Company lists · Data refreshed September 2026
Top 25 Heavy civil contractors based in Australia
RevenueBase identified 1,602 heavy civil contractors headquartered in Australia as of September 2026 and tracks 41,034 professional contacts across them, including 14,482 with verified work emails. Sydney is the largest hub.
This list covers heavy civil contractors 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 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.
The 25 largest heavy civil contractors based in Australia
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 5,171 contacts → | ||||
Partial evidence “CPB Contractors is a leading major contractor, trusted to build critical and complex infrastructure across Australia and New Zealand for a more connected, sustainable future.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 818 contacts → | ||||
Strong evidence “Seymour Whyte is a multi award-winning civil contractor that delivers major essential infrastructure across Australia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 810 contacts → | ||||
Partial evidence “Georgiou is a proudly Australian founded civil and building construction company with a reputation for excellence in delivering complex, multi-disciplined projects.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 777 contacts → | ||||
Indirect evidence “Icon is a globally connected, integrated construction group trusted to build what matters most.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 580 contacts → | ||||
Strong evidence “Winslow has become one of Australia’s leading civil construction contractors with offices in Victoria, Queensland, Northen NSW and South Australia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 563 contacts → | ||||
Indirect evidence “We’ve always been a construction company that believes in driving positive change – for clients, the communities we work in, and of course, our people – wherever they are in…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 543 contacts → | ||||
Partial evidence “Abergeldie is a locally owned contractor with 30 years industry experience in Australia and New Zealand.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 423 contacts → | ||||
Indirect evidence “Construction Sciences is a construction materials testing, geotechnical engineering, environmental consulting and specialised testing firm.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 388 contacts → | ||||
Indirect evidence “Shadforth continues to grow based on our reputation of “delivering quality infrastructure sooner”.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 296 contacts → | ||||
Partial evidence “Humes is a division of Holcim Australia and the nation's leading civil precast concrete manufacturer.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 275 contacts → | ||||
Indirect evidence “Daracon Group has a history of quality and strong performance across a broad range of construction activities including road, rail, concrete structures, landscaping, quarrying…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 220 contacts → | ||||
Strong evidence “Freyssinet is a versatile contractor that offers innovative solutions spanning from design to implementation for Specialist Civil Engineering and Structure Remediation projects.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 213 contacts → | ||||
Partial evidence “As a specialist infrastructure, construction and services contractor, Whittens provides clients with a single source solution at every stage of the construction cycle, from early…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 205 contacts → | ||||
Partial evidence “Ace Contractors Group Pty.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 198 contacts → | ||||
Indirect evidence “We offer insightful, original design thinking, implemented by a team with proven expertise to deliver flexible fit-for-purpose critical infrastructure solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 190 contacts → | ||||
Partial evidence “Exact Contracting operates in the Civil, Mining and Water Infrastructure Industries delivering innovative and cost-effective projects throughout Australia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 185 contacts → | ||||
Partial evidence “Shamrock Civil is a privately owned civil construction company, delivering services to the Defence & Government sectors, gas and mining, transport infrastructure and commercial.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 182 contacts → | ||||
Strong evidence “CMC is a privately owned civil infrastructure and mining sector contractor.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 174 contacts → | ||||
Strong evidence “Austral Construction is an Australian engineering and construction contractor specialising in complex civil, marine and rail infrastructure.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 165 contacts → | ||||
Partial evidence “Hall Contracting is Australia’s largest privately-owned dredging, civil and marine construction company with offices in South East Asia, the Pacific Islands and Australia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 163 contacts → | ||||
Partial evidence “McCosker have extensive experience delivering integrated civil construction projects, with expertise and vast experience in all aspects of bulk and detailed earthworks, structural…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 162 contacts → | ||||
Partial evidence “Wormall Contracting commenced operations in 1984, primarily as a specialist underground services installation contractor in Perth, Western Australia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 160 contacts → | ||||
Indirect evidence “Melchor offers an innovative and integrated approach to delivering large infrastructure and industrial projects in Perth Metro and remote locations.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 152 contacts → | ||||
Partial evidence “Bielby is a wholly-owned and operated Queensland based civil engineering company providing leading earthworks and infrastructure capabilities to clients across Australia.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 151 contacts → | ||||
Partial evidence “BKH Group is a specialist in formwork, concrete placements and scaffolding for the commercial, industrial, civil engineering, mining and residential sectors.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
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: heavy civil contractors. 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 heavy civil contractors.
- Partial evidence
- Its own public description names part of heavy civil contractors, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name heavy civil contractors. 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 1,602 heavy civil contractors based in Australia
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Heavy civil contractors based in Australia at a glance
As of Sep 16, 2026Companies by employee count
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 1,602 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 heavy civil contractors, 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 “heavy civil contractors”. 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 heavy civil contractors), 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 heavy civil contractors, 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, 14,482 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.
Heavy civil contractors by metro
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 heavy civil contractors, 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 heavy civil contractors are there based in Australia?
RevenueBase identified 1,602 heavy civil contractors 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?
CPB Contractors, headquartered in North Sydney, tops this list with the largest team on record.
Which city has the most heavy civil contractors?
Sydney leads with 102 headquartered companies, followed by Melbourne (71) and Brisbane (51).
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 14,482 verified decision-maker contacts tracked across these 1,602 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.
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