Company lists · Data refreshed September 2026

Top 25 Engineering companies based in Australia

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

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 5,615 companies tracked

This directory lists 5,615 engineering companies based in Australia, with 122,233 contacts and 50,281 email addresses. The list includes companies across engineering disciplines, and Sydney is the single most-represented city among the companies on the list. Use it to identify potential suppliers, partners, and sales prospects as of September 2026.

Engineering companies apply scientific, mathematical, and technical principles to design, develop, test, and manage products, systems, structures, or industrial processes. This list covers companies that provide engineering design, consulting, testing, project management, or related technical services. Ranked by team size, largest first. Data current as of September 6, 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 6, 2026 86% judged on-target in blind review

5,615Companies

122,233Contacts tracked

50,281Verified emails

6,119Mobile numbers

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The 25 largest engineering companies based in Australia

Ranked by team size

Top 25 of 5,615 engineering companies based in Australia, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to engineering 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	UGL	Strong evidence	North Sydney, AustraliaHQ checked Sep 6, 2026	5,001-10,000	5,965 contacts →
	“UGL is CIMIC Group's specialist end-to-end engineering, services and operations provider.” Source: company website · checked Sep 6, 2026
2	SMEC	Strong evidence	North Sydney, AustraliaHQ checked Sep 6, 2026	5,001-10,000	5,231 contacts →
	“SMEC is a global engineering, management and development consultancy with a 70-year history of delivering advanced solutions on a global scale across urban development…” Source: company website · checked Sep 6, 2026
3	Monadelphous	Strong evidence	Perth, AustraliaHQ checked Sep 6, 2026	5,001-10,000	4,996 contacts →
	“Monadelphous is a leading Australian ASX-200 engineering group providing construction, maintenance and industrial services to the resources, energy and infrastructure sectors.” Source: company website · checked Sep 6, 2026
4	Ausenco	Indirect evidence	South Brisbane, AustraliaHQ checked Sep 6, 2026	1,001-5,000	3,826 contacts →
	“We transform complex challenges into sustainable solutions for the minerals & metals and industrial sectors worldwide.” Source: company website · checked Sep 6, 2026
5	WSP In Australia	Strong evidence	Sydney, AustraliaHQ checked Sep 6, 2026	10001+	3,132 contacts →
	“We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.” Source: company website · checked Sep 6, 2026
6	Lycopodium	Strong evidence	Perth, AustraliaHQ checked Sep 6, 2026	1,001-5,000	1,143 contacts →
	“Lycopodium is an Australian headquartered engineering and project management consultancy which provides a complete range of services for the evaluation, development…” Source: company website · checked Sep 6, 2026
7	Cardno	Indirect evidence	Fortitude Valley, AustraliaHQ checked Sep 6, 2026	1,001-5,000	985 contacts →
	“Cardno is now officially Stantec.” Source: company website · checked Sep 6, 2026
8	Robert Bird Group	Strong evidence	Brisbane, AustraliaHQ checked Sep 6, 2026	501-1,000	872 contacts →
	“Robert Bird Group (RBG), member of the Surbana Jurong Group, is a specialist structural, civil and construction engineering consultancy with over 800 employees across 12 offices…” Source: company website · checked Sep 6, 2026
9	Fredon	Indirect evidence	Silverwater, AustraliaHQ checked Sep 6, 2026	1,001-5,000	760 contacts →
	“Fredon is an Australian leader in Electrical, HVAC, Infrastructure and Technology services, backed by 24/7 national maintenance capability.” Source: company website · checked Sep 6, 2026
10	Primero	Strong evidence	Osborne Park, AustraliaHQ checked Sep 6, 2026	1,001-5,000	726 contacts →
	“Primero is a leading multidisciplinary engineering, procurement, and construction company specialising in delivering comprehensive, fully integrated solutions to the mining…” Source: company website · checked Sep 6, 2026
11	Future Generation Joint Venture - Fgjv	Indirect evidence	Cooma, AustraliaHQ checked Sep 6, 2026	1,001-5,000	695 contacts →
	“Future Generation Joint Venture (FGJV) is the principal contractor for Snowy Hydro’s Snowy 2.0, Australia’s largest committed renewable energy project.” Source: company website · checked Sep 6, 2026
12	Besix Watpac	Indirect evidence	Fortitude Valley Qld, AustraliaHQ checked Sep 6, 2026	501-1,000	671 contacts →
	“With over a century of heritage in Australia, BESIX Watpac brings deep local knowledge, proven experience, and trusted industry relationships to every project.” Source: company website · checked Sep 6, 2026
13	Ampcontrol	Indirect evidence	Tomago, AustraliaHQ checked Sep 6, 2026	501-1,000	650 contacts →
	“Ampcontrol is challenging the future by solving the most complex problems in energy.” Source: company website · checked Sep 6, 2026
14	Nilsen Group	Indirect evidence	Mulgrave, AustraliaHQ checked Sep 6, 2026	1,001-5,000	624 contacts →
	“Nilsen is a leading electro-technology company operating throughout Australia, with offices in all mainland capital cities.” Source: company website · checked Sep 6, 2026
15	Nova Systems	Strong evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	501-1,000	599 contacts →
	“Built on 25 years of test and evaluation and engineering experience, Nova Systems designs, integrates and delivers complex programs for Defence, emergency services and civil…” Source: company website · checked Sep 6, 2026
16	WGA Wallbridge Gilbert Aztec	Strong evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	501-1,000	586 contacts →
	“We like to think of ourselves as one of the leading Engineering and Project Management companies across Australia and New Zealand.” Source: company website · checked Sep 6, 2026
17	Goodline	Strong evidence	Kawana Waters, AustraliaHQ checked Sep 6, 2026	501-1,000	570 contacts →
	“Goodline is an Australian owned and based company established in by John and Catherine Kennedy for the provision of engineering, construction and maintenance services nationwide…” Source: company website · checked Sep 6, 2026
18	NDY	Strong evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	501-1,000	563 contacts →
	“We provide engineering and advisory services for buildings and public spaces.” Source: company website · checked Sep 6, 2026
19	Northrop Consulting Engineers	Strong evidence	Sydney, AustraliaHQ checked Sep 6, 2026	501-1,000	522 contacts →
	“We partner with builders, architects, project managers and developers to deliver pragmatic engineering solutions for the land and built environment.” Source: company website · checked Sep 6, 2026
20	TTW	Strong evidence	North Sydney, AustraliaHQ checked Sep 6, 2026	501-1,000	472 contacts →
	“Great engineering starts with great people.” Source: company website · checked Sep 6, 2026
21	ADP Consulting	Strong evidence	Melbourne, AustraliaHQ checked Sep 6, 2026	201-500	468 contacts →
	“ADP Consulting, an Ayesa company, is a sustainability-led engineering consultancy on a quest to inspire a better world through influence and design.” Source: company website · checked Sep 6, 2026
22	FYFE	Strong evidence	Adelaide, AustraliaHQ checked Sep 6, 2026	501-1,000	468 contacts →
	“Fyfe is an Australian professional services firm that delivers value through integrated engineering, environmental, planning and surveying services.” Source: company website · checked Sep 6, 2026
23	Douglas Partners	Strong evidence	West Ryde, AustraliaHQ checked Sep 6, 2026	501-1,000	466 contacts →
	“Welcome to Douglas Partners Pty Ltd, a leading engineering consultancy specialising in geotechnics, rock mechanics, environment, groundwater, earthworks and geophysics.” Source: company website · checked Sep 6, 2026
24	APD Global	Indirect evidence	Perth, AustraliaHQ checked Sep 6, 2026	1,001-5,000	455 contacts →
	“We are APD Global.” Source: company website · checked Sep 6, 2026
25	RSGX	Strong evidence	Rydalmere, AustraliaHQ checked Sep 6, 2026	1,001-5,000	455 contacts →
	“RSGx is a trusted partner, providing innovative mechanical and electrical construction and engineering solutions with a focus on powering energy transition.” Source: company website · checked Sep 6, 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: engineering 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 engineering companies.
Partial evidence: Its own public description names part of engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering 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 5,615 engineering companies based in Australia

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Engineering companies based in Australia at a glance

As of Sep 6, 2026

41.1%Verified-email coverage

5.0%Mobile-number coverage

21.8Average contacts per company

1-10Median size (employees)

7.7%Largest-city concentration · Sydney

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

2,805

11-50

1,914

51-200

640

201-500

152

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

46,3440–30

3,70031–60

2061–90

890–180

209180+

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 engineering 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 “engineering 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 engineering 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 engineering 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, 50,281 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 6, 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.

Engineering companies by metro

Frequently asked

How many engineering companies are based in Australia?

The directory lists 5,615 engineering companies based in Australia as of September 2026.

What services do engineering companies provide?

Engineering companies provide services such as design, consulting, testing, project management, and technical support across disciplines and industries.

How can I find contacts at engineering companies?

This directory includes 122,233 contacts and 50,281 email addresses associated with engineering companies.

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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.