026	51-200	65 contacts →
	Indirect evidence “The JK Group is a proudly employee owned and managed company that values professionalism through honesty, dependability and integrity.” Source: RevenueBase Database · checked Sep 19, 2026
20	ACE Civil PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 19, 2026	201-500	65 contacts →
	Indirect evidence “ACE Civil (formerly ACE Demolition and Excavation) has been established since 1997, the company is specialized in ground engineering and piling works in addition to demolition and…” Source: RevenueBase Database · checked Sep 19, 2026
21	Chadwick Geotechnics	Indirect evidence	Dandenong South, AustraliaHQ checked Sep 19, 2026	51-200	61 contacts →
	Indirect evidence “Chadwick Geotechnics is a leading provider of geotechnical engineering services across Australia, with over 20 years of experience and a team of highly qualified engineers and…” Source: RevenueBase Database · checked Sep 19, 2026
22	Terra Firma Laboratories	Indirect evidence	Pakenham, AustraliaHQ checked Sep 19, 2026	51-200	61 contacts →
	Indirect evidence “Terra Firma Laboratories provides Soils, Concrete, asphalt and geosynthetics testing for construction projects big and small."Your worksite is our laboratory".” Source: RevenueBase Database · checked Sep 19, 2026
23	Ground Science PTY LTD	Indirect evidence	Thomastown, AustraliaHQ checked Sep 19, 2026	51-200	60 contacts →
	Indirect evidence “Ground Science was established in 2003 as a multi-disciplinary engineering company, providing the following services throughout Victoria- Geotechnical Engineering with field and…” Source: RevenueBase Database · checked Sep 19, 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: subsurface analysis 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 subsurface analysis companies.
Partial evidence: Its own public description names part of subsurface analysis companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name subsurface analysis 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 585 subsurface analysis companies based in Australia

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Subsurface analysis companies based in Australia at a glance

As of Sep 19, 2026

38.5%Verified-email coverage

19.7Average contacts per company

1-10Median size (employees)

8.0%Largest-city concentration · Perth

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

314

11-50

189

51-200

201-500

501-1,000

1,001-5,000

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 585 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 subsurface analysis 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 “subsurface analysis 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 subsurface analysis 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 subsurface analysis 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, 4,428 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 19, 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.

Subsurface analysis companies by metro

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 subsurface analysis 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 subsurface analysis companies are there based in Australia?

RevenueBase identified 585 subsurface analysis 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?

Douglas Partners, headquartered in West Ryde, tops this list with the largest team on record.

Which city has the most subsurface analysis companies?

Perth leads with 47 headquartered companies, followed by Melbourne (38) and Sydney (33).

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 4,428 verified decision-maker contacts tracked across these 585 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 19, 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.