Company lists · Data refreshed September 2026

Top 21 Offshore construction contractors based in Australia

Name: Offshore construction contractors based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 113 companies tracked

RevenueBase identified 113 offshore construction contractors headquartered in Australia as of September 2026 and tracks 4,555 professional contacts across them, including 1,273 with verified work emails. Perth is the largest hub.

This list covers offshore construction 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 17, 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 17, 2026 86% judged on-target in blind review

113Companies

4,555Contacts tracked

1,273Verified emails

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The 21 largest offshore construction contractors based in Australia

Ranked by team size

Top 21 of 113 offshore construction contractors based in Australia, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to offshore construction contractors: 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	Boskalis Offshore Energy	Indirect evidence	Perth, AustraliaHQ checked Sep 17, 2026	201-500	1,029 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
2	GO Offshore	Partial evidence	West Perth, AustraliaHQ checked Sep 17, 2026	201-500	576 contacts →
	Partial evidence “GO OFFSHORE is an international energy services company, specialising in marine services to the offshore industry.” Source: RevenueBase Database · checked Sep 17, 2026
3	Bhagwan Marine	Partial evidence	Perth, AustraliaHQ checked Sep 17, 2026	501-1,000	376 contacts →
	Partial evidence “Bhagwan Marine is Australia's largest marine solutions provider operating in the offshore energy, subsea, ports & inshore and defence sectors.” Source: RevenueBase Database · checked Sep 17, 2026
4	Programmed Offshore	Strong evidence	West Perth, AustraliaHQ checked Sep 17, 2026	1,001-5,000	330 contacts →
	Strong evidence “Programmed Offshore specialises in providing quality marine, drilling, construction, maintenance and catering personnel.” Source: RevenueBase Database · checked Sep 17, 2026
5	Australian Offshore Solutions PTY LTD	Strong evidence	Applecross, AustraliaHQ checked Sep 17, 2026	501-1,000	273 contacts →
	Strong evidence “Australian Offshore Solutions Australian Offshore Solutions offers a diverse range of specialised marine services to the offshore oil and gas and construction industries.” Source: RevenueBase Database · checked Sep 17, 2026
6	Cyan Renewables	Partial evidence	Perth, AustraliaHQ checked Sep 17, 2026	1,001-5,000	252 contacts →
	Partial evidence “Cyan Renewables (rebranded from MMA Offshore in July 2025) is a leading provider of marine and subsea services supporting the global energy transition.” Source: RevenueBase Database · checked Sep 17, 2026
7	Total AMS	Indirect evidence	North Fremantle, AustraliaHQ checked Sep 17, 2026	201-500	198 contacts →
	Indirect evidence “For more than 25 years, TAMS has partnered with clients through collaborative delivery models, applying specialist expertise to construct and maintain critical marine and port…” Source: RevenueBase Database · checked Sep 17, 2026
8	Walz Group	Partial evidence	Gladstone, AustraliaHQ checked Sep 17, 2026	201-500	177 contacts →
	Partial evidence “An industry leader in specialist construction and maintenance services for the resources, energy and infrastructure sectors.” Source: RevenueBase Database · checked Sep 17, 2026
9	Maritime Constructions	Partial evidence	Port Adelaide, AustraliaHQ checked Sep 17, 2026	51-200	124 contacts →
	Partial evidence “Maritime Constructions is a complete provider of specialist marine infrastructure solutions.” Source: RevenueBase Database · checked Sep 17, 2026
10	Shelf Subsea	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 17, 2026	51-200	119 contacts →
	Indirect evidence “SHELF is a totally independent commercial diving, engineering, project management and marine support & logistics company.” Source: RevenueBase Database · checked Sep 17, 2026
11	Brady Marine & Civil	Partial evidence	Brisbane, AustraliaHQ checked Sep 17, 2026	51-200	56 contacts →
	Partial evidence “Since 2010, Brady Marine & Civil have proudly delivered design and construction solutions for over water works, from simple marine structures to complex civil infrastructure…” Source: RevenueBase Database · checked Sep 17, 2026
12	WPF	Indirect evidence	Naval Base, AustraliaHQ checked Sep 17, 2026	51-200	44 contacts →
	Indirect evidence “WPF offer a fully integrated service to clients, combining a manufacturing and fabrication facility with the capacity to install, service and repair specialised equipment, both…” Source: RevenueBase Database · checked Sep 17, 2026
13	JFD Australia	Indirect evidence	Perth, AustraliaHQ checked Sep 17, 2026	1,001-5,000	38 contacts →
	Indirect evidence “Confidence under pressure.” Source: RevenueBase Database · checked Sep 17, 2026
14	SMC Marine	Strong evidence	Rozelle, AustraliaHQ checked Sep 17, 2026	51-200	36 contacts →
	Strong evidence “Established in 2001, SMC Marine is a maritime contractor with a wide range of marine construction capabilities.” Source: RevenueBase Database · checked Sep 17, 2026
15	Commercial Marine Group PTY LTD	Partial evidence	Murarrie, AustraliaHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “At Commercial Marine Group, we provide trusted, innovative and sustainable marine construction solutions, ensuring the safety, longevity, and success of critical infrastructure.” Source: RevenueBase Database · checked Sep 17, 2026
16	Edms Australia	Partial evidence	Bungalow, AustraliaHQ checked Sep 17, 2026	51-200	24 contacts →
	Partial evidence “EDMS Australia (EDMS) is an Engineering, Construction and Project Management Company, established on the 1st December 2005.” Source: RevenueBase Database · checked Sep 17, 2026
17	MMA Offshore Limited	Partial evidence	Perth, AustraliaHQ checked Sep 17, 2026	1,001-5,000	22 contacts →
	Partial evidence “At MMA Offshore, we specialise in providing high-specification vessels and a comprehensive suite of marine and subsea services to the offshore energy and wider maritime industries.” Source: RevenueBase Database · checked Sep 17, 2026
18	Indianic Group	Partial evidence	Henderson, AustraliaHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “Indianic Group is a Marine Services, Construction and Defence Service provider in Australia.” Source: RevenueBase Database · checked Sep 17, 2026
19	Polaris Marine Constructions PTY LTD	Indirect evidence	Rozelle, AustraliaHQ checked Sep 17, 2026	11-50	18 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
20	The Jetty Specialist	Partial evidence	Bells Creek, AustraliaHQ checked Sep 17, 2026	51-200	16 contacts →
	Partial evidence “The Jetty Specialist offers turnkey marine construction solutions for marine industries.” Source: RevenueBase Database · checked Sep 17, 2026
21	System Electric PTY LTD	Indirect evidence	Perth, AustraliaHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence “System Electric was first incorporated in Western Australia in October 2002, and commenced business at the new Australian Marine complex in Henderson, twenty four kilometres south…” Source: RevenueBase Database · checked Sep 17, 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: offshore construction 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 offshore construction contractors.
Partial evidence: Its own public description names part of offshore construction contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore construction 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 21 of 113 offshore construction contractors based in Australia

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Offshore construction contractors based in Australia at a glance

As of Sep 17, 2026

27.9%Verified-email coverage

40.3Average contacts per company

11-50Median size (employees)

24.8%Largest-city concentration · Perth

Sep 17, 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 worldwide rather than for Australia, so it is reported there. Company counts and contact totals on this page are exact for Australia, over 113 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 offshore construction 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 “offshore construction 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 offshore construction 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 offshore construction 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, 1,273 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 17, 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.

Offshore construction contractors by metro

Offshore construction contractors in Perth28

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 offshore construction 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 offshore construction contractors are there based in Australia?

RevenueBase identified 113 offshore construction 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?

Boskalis Offshore Energy, headquartered in Perth, tops this list with the largest team on record.

Which city has the most offshore construction contractors?

Perth leads with 28 headquartered companies, followed by West Perth (6) and Brisbane (4).

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 1,273 verified decision-maker contacts tracked across these 113 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 17, 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.