Company lists · Data refreshed September 2026

Top 20 Offshore platform installation services based in Australia

Name: Offshore platform installation services based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 64 companies tracked

RevenueBase identified 64 offshore platform installation services headquartered in Australia as of September 2026 and tracks 3,791 professional contacts across them, including 1,208 with verified work emails and 194 with mobile numbers. Perth is the largest hub.

This list covers offshore platform installation services 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

64Companies

3,791Contacts tracked

1,208Verified emails

194Mobile numbers

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The 20 largest offshore platform installation services based in Australia

Ranked by team size

Top 20 of 64 offshore platform installation services based in Australia, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names offshore platform installation services: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Boskalis Offshore EnergyIndirect evidence	Perth, AustraliaHQ checked Sep 5, 2026	201-500	1,029
	Source: company website · checked Sep 5, 2026
2	GO OffshorePartial evidence	West Perth, AustraliaHQ checked Sep 5, 2026	201-500	576
	“GO OFFSHORE is an international energy services company, specialising in marine services to the offshore industry.” Source: company website · checked Sep 5, 2026
3	Bhagwan MarinePartial evidence	Perth, AustraliaHQ checked Sep 5, 2026	501-1,000	376
	“Bhagwan Marine is Australia's largest marine solutions provider operating in the offshore energy, subsea, ports & inshore and defence sectors.” Source: company website · checked Sep 5, 2026
4	Programmed OffshorePartial evidence	West Perth, AustraliaHQ checked Sep 5, 2026	1,001-5,000	330
	“Programmed Offshore specialises in providing quality marine, drilling, construction, maintenance and catering personnel.” Source: company website · checked Sep 5, 2026
5	Walz GroupIndirect evidence	Gladstone, AustraliaHQ checked Sep 5, 2026	201-500	177
	“An industry leader in specialist construction and maintenance services for the resources, energy and infrastructure sectors.” Source: company website · checked Sep 5, 2026
6	LegeneeringIndirect evidence	Perth, AustraliaHQ checked Sep 5, 2026	51-200	166
	“Legeneering Australia is a dynamic Engineering Company specializing in repair of oil & gas facilities.” Source: company website · checked Sep 5, 2026
7	Global Engineering & ConstructionIndirect evidence	Brisbane, AustraliaHQ checked Sep 5, 2026	51-200	104
	“As a leading provider of construction and maintenance services within the oil, gas and energy sectors, GEC provides its clients with a multi-disciplinary high quality operation…” Source: company website · checked Sep 5, 2026
8	Muehlhan Wind ServicePartial evidence	Mount Gambier, AustraliaHQ checked Sep 5, 2026	51-200	91
	“Professional Wind Services (PWS or ProWind) delivers the complete craneage and installation SOW for the construction of wind farm projects.” Source: company website · checked Sep 5, 2026
9	WPFIndirect evidence	Naval Base, AustraliaHQ checked Sep 5, 2026	51-200	44
	“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: company website · checked Sep 5, 2026
10	Obadare GroupIndirect evidence	Toowoomba, AustraliaHQ checked Sep 5, 2026	11-50	38
	“Obadare is a privately owned, Australasian specialist manufacture, machining and maintenance enterprise providing drilling and completions, oilfield engineering, general…” Source: company website · checked Sep 5, 2026
11	Commercial Marine Group PTY LTDIndirect evidence	Murarrie, AustraliaHQ checked Sep 5, 2026	11-50	33
	“At Commercial Marine Group, we provide trusted, innovative and sustainable marine construction solutions, ensuring the safety, longevity, and success of critical infrastructure.” Source: company website · checked Sep 5, 2026
12	Wenco PTY LTDIndirect evidence	O'connor, AustraliaHQ checked Sep 5, 2026	51-200	28
	“In 1974 Mario Peca (the founder and Managing Director) started a fabrication company in O’Connor Western Australia, and has developed it into one of Australia’s pre-eminent heavy…” Source: company website · checked Sep 5, 2026
13	Edms AustraliaIndirect evidence	Bungalow, AustraliaHQ checked Sep 5, 2026	51-200	24
	“EDMS Australia (EDMS) is an Engineering, Construction and Project Management Company, established on the 1st December 2005.” Source: company website · checked Sep 5, 2026
14	Wilsons Pipe FabricationIndirect evidence	Cockburn Central, AustraliaHQ checked Sep 5, 2026	11-50	14
	“We offer a fully integrated service to customers combining a manufacturing and fabrication facility with the capacity to install service and repair complex and specialised…” Source: company website · checked Sep 5, 2026
15	GeomarineIndirect evidence	Wangara, AustraliaHQ checked Sep 5, 2026	11-50	10
	“Geomarine is an employee-owned, Australian-grown marine construction company delivering services to clients in the Transport, Defence and Infrastructure sectors.” Source: company website · checked Sep 5, 2026
16	Oceania Engineering ServicesPartial evidence	Landsdale, AustraliaHQ checked Sep 5, 2026	11-50	10
	“Oceania Engineering Services Pty Ltd (OES) is an Australian company specialising in Marine, Energy and Offshore HVAC & R systems.” Source: company website · checked Sep 5, 2026
17	Bellingham Marine AustraliaIndirect evidence	Brisbane, AustraliaHQ checked Sep 5, 2026	201-500	10
	“With over 65+ years of experience and having constructed many millions of floating systems worldwide, we’ve gained invaluable knowledge about what works best.” Source: company website · checked Sep 5, 2026
18	Shannon Group ServicesIndirect evidence	Silverwater, AustraliaHQ checked Sep 5, 2026	11-50	9
	“WE STRIVE TO DELIVER SAFE OPERATIONS WITH ACCURACY AND INTEGRITY Shannon Group Services is a specialist company providing engineering, construction and maintenance capabilities…” Source: company website · checked Sep 5, 2026
19	Petroleum & Mining EngineeringIndirect evidence	Perth, AustraliaHQ checked Sep 5, 2026	11-50	7
	“PAME is a specialised oil and gas engineering fabricator accredited by Det Norske Veritas (DNV) & Joint Accreditation System for Australia and New Zealand (JAS ANZ) for: design…” Source: company website · checked Sep 5, 2026
20	Diverse Engineering WA PTY LTDIndirect evidence	Perth, AustraliaHQ checked Sep 5, 2026	11-50	7
	“Diverse Engineering is a proudly Western Australian owned and operated, multi-disciplined engineering company that provides an array of services to the energy, industrial, oil and…” Source: company website · checked Sep 5, 2026

Showing 20 of 64 offshore platform installation services based in Australia

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Offshore platform installation services based in Australia at a glance

As of Sep 5, 2026

11-50Median size (employees)

PerthLargest hub · 20 HQs

194Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Verified emails by last verification

0–30

1,128

31–60

61–90

90–180

180+

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 platform installation services, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 platform installation services”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among offshore platform installation services, 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 an evidence 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, 1,208 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 5, 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.

Frequently asked

How many offshore platform installation services are there based in Australia?

RevenueBase identified 64 offshore platform installation services 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 platform installation services?

Perth leads with 20 headquartered companies, followed by West Perth (5) and Brisbane (2).

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 1,208 verified decision-maker contacts tracked across these 64 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 5, 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 SmartSearch, 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.