Company lists · Data refreshed September 2026

Top 25 Geotechnical construction firms based in Sydney, Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 74 companies tracked

RevenueBase identified 74 geotechnical construction firms headquartered in Sydney, Australia as of September 2026 and tracks 598 professional contacts across them, including 210 with verified work emails. Sydney is the largest hub.

This list covers geotechnical construction 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 16, 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 16, 2026 86% judged on-target in blind review

74Companies

598Contacts tracked

210Verified emails

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The 25 largest geotechnical construction firms based in Sydney, Australia

Ranked by team size

Top 25 of 74 geotechnical construction firms based in Sydney, Australia, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical construction 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	Chalouhi	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	67 contacts →
	Partial evidence “Chalouhi is a leading civil engineering and construction company with extensive experience in the industry.” Source: RevenueBase Database · checked Sep 16, 2026
2	Burton Contractors PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	65 contacts →
	Indirect evidence “Burton Contractors is a multi-disciplined Civil Engineering Contractor approaching 200 employees and a fleet of more than 100 pieces of plant.” Source: RevenueBase Database · checked Sep 16, 2026
3	ACE Civil PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 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 16, 2026
4	Witt Consulting	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	43 contacts →
	Partial evidence “Specialist engineers consulting in the fields of temporary works, structural, geotechnical and heritage reuse.” Source: RevenueBase Database · checked Sep 16, 2026
5	Cono Services	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	35 contacts →
	Partial evidence “At CONO Services, we are a leading provider of comprehensive civil construction solutions, specialising in demolition, remediation, excavation, civil construction, and plant hire…” Source: RevenueBase Database · checked Sep 16, 2026
6	Australian Piling Group	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	28 contacts →
	Indirect evidence “Australian Piling Group (APG) is one of the fastest growing piling contractors in Australia.” Source: RevenueBase Database · checked Sep 16, 2026
7	DSA Contracting PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “At DSA Contracting our core values are quality, honesty and reputation, all traits that are proven with repeat business.” Source: RevenueBase Database · checked Sep 16, 2026
8	Beck Engineering PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 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 16, 2026
9	Whyte Civil	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	15 contacts →
	Partial evidence “Whyte Civil Pty Ltd is a civil construction company based in Sydney, Australia, delivering a comprehensive range of in-ground building services and civil construction along with…” Source: RevenueBase Database · checked Sep 16, 2026
10	Antoun	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	14 contacts →
	Partial evidence “We are an internationally diverse construction and engineering business that focuses on bringing advanced technologies and innovative solutions to our clients and the broader…” Source: RevenueBase Database · checked Sep 16, 2026
11	Aargus PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 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 16, 2026
12	Cirillo Civil Group Australia PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	11 contacts →
	Partial evidence “Cirillo Civil Group is a full-service civil construction company, specialising in site remediation, soft-scape landscaping, bulk earthworks, detailed excavation and…” Source: RevenueBase Database · checked Sep 16, 2026
13	Concrete Engineering Solutions	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence “Concrete Engineering Services is specialised engineering contract.” Source: RevenueBase Database · checked Sep 16, 2026
14	Soilsrock Engineering PTY LTD	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial 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 16, 2026
15	Detailed Excavations Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	8 contacts →
	Indirect evidence “We are an earthmoving contractor specialising in the civil sector.” Source: RevenueBase Database · checked Sep 16, 2026
16	Sonic GEO	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	51-200	8 contacts →
	Partial 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 16, 2026
17	Fratelli Group Landscape & Civil	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	6 contacts →
	Partial evidence “Fratelli Group was established by brothers Benjamin and Daniel Zappia, whom have a combined 20 years’ experience in all aspects of soft and hard landscape construction which…” Source: RevenueBase Database · checked Sep 16, 2026
18	Aitken Civil Engineering	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial 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 16, 2026
19	Empcon Building Group	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	4 contacts →
	Partial evidence “Empcon is a Sydney-based company with over 20 years of combined experience we service residential, commercial, and civil construction work.” Source: RevenueBase Database · checked Sep 16, 2026
20	Concrete Future	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect 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 16, 2026
21	CNC Civil	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	4 contacts →
	Partial evidence “Civil Construction” Source: RevenueBase Database · checked Sep 16, 2026
22	IA Engineering & Consultancy PTY LTD	Indirect evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	4 contacts →
	Indirect evidence “Engineering & Designing” Source: RevenueBase Database · checked Sep 16, 2026
23	DXJ Recruitment	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 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 16, 2026
24	Pile Design Solutions	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Pile Design Solutions Pty Ltd offers professional consulting engineering services to the construction industry.” Source: RevenueBase Database · checked Sep 16, 2026
25	North Shore Paving Company	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	11-50	3 contacts →
	Partial evidence “NORTH SHORE PAVING CO PTY LTD is a Civil Engineering Company specialising in the construction of roads, car parks, playing fields, earthworks (including excavation), drainage…” Source: RevenueBase Database · checked Sep 16, 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 construction 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 construction firms.
Partial evidence: Its own public description names part of geotechnical construction firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical construction 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 25 of 74 geotechnical construction firms based in Sydney, Australia

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Geotechnical construction firms based in Sydney, Australia at a glance

As of Sep 16, 2026

35.1%Verified-email coverage

8.1Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Sydney

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 74 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 geotechnical construction 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 construction 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 construction 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 construction 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, 210 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 16, 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 construction firms by metro in Australia

Geotechnical construction firms in Sydney74
Geotechnical construction firms in Melbourne55
Geotechnical construction firms in Brisbane36
Geotechnical construction firms in Perth33

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 construction 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 construction firms are there based in Sydney, Australia?

RevenueBase identified 74 geotechnical construction 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?

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

Which city has the most geotechnical construction firms?

Sydney leads with 74 headquartered companies, followed by Melbourne (55) and Brisbane (36).

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 210 verified decision-maker contacts tracked across these 74 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 16, 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.