Company lists · Data refreshed September 2026

Top 22 Oil and gas infrastructure builders based in Australia

Name: Oil and gas infrastructure builders based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 129 companies tracked

RevenueBase identified 129 oil and gas infrastructure builders headquartered in Australia as of September 2026 and tracks 3,144 professional contacts across them, including 1,050 with verified work emails. Perth is the largest hub.

This list covers oil and gas infrastructure builders 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

129Companies

3,144Contacts tracked

1,050Verified emails

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The 22 largest oil and gas infrastructure builders based in Australia

Ranked by team size

Top 22 of 129 oil and gas infrastructure builders 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 oil and gas infrastructure builders: 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	Nacap PTY LTD	Partial evidence	Doncaster, AustraliaHQ checked Sep 17, 2026	201-500	441 contacts →
	Partial evidence “Nacap is a leading energy infrastructure contractor with four decades of global experience in delivering large-scale and complex energy infrastructure projects to power…” Source: RevenueBase Database · checked Sep 17, 2026
2	Iplex Pipelines	Indirect evidence	North Sydney, AustraliaHQ checked Sep 17, 2026	501-1,000	373 contacts →
	Indirect evidence “With over 85 years’ experience, Iplex has an excellent understanding of the challenges the water industry faces.” Source: RevenueBase Database · checked Sep 17, 2026
3	Legeneering	Strong evidence	Perth, AustraliaHQ checked Sep 17, 2026	51-200	166 contacts →
	Strong evidence “Legeneering Australia is a dynamic Engineering Company specializing in repair of oil & gas facilities.” Source: RevenueBase Database · checked Sep 17, 2026
4	Global Engineering & Construction	Strong evidence	Brisbane, AustraliaHQ checked Sep 17, 2026	51-200	104 contacts →
	Strong evidence “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: RevenueBase Database · checked Sep 17, 2026
5	JAYDO	Partial evidence	Melbourne, AustraliaHQ checked Sep 17, 2026	51-200	85 contacts →
	Partial evidence “Jaydo is a dedicated water infrastructure construction business where every member of our experienced team is committed to delivering outstanding value and service to our many…” Source: RevenueBase Database · checked Sep 17, 2026
6	Brockman Engineering	Partial evidence	Norlane, AustraliaHQ checked Sep 17, 2026	51-200	62 contacts →
	Partial evidence “For over 100 years, Brockman Engineering has delivered critical infrastructure across Australia.” Source: RevenueBase Database · checked Sep 17, 2026
7	SEA GAS	Partial evidence	Adelaide, AustraliaHQ checked Sep 17, 2026	11-50	60 contacts →
	Partial evidence “Established in 2002, SEA Gas owns and operates a 700 km underground high-pressure natural gas transmission pipeline connecting the Otway and Bass Basins at Port Campbell in…” Source: RevenueBase Database · checked Sep 17, 2026
8	Ipipe Services, A Monadelphous Business	Strong evidence	Eagle Farm, AustraliaHQ checked Sep 17, 2026	51-200	52 contacts →
	Strong evidence “iPipe Services is a leading independent provider of specialist pipeline services to the oil, gas, mining and utility industries.” Source: RevenueBase Database · checked Sep 17, 2026
9	Mitchell Water Australia	Partial evidence	Docklands, AustraliaHQ checked Sep 17, 2026	51-200	44 contacts →
	Partial evidence “Mitchell Water Australia is a privately owned and operated, dedicated water and energy infrastructure construction company.” Source: RevenueBase Database · checked Sep 17, 2026
10	MOEC	Indirect evidence	Rocklea, AustraliaHQ checked Sep 17, 2026	51-200	40 contacts →
	Indirect evidence “Moec Water and Energy Moec is Australia's leading small to mid-size Pipeline installer in the Mining, Water and Energy sectors.” Source: RevenueBase Database · checked Sep 17, 2026
11	Obadare Group	Indirect evidence	Toowoomba, AustraliaHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “Obadare is a privately owned, Australasian specialist manufacture, machining and maintenance enterprise providing drilling and completions, oilfield engineering, general…” Source: RevenueBase Database · checked Sep 17, 2026
12	Saltire Infrastructure	Indirect evidence	O'connor, AustraliaHQ checked Sep 17, 2026	51-200	36 contacts →
	Indirect evidence “Saltire is a water industry focused engineered services provider specialise in system continuity that undertakes pipeline construction, repair, and maintenance works.” Source: RevenueBase Database · checked Sep 17, 2026
13	OSD	Indirect evidence	Brisbane, AustraliaHQ checked Sep 17, 2026	201-500	30 contacts →
	Indirect evidence “OSD is an experienced team of pipeline professionals dedicated to providing excellence in all areas of pipeline design, construction, commissioning, integrity assessment, and…” Source: RevenueBase Database · checked Sep 17, 2026
14	Linbeck Contractors PTY LTD	Partial evidence	Riverstone, AustraliaHQ checked Sep 17, 2026	51-200	27 contacts →
	Partial evidence “Linbeck is a privately owned company providing repairs & maintenance, civil construction and licensed plumbing services to asset owners in the gas and water industry.” Source: RevenueBase Database · checked Sep 17, 2026
15	YVE	Strong evidence	Sunshine West, AustraliaHQ checked Sep 17, 2026	51-200	27 contacts →
	Strong evidence “YVE is a high-performing water, sewer and gas contractor working across Victoria on land development and infrastructure projects.” Source: RevenueBase Database · checked Sep 17, 2026
16	Intelligas	Indirect evidence	Berrinba, AustraliaHQ checked Sep 17, 2026	51-200	25 contacts →
	Indirect evidence “IntelliGas, a Queensland-based innovator of targeted products and services that enhance production, minimise emissions and reduce costs across all aspects of gathering systems…” Source: RevenueBase Database · checked Sep 17, 2026
17	Pipecraft	Indirect evidence	Kewdale, AustraliaHQ checked Sep 17, 2026	51-200	20 contacts →
	Indirect evidence “Pipecraft is a leading specialist pipeline construction contractor servicing Australia and PNG.” Source: RevenueBase Database · checked Sep 17, 2026
18	Chief Group Australia	Indirect evidence	Maddingley, AustraliaHQ checked Sep 17, 2026	201-500	20 contacts →
	Indirect evidence “Since 2007 Chief Group has been providing outstanding results to industry defining projects across Australia.” Source: RevenueBase Database · checked Sep 17, 2026
19	Pructon	Indirect evidence	Brisbane, AustraliaHQ checked Sep 17, 2026	51-200	19 contacts →
	Indirect evidence “Pructon is a multi-disciplined engineering and construction company.” Source: RevenueBase Database · checked Sep 17, 2026
20	Dormway PTY LTD	Partial evidence	Wacol, AustraliaHQ checked Sep 17, 2026	51-200	18 contacts →
	Partial evidence “With over 40 years' experience successfully delivering civil infrastructure and pipeline projects, Dormway's reputation as leaders and problem-solvers is built on an unwavering…” Source: RevenueBase Database · checked Sep 17, 2026
21	Psah Group	Indirect evidence	Clontarf, AustraliaHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “At PSAH Group, we are dedicated to delivering innovative equipment, exceptional service, and tailored solutions to meet the evolving demands of the pipeline industry.” Source: RevenueBase Database · checked Sep 17, 2026
22	Farley Riggs	Indirect evidence	Green Fields, AustraliaHQ checked Sep 17, 2026	51-200	16 contacts →
	Indirect evidence “Farley Riggs traces its origins back over 20 years to 2004, when Pacific Oilfield Resources was founded as a Drill Stem Testing (DST) company.” 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: oil and gas infrastructure builders. 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 oil and gas infrastructure builders.
Partial evidence: Its own public description names part of oil and gas infrastructure builders, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name oil and gas infrastructure builders. 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 22 of 129 oil and gas infrastructure builders based in Australia

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Oil and gas infrastructure builders based in Australia at a glance

As of Sep 17, 2026

33.4%Verified-email coverage

24.4Average contacts per company

11-50Median size (employees)

12.4%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

10001+

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 129 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 oil and gas infrastructure builders, 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 “oil and gas infrastructure builders”. 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 oil and gas infrastructure builders), 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 oil and gas infrastructure builders, 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, 1,050 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.

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 oil and gas infrastructure builders, 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 oil and gas infrastructure builders are there based in Australia?

RevenueBase identified 129 oil and gas infrastructure builders 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?

Nacap PTY LTD, headquartered in Doncaster, tops this list with the largest team on record.

Which city has the most oil and gas infrastructure builders?

Perth leads with 16 headquartered companies, followed by Brisbane (12) and Melbourne (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 1,050 verified decision-maker contacts tracked across these 129 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.