Company lists · Data refreshed September 2026

Top 24 Geological consultants based in Sydney, Australia

Name: Geological consultants based in Sydney, Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 125 companies tracked

RevenueBase identified 125 geological consultants headquartered in Sydney, Australia as of September 2026 and tracks 1,673 professional contacts across them, including 863 with verified work emails. Perth is the largest hub.

This list covers geological consultants 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 21, 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 21, 2026 86% judged on-target in blind review

125Companies

1,673Contacts tracked

863Verified emails

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The 24 largest geological consultants based in Sydney, Australia

Ranked by team size

Top 24 of 125 geological consultants based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to geological consultants: 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 21, 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 21, 2026
2	Jbs&g	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	262 contacts →
	Partial evidence “Established in 1996, JBS & G is one of Australia’s leading environmental consultancies with offices in Sydney, Melbourne, Perth, Adelaide, Brisbane, Canberra, Darwin, Wollongong…” Source: RevenueBase Database · checked Sep 21, 2026
3	ECO Logical Australia PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	201-500	211 contacts →
	Indirect evidence “We exist to empower people to make a difference.” Source: RevenueBase Database · checked Sep 21, 2026
4	SJA	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	145 contacts →
	Partial evidence “SJA Construction Services is a specialist consultancy firm providing independent expert, advisory and technical services to the construction and infrastructure industry across…” Source: RevenueBase Database · checked Sep 21, 2026
5	ACE Civil PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
6	Triaxial Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	57 contacts →
	Indirect 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 21, 2026
7	Witt Consulting	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	43 contacts →
	Indirect evidence “Specialist engineers consulting in the fields of temporary works, structural, geotechnical and heritage reuse.” Source: RevenueBase Database · checked Sep 21, 2026
8	CWG Project Services	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	37 contacts →
	Partial evidence “CWG Project Services is a multi-disciplinary consultancy firm specialising in the provision of Project and Program Management and Systems Engineering & Safety Assurance services…” Source: RevenueBase Database · checked Sep 21, 2026
9	Deboke Engineering Consultants	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	24 contacts →
	Indirect evidence “Some Engineers focus on form, other focus on function.” Source: RevenueBase Database · checked Sep 21, 2026
10	Elegant Engineering Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	21 contacts →
	Indirect evidence “Consulting structural & civil engineers who help clients achieve their ambitious visions.” Source: RevenueBase Database · checked Sep 21, 2026
11	Beck Engineering PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	18 contacts →
	Indirect 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 21, 2026
12	Aargus PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
13	Concrete Engineering Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “Concrete Engineering Services is specialised engineering contract.” Source: RevenueBase Database · checked Sep 21, 2026
14	Soilsrock Engineering PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	9 contacts →
	Indirect 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 21, 2026
15	Sonic GEO	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	51-200	8 contacts →
	Indirect evidence “Sonic Geo provides specialist ground support and slope stablisation services to the infrastructure, construction, civil, rail, road and other industries.” Source: RevenueBase Database · checked Sep 21, 2026
16	Treadstone Resource Partners	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	6 contacts →
	Indirect evidence “Treadstone Resource Partners is an independent corporate advisory firm with a focus on the natural resources sector.” Source: RevenueBase Database · checked Sep 21, 2026
17	Simplex Advisory	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “Simplex Advisory is a boutique construction consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
18	Iron Cove Global	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Iron Cove Global is an executive search and advisory practice focused on global resources and energy sectors.” Source: RevenueBase Database · checked Sep 21, 2026
19	Concrete Future	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 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 21, 2026
20	Centra Consulting Engineers	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “Centra is a structural engineering consultancy specialising in both permanent and temporary works.” Source: RevenueBase Database · checked Sep 21, 2026
21	DXJ Recruitment	Partial evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “Engineering Recruitment for - Ground Engineering (Geotechnical, Geological, piling); Environmental (Contaminated Lands, Management, Remediation); OHS/WHS (Occupational Hygiene…” Source: RevenueBase Database · checked Sep 21, 2026
22	IA Engineering & Consultancy PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Engineering & Designing” Source: RevenueBase Database · checked Sep 21, 2026
23	Blackbird Commodity Partners	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Blackbird Commodity Partners is an independent financial advisor focused on the metals, mining and energy transition sectors.” Source: RevenueBase Database · checked Sep 21, 2026
24	Pile Design Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Pile Design Solutions Pty Ltd offers professional consulting engineering services to the construction industry.” Source: RevenueBase Database · checked Sep 21, 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: geological consultants. 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 geological consultants.
Partial evidence: Its own public description names part of geological consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geological consultants. 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 125 geological consultants based in Sydney, Australia

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Geological consultants based in Sydney, Australia at a glance

As of Sep 21, 2026

51.6%Verified-email coverage

13.4Average contacts per company

1-10Median size (employees)

254.4%Largest-city concentration · Perth

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole Australia list rather than for Sydney, so it is reported there. Company counts and contact totals on this page are exact for Sydney, over 125 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 geological consultants, 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 “geological consultants”. 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 geological consultants), 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 geological consultants, 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, 863 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 21, 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.

Geological consultants by metro in Australia

Geological consultants in Perth318
Geological consultants in Brisbane185
Geological consultants in Sydney125
Geological consultants in Melbourne121
Geological consultants in Adelaide55
Geological consultants in West Perth48
Geological consultants in Brisbane City28

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 geological consultants, 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 geological consultants are there based in Sydney, Australia?

RevenueBase identified 125 geological consultants 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 geological consultants?

Perth leads with 318 headquartered companies, followed by Brisbane (185) and Sydney (125).

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 863 verified decision-maker contacts tracked across these 125 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 21, 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.