Company lists · Data refreshed September 2026

Top 25 International patent law firms based in Australia

Name: International patent law firms based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 119 companies tracked

RevenueBase identified 119 international patent law firms headquartered in Australia as of September 2026 and tracks 2,100 professional contacts across them, including 1,290 with verified work emails and 97 with mobile numbers. Sydney is the largest hub.

This list covers international patent law 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 4, 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 4, 2026 86% judged on-target in blind review

119Companies

2,100Contacts tracked

1,290Verified emails

97Mobile numbers

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The 25 largest international patent law firms based in Australia

Ranked by team size

Top 25 of 119 international patent law firms based in Australia, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to international patent law 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	Spruson & Ferguson	Indirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	201-500	365 contacts →
	Indirect evidence “Spruson & Ferguson is a leading provider of intellectual property (IP) services across the Asia-Pacific region, with more than 490 staff working from our offices in Bangkok…” Source: RevenueBase Database · checked Sep 4, 2026
2	Davies Collison Cave	Partial evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	201-500	217 contacts →
	Partial evidence “Davies Collison Cave provides an extensive range of strategically focused intellectual property services including expert advice in patents, trade marks, domain names, trade…” Source: RevenueBase Database · checked Sep 4, 2026
3	FB Rice	Indirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	201-500	188 contacts →
	Indirect evidence “Since being founded more than 75 years ago, we have become Australia’s most trusted intellectual property firm with offices across the country and a well-established presence in…” Source: RevenueBase Database · checked Sep 4, 2026
4	Griffith Hack	Indirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	201-500	176 contacts →
	Indirect evidence “Intellectual property has always been about protecting and safeguarding a client’s most precious and valuable assets – their ideas.” Source: RevenueBase Database · checked Sep 4, 2026
5	IPH Limited	Partial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	1,001-5,000	134 contacts →
	Partial evidence “IPH is an international intellectual property services group, a network of six member firms and one IP services firm working throughout 26 global IP jurisdictions with clients in…” Source: RevenueBase Database · checked Sep 4, 2026
6	Phillips Ormonde Fitzpatrick	Indirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	51-200	104 contacts →
	Indirect evidence “Phillips Ormonde Fitzpatrick is a leading full service intellectual property firm in Australia.” Source: RevenueBase Database · checked Sep 4, 2026
7	Bennett	Partial evidence	Perth, AustraliaHQ checked Sep 4, 2026	51-200	90 contacts →
	Partial evidence “A law firm with dedication, expertise and commitment.” Source: RevenueBase Database · checked Sep 4, 2026
8	FPA Patent Attorneys	Indirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	51-200	74 contacts →
	Indirect evidence “Every idea has the potential to change the future.” Source: RevenueBase Database · checked Sep 4, 2026
9	Wrays Intellectual Property	Indirect evidence	AustraliaHQ checked Sep 4, 2026	51-200	73 contacts →
	Indirect evidence “Wrays - working with clients locally and globally to protect, grow and defend their IP assets.” Source: RevenueBase Database · checked Sep 4, 2026
10	Madderns Patent & Trade Mark Attorneys	Partial evidence	Adelaide, AustraliaHQ checked Sep 4, 2026	51-200	46 contacts →
	Partial evidence “Madderns is a leading Patent and Trade Mark Attorney firm that helps Australian and New Zealand businesses take their great ideas to the world.” Source: RevenueBase Database · checked Sep 4, 2026
11	MBIP	Indirect evidence	Red Hill, AustraliaHQ checked Sep 4, 2026	11-50	33 contacts →
	Indirect evidence “MBIP is an independent, boutique intellectual property firm, based in Brisbane & Melbourne, Australia.” Source: RevenueBase Database · checked Sep 4, 2026
12	Banki Haddock Fiora	Partial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	31 contacts →
	Partial evidence “Banki Haddock Fiora is an Australian commercial law firm specialising in intellectual property, technology and media law.” Source: RevenueBase Database · checked Sep 4, 2026
13	Williams Hughes	Partial evidence	West Perth, AustraliaHQ checked Sep 4, 2026	11-50	31 contacts →
	Partial evidence “Williams + Hughes is a Western Australian law firm specialising in commercial law and commercial litigation, intellectual property and dispute resolution.” Source: RevenueBase Database · checked Sep 4, 2026
14	Pizzeys Patent And Trade Mark Attorneys	Partial evidence	Brisbane, AustraliaHQ checked Sep 4, 2026	11-50	20 contacts →
	Partial evidence “Since 1981, Pizzeys have been providing practical, personalised and responsive service to protect and enforce patents, trade marks and designs.” Source: RevenueBase Database · checked Sep 4, 2026
15	Shelston IP	Indirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	51-200	18 contacts →
	Indirect evidence “On 1 November 2021, Shelston IP and Spruson & Ferguson (Australia) joined to create Australia’s largest IP firm, operating under the Spruson & Ferguson brand.” Source: RevenueBase Database · checked Sep 4, 2026
16	Halfords IP	Partial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	16 contacts →
	Partial evidence “Halfords IP is a proudly independent, boutique patent and trade mark attorney firm.” Source: RevenueBase Database · checked Sep 4, 2026
17	IP Solved	Indirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	16 contacts →
	Indirect evidence “We’re not just IP experts – we’re your strategic growth partners.” Source: RevenueBase Database · checked Sep 4, 2026
18	Cullens Patent And Trade Mark Attorneys	Partial evidence	Brisbane, AustraliaHQ checked Sep 4, 2026	11-50	15 contacts →
	Partial evidence “Whether you need patent protection or a design or trade mark registration, the Cullens team will secure the most advantageous legal protection for your intellectual property.” Source: RevenueBase Database · checked Sep 4, 2026
19	Baxter Ip, Patent & Trade Mark Attorneys	Strong evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	14 contacts →
	Strong evidence “Baxter IP is a full-service Australian & NZ patent and trademark attorney firm offering searches, filings and enforcement of intellectual property rights internationally.” Source: RevenueBase Database · checked Sep 4, 2026
20	Integrated IP Intellectual Property & Advisory Iip.com.Au	Indirect evidence	Nedlands, AustraliaHQ checked Sep 4, 2026	11-50	12 contacts →
	Indirect evidence “IIP is a multidisciplinary team of intellectual property specialists.” Source: RevenueBase Database · checked Sep 4, 2026
21	Actuate IP	Indirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	11-50	12 contacts →
	Indirect evidence “We are intellectual property specialists.” Source: RevenueBase Database · checked Sep 4, 2026
22	Wallington-Dummer Patent And Trade Mark Attorneys	Indirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	1-10	12 contacts →
	Indirect evidence “Wallington-Dummer specialises in the needs of innovators in the early stages of developing intellectual property rights.” Source: RevenueBase Database · checked Sep 4, 2026
23	Quest Legal	Partial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	1-10	11 contacts →
	Partial evidence “Quest Legal is a commercial and intellectual property practice that specialises in making the law more accessible and understandable for individuals and businesses.” Source: RevenueBase Database · checked Sep 4, 2026
24	By George Legal	Indirect evidence	Brunswick, AustraliaHQ checked Sep 4, 2026	11-50	11 contacts →
	Indirect evidence “By George offers practical and strategic intellectual property solutions, excellent client service and robust representation.” Source: RevenueBase Database · checked Sep 4, 2026
25	IP Partnership Lawyers	Strong evidence	Southport, AustraliaHQ checked Sep 4, 2026	1-10	11 contacts →
	Strong evidence “IP Partnership is a commercial only law firm with particular expertise assisting businesses grow and leverage their brand nationally and internationally.” Source: RevenueBase Database · checked Sep 4, 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: international patent law 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 international patent law firms.
Partial evidence: Its own public description names part of international patent law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international patent law 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 119 international patent law firms based in Australia

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International patent law firms based in Australia at a glance

As of Sep 4, 2026

61.4%Verified-email coverage

4.6%Mobile-number coverage

17.6Average contacts per company

1-10Median size (employees)

23.5%Largest-city concentration · Sydney

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

11631–60

69661–90

47490–180

4180+

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 international patent law 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 “international patent law 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 international patent law 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 international patent law 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, 1,290 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 4, 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.

International patent law firms by metro

International patent law firms in Sydney28

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 international patent law 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 international patent law firms are there based in Australia?

RevenueBase identified 119 international patent law 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?

Spruson & Ferguson, headquartered in Melbourne, tops this list with the largest team on record.

Which city has the most international patent law firms?

Sydney leads with 28 headquartered companies, followed by Melbourne (21) and Brisbane (8).

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 1,290 verified decision-maker contacts tracked across these 119 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 4, 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.