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, how directly it supports the match, 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 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 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. Evidence rates how directly each company's own description names international patent law firms: 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	Spruson & FergusonIndirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	201-500	365
	“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: company website · checked Sep 4, 2026
2	Davies Collison CavePartial evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	201-500	217
	“Davies Collison Cave provides an extensive range of strategically focused intellectual property services including expert advice in patents, trade marks, domain names, trade…” Source: company website · checked Sep 4, 2026
3	FB RiceIndirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	201-500	188
	“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: company website · checked Sep 4, 2026
4	Griffith HackIndirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	201-500	176
	“Intellectual property has always been about protecting and safeguarding a client’s most precious and valuable assets – their ideas.” Source: company website · checked Sep 4, 2026
5	IPH LimitedPartial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	1,001-5,000	134
	“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: company website · checked Sep 4, 2026
6	Phillips Ormonde FitzpatrickIndirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	51-200	104
	“Phillips Ormonde Fitzpatrick is a leading full service intellectual property firm in Australia.” Source: company website · checked Sep 4, 2026
7	BennettPartial evidence	Perth, AustraliaHQ checked Sep 4, 2026	51-200	90
	“A law firm with dedication, expertise and commitment.” Source: company website · checked Sep 4, 2026
8	FPA Patent AttorneysIndirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	51-200	74
	“Every idea has the potential to change the future.” Source: company website · checked Sep 4, 2026
9	Wrays Intellectual PropertyIndirect evidence	AustraliaHQ checked Sep 4, 2026	51-200	73
	“Wrays - working with clients locally and globally to protect, grow and defend their IP assets.” Source: company website · checked Sep 4, 2026
10	Madderns Patent & Trade Mark AttorneysPartial evidence	Adelaide, AustraliaHQ checked Sep 4, 2026	51-200	46
	“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: company website · checked Sep 4, 2026
11	MBIPIndirect evidence	Red Hill, AustraliaHQ checked Sep 4, 2026	11-50	33
	“MBIP is an independent, boutique intellectual property firm, based in Brisbane & Melbourne, Australia.” Source: company website · checked Sep 4, 2026
12	Banki Haddock FioraPartial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	31
	“Banki Haddock Fiora is an Australian commercial law firm specialising in intellectual property, technology and media law.” Source: company website · checked Sep 4, 2026
13	Williams HughesPartial evidence	West Perth, AustraliaHQ checked Sep 4, 2026	11-50	31
	“Williams + Hughes is a Western Australian law firm specialising in commercial law and commercial litigation, intellectual property and dispute resolution.” Source: company website · checked Sep 4, 2026
14	Pizzeys Patent And Trade Mark AttorneysPartial evidence	Brisbane, AustraliaHQ checked Sep 4, 2026	11-50	20
	“Since 1981, Pizzeys have been providing practical, personalised and responsive service to protect and enforce patents, trade marks and designs.” Source: company website · checked Sep 4, 2026
15	Shelston IPIndirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	51-200	18
	“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: company website · checked Sep 4, 2026
16	Halfords IPPartial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	16
	“Halfords IP is a proudly independent, boutique patent and trade mark attorney firm.” Source: company website · checked Sep 4, 2026
17	IP SolvedIndirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	16
	“We’re not just IP experts – we’re your strategic growth partners.” Source: company website · checked Sep 4, 2026
18	Cullens Patent And Trade Mark AttorneysPartial evidence	Brisbane, AustraliaHQ checked Sep 4, 2026	11-50	15
	“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: company website · checked Sep 4, 2026
19	Baxter Ip, Patent & Trade Mark AttorneysStrong evidence	Sydney, AustraliaHQ checked Sep 4, 2026	11-50	14
	“Baxter IP is a full-service Australian & NZ patent and trademark attorney firm offering searches, filings and enforcement of intellectual property rights internationally.” Source: company website · checked Sep 4, 2026
20	Integrated IP Intellectual Property & Advisory Iip.com.AuIndirect evidence	Nedlands, AustraliaHQ checked Sep 4, 2026	11-50	12
	“IIP is a multidisciplinary team of intellectual property specialists.” Source: company website · checked Sep 4, 2026
21	Actuate IPIndirect evidence	Melbourne, AustraliaHQ checked Sep 4, 2026	11-50	12
	“We are intellectual property specialists.” Source: company website · checked Sep 4, 2026
22	Wallington-Dummer Patent And Trade Mark AttorneysIndirect evidence	Sydney, AustraliaHQ checked Sep 4, 2026	1-10	12
	“Wallington-Dummer specialises in the needs of innovators in the early stages of developing intellectual property rights.” Source: company website · checked Sep 4, 2026
23	Quest LegalPartial evidence	Sydney, AustraliaHQ checked Sep 4, 2026	1-10	11
	“Quest Legal is a commercial and intellectual property practice that specialises in making the law more accessible and understandable for individuals and businesses.” Source: company website · checked Sep 4, 2026
24	By George LegalIndirect evidence	Brunswick, AustraliaHQ checked Sep 4, 2026	11-50	11
	“By George offers practical and strategic intellectual property solutions, excellent client service and robust representation.” Source: company website · checked Sep 4, 2026
25	IP Partnership LawyersStrong evidence	Southport, AustraliaHQ checked Sep 4, 2026	1-10	11
	“IP Partnership is a commercial only law firm with particular expertise assisting businesses grow and leverage their brand nationally and internationally.” Source: company website · checked Sep 4, 2026

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

1-10Median size (employees)

SydneyLargest hub · 28 HQs

97Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Verified emails by last verification

0–30

31–60

116

61–90

696

90–180

474

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 international patent law firms, 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 “international patent law firms”. 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 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 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, 1,290 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

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 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.