Company lists · Data refreshed September 2026

Top 24 Geotechnical consulting firms based in Sydney, Australia

Name: Geotechnical consulting firms based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 84 companies tracked

RevenueBase identified 84 geotechnical consulting firms headquartered in Sydney, Australia as of September 2026 and tracks 1,067 professional contacts across them, including 512 with verified work emails and 46 with mobile numbers. Sydney is the largest hub.

This list covers geotechnical consulting firms headquartered in Sydney, 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 12, 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 12, 2026 86% judged on-target in blind review

84Companies

1,067Contacts tracked

512Verified emails

46Mobile numbers

Explore this list → Free signup · no credit card · 500 free credits

The 24 largest geotechnical consulting firms based in Sydney, Australia

Ranked by team size

Top 24 of 84 geotechnical consulting firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical consulting firms: 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	Acor Consultants	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	501-1,000	423 contacts →
	Partial evidence “Founded in 1997, ACOR Consultants began as a group of engineers with a unique set of personal and professional values providing specialist consulting services.” Source: RevenueBase Database · checked Sep 12, 2026
2	Chalouhi	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	51-200	67 contacts →
	Indirect evidence “Chalouhi is a leading civil engineering and construction company with extensive experience in the industry.” Source: RevenueBase Database · checked Sep 12, 2026
3	ACE Civil PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 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 12, 2026
4	Triaxial Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	51-200	57 contacts →
	Partial evidence “Established in 2012, Triaxial Consulting are a firm of Consulting Civil and Structural Engineers, who provide a suite of specialist consulting engineering services, to all…” Source: RevenueBase Database · checked Sep 12, 2026
5	Riddwood Consulting Engineers	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	51-200	44 contacts →
	Indirect evidence “Founded in 1979, Riddwood has been delivering for our clients for almost fifty years.” Source: RevenueBase Database · checked Sep 12, 2026
6	Witt Consulting	Strong evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	43 contacts →
	Strong evidence “Specialist engineers consulting in the fields of temporary works, structural, geotechnical and heritage reuse.” Source: RevenueBase Database · checked Sep 12, 2026
7	Cadigal Group	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	36 contacts →
	Partial evidence “Cadigal Group is a wholly Australian employee owned company that specialises in providing consulting engineering services for the property sector.” Source: RevenueBase Database · checked Sep 12, 2026
8	Deboke Engineering Consultants	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	1-10	24 contacts →
	Indirect evidence “Some Engineers focus on form, other focus on function.” Source: RevenueBase Database · checked Sep 12, 2026
9	Rickard Engineering	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	21 contacts →
	Indirect evidence “Charles Rickard is one of Australia’s most sought-after engineers who has built a solid reputation through delivering quality, trust and innovation within his field.” Source: RevenueBase Database · checked Sep 12, 2026
10	Elegant Engineering Australia	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	1-10	21 contacts →
	Partial evidence “Consulting structural & civil engineers who help clients achieve their ambitious visions.” Source: RevenueBase Database · checked Sep 12, 2026
11	Beck Engineering PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	18 contacts →
	Partial evidence “Beck Engineering specialises in planning, engineering and applied mechanics for extreme geotechnical environments or where corporate or expert geotechnical experience is being…” Source: RevenueBase Database · checked Sep 12, 2026
12	Paragon Engineering	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	18 contacts →
	Indirect evidence “Paragon Engineering is a specialist consultancy operating across Australia, delivering practical and innovative engineering solutions to clients in the transport infrastructure…” Source: RevenueBase Database · checked Sep 12, 2026
13	Kingle Engineering	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	16 contacts →
	Indirect evidence “More Than 50 Years Of Structural Excellence.” Source: RevenueBase Database · checked Sep 12, 2026
14	Centric Building Services Engineers	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	14 contacts →
	Partial evidence “Centric Building Services Engineers Centric Building Services Engineers are a team of highly experienced consulting engineering experts in building services.” Source: RevenueBase Database · checked Sep 12, 2026
15	Aargus PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	51-200	13 contacts →
	Indirect evidence “The Aargus Group is a fully owned and operated Australian company that has been structured and tailored to suit market needs.” Source: RevenueBase Database · checked Sep 12, 2026
16	Concrete Engineering Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	11 contacts →
	Indirect evidence “Concrete Engineering Services is specialised engineering contract.” Source: RevenueBase Database · checked Sep 12, 2026
17	S&g Consultants PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	10 contacts →
	Partial evidence “S&G Consultants Pty Ltd is a dynamic organisation founded in 2003 by Managing Director Samer El Haddad in response to a market demand for integrated consulting engineering…” Source: RevenueBase Database · checked Sep 12, 2026
18	Soilsrock Engineering PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 12, 2026	1-10	9 contacts →
	Strong evidence “Soilsrock Engineering Pty Ltd is a private Australian property company specialised in geotechnical, environmental and structural engineering consulting within the Building and…” Source: RevenueBase Database · checked Sep 12, 2026
19	Geba Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	1-10	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026
20	Excelo	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	1-10	7 contacts →
	Partial evidence “Excelo Consulting Engineers is a young & dynamic team of Engineers specialising in structural, remedial and façade engineering.” Source: RevenueBase Database · checked Sep 12, 2026
21	Aitken Civil Engineering	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	5 contacts →
	Indirect evidence “Aitken Civil is staffed by a group of straight-shooting and experienced construction professionals who have a track record of delivering landmark civil works for our clients in…” Source: RevenueBase Database · checked Sep 12, 2026
22	Donovan Associates	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	5 contacts →
	Indirect evidence “Donovan Associates have been providing Engineering and Surveying services to the building industry and government departments for over 30 years.” Source: RevenueBase Database · checked Sep 12, 2026
23	Civil Construction Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 12, 2026	1-10	5 contacts →
	Indirect evidence “Civil Construction Solutions \|Development Group & Civil Construction Solutions \|Engineering Efficient, Professional, and Timely Solutions for Your Property Development and Civil…” Source: RevenueBase Database · checked Sep 12, 2026
24	Concrete Future	Partial evidence	Sydney, AustraliaHQ checked Sep 12, 2026	11-50	4 contacts →
	Partial evidence “Concrete Future is an independent company which provides specialist investigation and consulting services to producers, contractors and consultants in the public and private…” Source: RevenueBase Database · checked Sep 12, 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: geotechnical consulting firms. 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 geotechnical consulting firms.
Partial evidence: Its own public description names part of geotechnical consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical consulting firms. 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 24 of 84 geotechnical consulting firms based in Sydney, Australia

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 512 reachable decision-makers.

Free signup · no credit card

View the full list →

Geotechnical consulting firms based in Sydney, Australia at a glance

As of Sep 12, 2026

48.0%Verified-email coverage

4.3%Mobile-number coverage

12.7Average contacts per company

1-10Median size (employees)

108.3%Largest-city concentration · Sydney

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 14.0d

4340–30

7231–60

561–90

090–180

1180+

Company record updated

Median 63.0d

00–30

43131–60

48661–90

10390–180

47180+

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 geotechnical consulting firms, 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 Sydney, Australia whose own description of what they do matches “geotechnical consulting firms”. 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 geotechnical consulting firms), 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 geotechnical consulting firms, and records with no verified work email. Companies headquartered outside Sydney 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, 512 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 12, 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.

Geotechnical consulting firms by metro in Australia

Geotechnical consulting firms in Sydney91
Geotechnical consulting firms in Melbourne79
Geotechnical consulting firms in Brisbane69
Geotechnical consulting firms in Perth67
Geotechnical consulting firms in Adelaide25

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 geotechnical consulting firms, 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 geotechnical consulting firms are there based in Sydney, Australia?

RevenueBase identified 84 geotechnical consulting firms headquartered in Sydney, 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?

Acor Consultants, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most geotechnical consulting firms?

Sydney leads with 91 headquartered companies, followed by Melbourne (79) and Brisbane (69).

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 512 verified decision-maker contacts tracked across these 84 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 12, 2026.

Ready to reach these companies? Verified emails and direct dials for all 84 geotechnical consulting firms based in Sydney, Australia. Start with a free account, no credit card.

Download this list →

Related lists

Geotechnical consulting firms by geography

Browse the directory

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.