Company lists · Data refreshed September 2026

Top 25 Site assessment and testing companies based in Australia

Name: Site assessment and testing companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 195 companies tracked

RevenueBase identified 195 site assessment and testing companies headquartered in Australia as of September 2026 and tracks 2,668 professional contacts across them, including 1,333 with verified work emails. Sydney is the largest hub.

This list covers site assessment and testing 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 22, 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 22, 2026 86% judged on-target in blind review

195Companies

2,668Contacts tracked

1,333Verified emails

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The 25 largest site assessment and testing companies based in Australia

Ranked by team size

Top 25 of 195 site assessment and testing companies based in Australia, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to site assessment and testing 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	Construction Sciences	Partial evidence	Albion, AustraliaHQ checked Sep 22, 2026	1,001-5,000	423 contacts →
	Partial evidence “Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.” Source: RevenueBase Database · checked Sep 22, 2026
2	Envirolab Group	Partial evidence	Chatswood, AustraliaHQ checked Sep 22, 2026	201-500	130 contacts →
	Partial evidence “Envirolab Group offers a wide array of environment testing and analytical services to support investigations of inorganic and organic contaminants and pollutants.” Source: RevenueBase Database · checked Sep 22, 2026
3	Alliance Geotechnical	Indirect evidence	Seven Hills, AustraliaHQ checked Sep 22, 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 22, 2026
4	Macquarie Geotechnical	Indirect evidence	Bathurst, AustraliaHQ checked Sep 22, 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 22, 2026
5	ALS Environmental - Australia	Indirect evidence	Smithfield, AustraliaHQ checked Sep 22, 2026	1,001-5,000	86 contacts →
	Indirect evidence “Welcome to ALS Environmental, follow our showcase pages for what interest's you.” Source: RevenueBase Database · checked Sep 22, 2026
6	CETEC	Indirect evidence	Melbourne, AustraliaHQ checked Sep 22, 2026	11-50	81 contacts →
	Indirect evidence “CETEC is an independent consultancy delivering scientific and technical solutions.” Source: RevenueBase Database · checked Sep 22, 2026
7	ASCT	Partial evidence	Ballina, AustraliaHQ checked Sep 22, 2026	51-200	66 contacts →
	Partial 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 22, 2026
8	Terra Firma Laboratories	Partial evidence	Pakenham, AustraliaHQ checked Sep 22, 2026	51-200	61 contacts →
	Partial 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 22, 2026
9	Agon Environmental	Indirect evidence	Fullarton, AustraliaHQ checked Sep 22, 2026	11-50	52 contacts →
	Indirect evidence “Agon Environmental is an Australian consultancy delivering quality environmental services.” Source: RevenueBase Database · checked Sep 22, 2026
10	Ground Technologies PTY LTD	Indirect evidence	Prestons, AustraliaHQ checked Sep 22, 2026	11-50	50 contacts →
	Indirect evidence “Strength you can build on.” Source: RevenueBase Database · checked Sep 22, 2026
11	SMS Geotechnical	Partial evidence	Para Hills West, AustraliaHQ checked Sep 22, 2026	11-50	47 contacts →
	Partial evidence “SMS Geotechnical is a NATA accredited Construction Materials Testing business that specialises in soil and aggregate testing.” Source: RevenueBase Database · checked Sep 22, 2026
12	Occuhealth	Indirect evidence	Mandurah, AustraliaHQ checked Sep 22, 2026	51-200	43 contacts →
	Indirect evidence “Occuhealth is a full-service occupational health and hygiene consultancy operating throughout Western Australia, nationally and internationally.” Source: RevenueBase Database · checked Sep 22, 2026
13	Core Consultants	Indirect evidence	Coolum Beach, AustraliaHQ checked Sep 22, 2026	11-50	42 contacts →
	Indirect evidence “Geotechnical Engineering and Environmental Science” Source: RevenueBase Database · checked Sep 22, 2026
14	Aurora Environmental	Indirect evidence	Perth, AustraliaHQ checked Sep 22, 2026	11-50	37 contacts →
	Indirect evidence “Aurora Environmental is a specialist environmental science and occupational hygiene consultancy based in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 22, 2026
15	GSG Laboratories	Indirect evidence	Qld \| Nsw, AustraliaHQ checked Sep 22, 2026	51-200	37 contacts →
	Indirect evidence “GSG Laboratories (previously known as Geotechnical Services and East West Enviroag) is a 100% Australian owned and operated construction material, environmental, and agricultural…” Source: RevenueBase Database · checked Sep 22, 2026
16	Sesl Australia	Partial evidence	Thornleigh, AustraliaHQ checked Sep 22, 2026	11-50	29 contacts →
	Partial evidence “Call us on 1300 30 40 80 We provide Soil Science Consulting, Environmental Consulting and NATA accredited soil testing services.” Source: RevenueBase Database · checked Sep 22, 2026
17	Western Geotechnical & Laboratory Services	Indirect evidence	Welshpool, AustraliaHQ checked Sep 22, 2026	11-50	28 contacts →
	Indirect evidence “Western Geotechnical & Laboratory Services is a locally owned and operated laboratory based in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 22, 2026
18	RCA Australia	Indirect evidence	Carrington, AustraliaHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “RCA Australia was founded in 1994, providing specialist consultancy services from our headquarters in Newcastle NSW.” Source: RevenueBase Database · checked Sep 22, 2026
19	Sigra PTY LTD	Indirect evidence	Brisbane, AustraliaHQ checked Sep 22, 2026	11-50	24 contacts →
	Indirect evidence “Over the past 3 decades, Sigra has found solutions to problems associated with the ground in the fields of mining, civil and petroleum engineering.” Source: RevenueBase Database · checked Sep 22, 2026
20	Trilab PTY LTD	Partial evidence	Geebung, AustraliaHQ checked Sep 22, 2026	11-50	21 contacts →
	Partial evidence “Trilab is Australasia's leading independent supplier of specialised soil and mechanics testing.” Source: RevenueBase Database · checked Sep 22, 2026
21	Mobile Screening Australia PTY LTD	Indirect evidence	Victoria, AustraliaHQ checked Sep 22, 2026	51-200	18 contacts →
	Indirect evidence “Established in 1980, Mobile Screening is a nation-wide company delivering professional onsite health screening and occupational hygiene services.” Source: RevenueBase Database · checked Sep 22, 2026
22	Indt PTY LTD	Partial evidence	Mackay, AustraliaHQ checked Sep 22, 2026	11-50	18 contacts →
	Partial evidence “INDT Pty Ltd is a privately owned independent third party inspection and testing company that has been servicing the Manufacturing, Sugar and Mining industries since 2004.” Source: RevenueBase Database · checked Sep 22, 2026
23	Soil Engineering Services	Partial evidence	Bohle, AustraliaHQ checked Sep 22, 2026	11-50	18 contacts →
	Partial evidence “Soil Engineering Services (SES) is a geotechnical testing company specialising in the testing of soil, aggregates and concrete for construction, building and infrastructure…” Source: RevenueBase Database · checked Sep 22, 2026
24	Site Environmental And Remediation Services Sers	Partial evidence	Perth, AustraliaHQ checked Sep 22, 2026	11-50	17 contacts →
	Partial evidence “Established in 2008, Site Environmental & Remediation Services Pty Ltd (SERS) provides cost effective, client focused environmental services across the whole of Australia.” Source: RevenueBase Database · checked Sep 22, 2026
25	Robson Environmental PTY LTD	Indirect evidence	Fyshwick, AustraliaHQ checked Sep 22, 2026	11-50	17 contacts →
	Indirect evidence “Robson Environmental is a wholly Australian owned customer focused multi-disciplinary Environmental Consultancy and Registered Training Organisation.” Source: RevenueBase Database · checked Sep 22, 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: site assessment and testing 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 site assessment and testing companies.
Partial evidence: Its own public description names part of site assessment and testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name site assessment and testing 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 25 of 195 site assessment and testing companies based in Australia

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Site assessment and testing companies based in Australia at a glance

As of Sep 22, 2026

50.0%Verified-email coverage

13.7Average contacts per company

1-10Median size (employees)

7.2%Largest-city concentration · Sydney

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

107

11-50

51-200

201-500

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 195 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 site assessment and testing 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 “site assessment and testing 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 site assessment and testing 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 site assessment and testing 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, 1,333 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 22, 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

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 site assessment and testing 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 site assessment and testing companies are there based in Australia?

RevenueBase identified 195 site assessment and testing 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?

Construction Sciences, headquartered in Albion, tops this list with the largest team on record.

Which city has the most site assessment and testing companies?

Sydney leads with 14 headquartered companies, followed by Melbourne (9) and Brisbane (7).

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 1,333 verified decision-maker contacts tracked across these 195 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 22, 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.