Company lists · Data refreshed September 2026

Top 25 Membrane and waterproofing companies based in Australia

Name: Membrane and waterproofing companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 177 companies tracked

RevenueBase identified 177 membrane and waterproofing companies headquartered in Australia as of September 2026 and tracks 1,000 professional contacts across them, including 333 with verified work emails. Sydney is the largest hub.

This list covers membrane and waterproofing companies 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 28, 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 28, 2026 86% judged on-target in blind review

177Companies

1,000Contacts tracked

333Verified emails

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The 25 largest membrane and waterproofing companies based in Australia

Ranked by team size

Top 25 of 177 membrane and waterproofing companies based in Australia, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to membrane and waterproofing companies: 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	Bayset	Indirect evidence	Coopers Plains, AustraliaHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect evidence “Our senior technical team have over 230 years hands on experience in all areas of the building envelope, from basement to roof top and work with many international technically…” Source: RevenueBase Database · checked Sep 28, 2026
2	Fabtech Australia PTY LTD	Indirect evidence	Dulwich, AustraliaHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “Established in 1986 and incorporated in 1994, Fabtech has extensive experience as a leading Geomembrane installer with an extensive National presence and International reach.” Source: RevenueBase Database · checked Sep 28, 2026
3	Polyseal Group Australia	Partial evidence	St Peters, AustraliaHQ checked Sep 28, 2026	201-500	51 contacts →
	Partial evidence “Since its inception in 1989, Polyseal has remained a prominent contractor in the Australia waterproofing and remedial markets.” Source: RevenueBase Database · checked Sep 28, 2026
4	Megasealed Australia	Indirect evidence	Sydney, AustraliaHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “Established in 1996, Megasealed Australia™ is the pioneer in providing a unique guaranteed solution to stop leaking showers and balconies without the unnecessary cost, time loss…” Source: RevenueBase Database · checked Sep 28, 2026
5	Waterproofing Integrity	Partial evidence	Silverwater, AustraliaHQ checked Sep 28, 2026	51-200	47 contacts →
	Partial evidence “Waterproofing Integrity offers independent third-party design consultation and quality control inspection services for waterproofing systems to ensure the intended performance and…” Source: RevenueBase Database · checked Sep 28, 2026
6	Roof & Building Service AUS PTY LTD	Indirect evidence	Eagle Farm, AustraliaHQ checked Sep 28, 2026	11-50	44 contacts →
	Indirect evidence “Roof & Building Service has been the industry leader, providing water penetration solutions in Australia since 1928.” Source: RevenueBase Database · checked Sep 28, 2026
7	Ametalin	Partial evidence	Salisbury North, AustraliaHQ checked Sep 28, 2026	51-200	42 contacts →
	Partial evidence “Ametalin is a South Australian based company involved in the manufacturing, research and development of pliable building membranes for the building industry in Australia and Asia.” Source: RevenueBase Database · checked Sep 28, 2026
8	Crommelin	Indirect evidence	Perth, AustraliaHQ checked Sep 28, 2026	51-200	23 contacts →
	Indirect evidence “Proven Protection.” Source: RevenueBase Database · checked Sep 28, 2026
9	Siegel	Partial evidence	Sydney Olympic Park, AustraliaHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “Siegel is a leading manufacturer and distributor of high performance chemical products including adhesives, sealants, membranes and functional coating systems throughout…” Source: RevenueBase Database · checked Sep 28, 2026
10	RCR Services	Partial evidence	Newcastle, AustraliaHQ checked Sep 28, 2026	11-50	19 contacts →
	Partial evidence “RCR Services is a trusted partner for commercial roofing, waterproofing, and concrete remediation projects across Australia.” Source: RevenueBase Database · checked Sep 28, 2026
11	Durotech Industries	Strong evidence	Minto, AustraliaHQ checked Sep 28, 2026	11-50	17 contacts →
	Strong evidence “Durotech Industries was founded in 1977, as a manufacturer and supplier of liquid membranes for the waterproofing industry.” Source: RevenueBase Database · checked Sep 28, 2026
12	Abgal Liners & Covers	Indirect evidence	Crestmead, AustraliaHQ checked Sep 28, 2026	11-50	16 contacts →
	Indirect evidence “ABGAL work with a range of fabrics to manufacture custom solutions that cover and contain.” Source: RevenueBase Database · checked Sep 28, 2026
13	Waterproofing Assurance PTY LTD	Strong evidence	Sydney, AustraliaHQ checked Sep 28, 2026	11-50	16 contacts →
	Strong evidence “Waterproofing Assurance provides a unique quality assurance service to our clients for waterproofing membrane systems.” Source: RevenueBase Database · checked Sep 28, 2026
14	Superseal SPC	Partial evidence	Revesby, AustraliaHQ checked Sep 28, 2026	51-200	16 contacts →
	Partial evidence “Its easy to call ourselves market leaders in the waterproofing and epoxy flooring sector.” Source: RevenueBase Database · checked Sep 28, 2026
15	Kryfix	Partial evidence	Taren Point, AustraliaHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “KRYFIX is an industry leading concrete waterproofing specialist company based in Sydney.” Source: RevenueBase Database · checked Sep 28, 2026
16	Pasco Construction Solutions	Partial evidence	Port Melbourne, AustraliaHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “Our intimate market knowledge allowed us to identify a gap in the Commercial and Residential building sector for the supply of a comprehensive range of waterproofing and sealant…” Source: RevenueBase Database · checked Sep 28, 2026
17	Wet-Seal Waterproofing	Partial evidence	Coffs Harbour, AustraliaHQ checked Sep 28, 2026	201-500	10 contacts →
	Partial evidence “Wet-seal is Australia’s largest waterproofing franchise network, delivering an innovative waterproofing solution to the market that saves time and mitigates risk.” Source: RevenueBase Database · checked Sep 28, 2026
18	Stop & Seal	Partial evidence	178 Siganto Drive Helensvale, AustraliaHQ checked Sep 28, 2026	51-200	10 contacts →
	Partial evidence “At Stop & Seal, we specialise in tailored waterproofing solutions for commercial and remedial works across Australia and worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
19	Multipanel	Partial evidence	Carrum Downs, AustraliaHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “MULTIPANEL is an industry leader in the design and manufacturing of innovative waterproofing solutions.” Source: RevenueBase Database · checked Sep 28, 2026
20	Projex Group	Indirect evidence	Eastgardens, AustraliaHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Projex Group provides premium quality products to the Australian market and offer an unrivalled technical support and customer service.” Source: RevenueBase Database · checked Sep 28, 2026
21	Webb Plumbing Services	Indirect evidence	Elsternwick, AustraliaHQ checked Sep 28, 2026	11-50	7 contacts →
	Indirect evidence “Webb Plumbing Services is a construction company based out of 542 Glen Huntly Rd, Elsternwick, Victoria, Australia.” Source: RevenueBase Database · checked Sep 28, 2026
22	SWI Waterproofing	Strong evidence	Wetherill Park, AustraliaHQ checked Sep 28, 2026	11-50	6 contacts →
	Strong evidence “Australia’s leading roofing & waterproofing contractor specialising in single ply sheet membranes with over 20 years experience.” Source: RevenueBase Database · checked Sep 28, 2026
23	Honcho Supplies	Indirect evidence	Milperra, AustraliaHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Honcho Supplies offers a range of durable, fire retardant, anti-microbial, water resistant and non-slip surface protection products to protect your commercial, civil or…” Source: RevenueBase Database · checked Sep 28, 2026
24	Altec Building	Partial evidence	Sydney, AustraliaHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “Remedial Building & Waterproofing Experts” Source: RevenueBase Database · checked Sep 28, 2026
25	WPD Group	Partial evidence	Warriewood, AustraliaHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “WPD Group (previously Waterproofing Direct) is an Australian owned and family run business.” Source: RevenueBase Database · checked Sep 28, 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: membrane and waterproofing companies. 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 membrane and waterproofing companies.
Partial evidence: Its own public description names part of membrane and waterproofing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name membrane and waterproofing companies. 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 177 membrane and waterproofing companies based in Australia

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Membrane and waterproofing companies based in Australia at a glance

As of Sep 28, 2026

33.3%Verified-email coverage

5.6Average contacts per company

1-10Median size (employees)

14.7%Largest-city concentration · Sydney

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

104

11-50

51-200

201-500

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 177 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 membrane and waterproofing companies, 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 “membrane and waterproofing companies”. 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 membrane and waterproofing companies), 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 membrane and waterproofing companies, 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, 333 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 28, 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.

Membrane and waterproofing companies by metro

Membrane and waterproofing companies in Sydney26

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 membrane and waterproofing companies, 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 membrane and waterproofing companies are there based in Australia?

RevenueBase identified 177 membrane and waterproofing companies 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?

Bayset, headquartered in Coopers Plains, tops this list with the largest team on record.

Which city has the most membrane and waterproofing companies?

Sydney leads with 26 headquartered companies, followed by Melbourne (11) and Gold Coast (5).

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 333 verified decision-maker contacts tracked across these 177 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 28, 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.