Company lists · Data refreshed September 2026

Top 25 Plumbing design build firms based in Australia

Name: Plumbing design build firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 524 companies tracked

RevenueBase identified 524 plumbing design build firms headquartered in Australia as of September 2026 and tracks 2,166 professional contacts across them, including 691 with verified work emails. Sydney is the largest hub.

This list covers plumbing design build firms 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 20, 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 20, 2026 86% judged on-target in blind review

524Companies

2,166Contacts tracked

691Verified emails

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The 25 largest plumbing design build firms based in Australia

Ranked by team size

Top 25 of 524 plumbing design build firms based in Australia, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to plumbing design build firms: 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	Planet Plumbing Group	Partial evidence	Campsie, AustraliaHQ checked Sep 20, 2026	201-500	135 contacts →
	Partial evidence “Planet Plumbing is an Australian-owned private company with various projects completed throughout Australia.” Source: RevenueBase Database · checked Sep 20, 2026
2	Cooke & Dowsett Plumbing Group	Indirect evidence	Keilor Park, AustraliaHQ checked Sep 20, 2026	201-500	115 contacts →
	Indirect evidence “Cooke & Dowsett was founded in 2008 when Chadd Cooke partnered with Scott Dowsett, combining decades of industry expertise to establish a business built on quality, innovation…” Source: RevenueBase Database · checked Sep 20, 2026
3	Hindmarsh Plumbing	Strong evidence	Hindmarsh, AustraliaHQ checked Sep 20, 2026	51-200	54 contacts →
	Strong evidence “Established in 1973, Hindmarsh Plumbing employs over 140 staff including plumbers, apprentices, designers and supporting office roles.” Source: RevenueBase Database · checked Sep 20, 2026
4	Dynamic Trade Solutions	Partial evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	51-200	43 contacts →
	Partial evidence “At Dynamic Trade Solutions we pride ourselves on the delivery of comprehensive, state of the art solutions to all of your electrical and plumbing needs.” Source: RevenueBase Database · checked Sep 20, 2026
5	Chadoak PTY LTD	Partial evidence	Clayton, AustraliaHQ checked Sep 20, 2026	51-200	42 contacts →
	Partial evidence “Chadoak is a privately owned Victorian infrastructure and specialist plumbing contractor delivering complex projects across Melbourne and regional Victoria.” Source: RevenueBase Database · checked Sep 20, 2026
6	Kennedys Group	Indirect evidence	North Geelong, AustraliaHQ checked Sep 20, 2026	51-200	36 contacts →
	Indirect evidence “For over 50 years, Kennedys Group has cared for the spaces and systems Victorians use to live, work and learn.” Source: RevenueBase Database · checked Sep 20, 2026
7	Brown & Moodie	Partial evidence	Padstow, AustraliaHQ checked Sep 20, 2026	201-500	31 contacts →
	Partial evidence “Brown and Moodie are proudly regarded as the foremost provider of mechanical and hydraulic plumbing services for large infrastructure projects in the country.” Source: RevenueBase Database · checked Sep 20, 2026
8	Wilson Plumbing And Drainage	Partial evidence	Preston, AustraliaHQ checked Sep 20, 2026	51-200	27 contacts →
	Partial evidence “Wilson Plumbing and Drainage has made its name in the plumbing industry as being a business that offers exceptional reliability and worth, whilst always maintaining the highest…” Source: RevenueBase Database · checked Sep 20, 2026
9	Complete Plumbing Contracting	Partial evidence	Moorabbin, AustraliaHQ checked Sep 20, 2026	51-200	24 contacts →
	Partial evidence “Complete Plumbing Contracting was founded by Ben Young in 1997.” Source: RevenueBase Database · checked Sep 20, 2026
10	Plumbing & Pipeline Solutions SA PTY LTD	Partial evidence	Marleston, AustraliaHQ checked Sep 20, 2026	51-200	22 contacts →
	Partial evidence “No other company in South Australia offers a range of plumbing and pipeline solutions to match PPS.” Source: RevenueBase Database · checked Sep 20, 2026
11	H L Mullane & SON PTY LTD	Partial evidence	Sandgate, AustraliaHQ checked Sep 20, 2026	201-500	21 contacts →
	Partial evidence “Mullane have provided Peace of Mind, Right on Time to the Newcastle, Hunter and Central Coast since 1925, by delivering the highest quality plumbing, drainage, gas, roofing and…” Source: RevenueBase Database · checked Sep 20, 2026
12	Banhams WA	Indirect evidence	Ocean Reef, AustraliaHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “We are committed to delivering quality advice, workmanship and exceeding client expectations.” Source: RevenueBase Database · checked Sep 20, 2026
13	Axis Maintenance Services	Indirect evidence	Padstow, AustraliaHQ checked Sep 20, 2026	51-200	20 contacts →
	Indirect evidence “Axis Maintenance Services is part of the Axis Services Group.” Source: RevenueBase Database · checked Sep 20, 2026
14	Howrah Plumbing	Partial evidence	Hobart, AustraliaHQ checked Sep 20, 2026	11-50	19 contacts →
	Partial evidence “Here at Howrah Plumbing, your plumbing is our priority.” Source: RevenueBase Database · checked Sep 20, 2026
15	MI Plumbers	Indirect evidence	Osborne Park, AustraliaHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect evidence “MI Plumbers specialises in the commercial sector and has extensive expertise in all levels of the industry, from new shopping centres, hotels, high rise developments and hospitals…” Source: RevenueBase Database · checked Sep 20, 2026
16	Central Plumbing Group	Strong evidence	Alexandria, AustraliaHQ checked Sep 20, 2026	51-200	18 contacts →
	Strong evidence “Central Plumbing Group specialises in the design, installation and maintenance of hydraulic services for commercial construction projects.” Source: RevenueBase Database · checked Sep 20, 2026
17	Atlantic Plumbing Services & FMD	Partial evidence	Artarmon, AustraliaHQ checked Sep 20, 2026	51-200	18 contacts →
	Partial evidence “With its clients at the forefront, Atlantic Plumbing has gained a reputation as a market leader in the commercial maintenance plumbing sector by providing their client’s with the…” Source: RevenueBase Database · checked Sep 20, 2026
18	Jennings Plumbing Services PTY LTD	Partial evidence	Artarmon, AustraliaHQ checked Sep 20, 2026	11-50	18 contacts →
	Partial evidence “Jennings Plumbing Services has been in business for over 20 years.” Source: RevenueBase Database · checked Sep 20, 2026
19	Dyfa Group	Partial evidence	Kunda Park, AustraliaHQ checked Sep 20, 2026	51-200	16 contacts →
	Partial evidence “DYFA Group is a Queensland-based company delivering plumbing, electrical and mining services across the commercial construction, residential, and maintenance sectors.” Source: RevenueBase Database · checked Sep 20, 2026
20	Melbourne Elite Plumbing	Indirect evidence	Berwick, AustraliaHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
21	CAB Plumbing PTY LTD	Partial evidence	Thomastown, AustraliaHQ checked Sep 20, 2026	51-200	15 contacts →
	Partial evidence “CAB Plumbing is a national commercial plumbing and facilities maintenance company delivering reactive, preventative and project services across Australia.” Source: RevenueBase Database · checked Sep 20, 2026
22	Quick Plumbing Group	Partial evidence	Matraville, AustraliaHQ checked Sep 20, 2026	51-200	13 contacts →
	Partial evidence “Quick Plumbing Group commenced trading in 1945 in Victoria and was founded by Frank Quick.” Source: RevenueBase Database · checked Sep 20, 2026
23	A Murray & Sons	Partial evidence	Tumut, AustraliaHQ checked Sep 20, 2026	51-200	13 contacts →
	Partial evidence “A Murray & Sons is a third-generation plumbing company, supplying water, waste and gas solutions to Commercial, domestic and Government clients.” Source: RevenueBase Database · checked Sep 20, 2026
24	Accord Plumbing & GAS Services Perth	Partial evidence	Perth, AustraliaHQ checked Sep 20, 2026	11-50	13 contacts →
	Partial evidence “Established in 1989 Accord Plumbing and Gas are a well recognised Domestic and Commercial Plumbing Company.” Source: RevenueBase Database · checked Sep 20, 2026
25	Highbury Plumbing	Partial evidence	Melbourne, AustraliaHQ checked Sep 20, 2026	51-200	13 contacts →
	Partial evidence “Leaders in commercial and industrial plumbing.” Source: RevenueBase Database · checked Sep 20, 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: plumbing design build firms. 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 plumbing design build firms.
Partial evidence: Its own public description names part of plumbing design build firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name plumbing design build firms. 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 524 plumbing design build firms based in Australia

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Plumbing design build firms based in Australia at a glance

As of Sep 20, 2026

31.9%Verified-email coverage

4.1Average contacts per company

1-10Median size (employees)

9.2%Largest-city concentration · Sydney

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

294

11-50

157

51-200

201-500

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 524 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 plumbing design build firms, 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 “plumbing design build firms”. 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 plumbing design build firms), 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 plumbing design build firms, 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, 691 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 20, 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.

Plumbing design build firms by metro

Plumbing design build firms in Sydney48
Plumbing design build firms in Melbourne35

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 plumbing design build firms, 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 plumbing design build firms are there based in Australia?

RevenueBase identified 524 plumbing design build firms 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?

Planet Plumbing Group, headquartered in Campsie, tops this list with the largest team on record.

Which city has the most plumbing design build firms?

Sydney leads with 48 headquartered companies, followed by Melbourne (35) and Brisbane (17).

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 691 verified decision-maker contacts tracked across these 524 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 20, 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.