Company lists · Data refreshed September 2026

Top 25 Utility patent firms based in Canada

Name: Utility patent firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 119 companies tracked

RevenueBase identified 119 utility patent firms headquartered in Canada as of September 2026 and tracks 1,671 professional contacts across them, including 909 with verified work emails. Toronto is the largest hub.

This list covers utility patent firms headquartered in Canada, 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 22, 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 22, 2026 86% judged on-target in blind review

119Companies

1,671Contacts tracked

909Verified emails

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The 25 largest utility patent firms based in Canada

Ranked by team size

Top 25 of 119 utility patent firms based in Canada, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to utility patent 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	Smart & Biggar	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	501-1,000	521 contacts →
	Indirect evidence “Smart & Biggar is a Canadian intellectual property law firm.” Source: RevenueBase Database · checked Sep 22, 2026
2	ROBIC	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 22, 2026	201-500	191 contacts →
	Indirect evidence “Plus de 130 ans d'excellence ROBIC est un cabinet multidisciplinaire de renommée internationale regroupant des professionnels aux compétences variées incluant des avocats, des…” Source: RevenueBase Database · checked Sep 22, 2026
3	MBM Intellectual Property LAW LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	51-200	131 contacts →
	Indirect evidence “MBM Intellectual Property Law is a dynamic and progressive law firm that practices exclusively in the area of intellectual property (IP) with offices throughout Canada.” Source: RevenueBase Database · checked Sep 22, 2026
4	Oyen Wiggs Green & Mutala LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 22, 2026	11-50	50 contacts →
	Indirect evidence “Established in 1977, Oyen Wiggs is a Vancouver-based independent intellectual property boutique law firm.” Source: RevenueBase Database · checked Sep 22, 2026
5	PCK Intellectual Property	Partial evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	46 contacts →
	Partial evidence “PCK supports a broad range of intellectual property and commercial services around IP Identification, Procurement, Patent Drafting and Prosecution, Trademark Filing and…” Source: RevenueBase Database · checked Sep 22, 2026
6	Gilbert's LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	33 contacts →
	Indirect evidence “Gilbert's LLP is an agile, energetic law firm with an astonishing track record.” Source: RevenueBase Database · checked Sep 22, 2026
7	Deeth Williams Wall LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	33 contacts →
	Indirect evidence “Deeth Williams Wall LLP is an entrepreneurial boutique law firm with locally and internationally recognized lawyers that cover all aspects of IP prosecution, commercialization and…” Source: RevenueBase Database · checked Sep 22, 2026
8	Riches, Mckenzie & Herbert LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	27 contacts →
	Indirect evidence “Founded in 1887 and headquartered in Toronto, Canada, the boutique law firm of Riches, McKenzie & Herbert LLP is one of Canada’s oldest firms, practising solely in the field of…” Source: RevenueBase Database · checked Sep 22, 2026
9	Dipchand LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	26 contacts →
	Indirect evidence “Dipchand LLP is a law firm of dedicated, passionate lawyers with exceptional business insight focused on intellectual property, corporate/commercial and franchise law, as well as…” Source: RevenueBase Database · checked Sep 22, 2026
10	Loberg Ector LLP	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 22, 2026	11-50	25 contacts →
	Indirect evidence “Commercial litigation specialists, with full services for businesses and their owners.” Source: RevenueBase Database · checked Sep 22, 2026
11	Aird Mcburney	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	21 contacts →
	Indirect evidence “As trusted practitioners in intellectual property (IP), the IP Group of Aird & Berlis LLP delivers practical, forward-looking strategies and IP protection that align with our…” Source: RevenueBase Database · checked Sep 22, 2026
12	Goudreau Gage Dubuc Maintenant NOW Lavery Avocats	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 22, 2026	201-500	17 contacts →
	Indirect evidence “A Home For Your Ideas ® Goudreau Gage Dubuc (GGD) is one of Canada's most reputable intellectual property firms.” Source: RevenueBase Database · checked Sep 22, 2026
13	Cpst Intellectual Property	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	16 contacts →
	Indirect evidence “With almost 100 years of combined experience among its founders, CPST focuses on providing the highest standard of client service and advice, always informed by the business…” Source: RevenueBase Database · checked Sep 22, 2026
14	Kirby Eades Gale Baker	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “Founded in 1959 by Peter Kirby our firm is home to a team of highly qualified professionals who focus entirely upon intellectual property.” Source: RevenueBase Database · checked Sep 22, 2026
15	Aventum IP LAW LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	11-50	14 contacts →
	Indirect evidence “Aventum IP Law LLP (formerly Shapiro Cohen LLP) is an intellectual property firm located in the high-tech hub of Ottawa, Ontario.” Source: RevenueBase Database · checked Sep 22, 2026
16	Kawaguchi Krajden LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “At Kawaguchi Krajden LLP, we are experienced civil litigators focused on our clients' needs.” Source: RevenueBase Database · checked Sep 22, 2026
17	PNK Piasetzki Nenniger Kvas LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “PNK Law LLP has been practicing exclusively in the area of intellectual property law for 30 years.” Source: RevenueBase Database · checked Sep 22, 2026
18	Heer LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “We help businesses reach their full potential through effective acquisition, management, use and enforcement of intellectual property rights.” Source: RevenueBase Database · checked Sep 22, 2026
19	Nexus LAW Group LLP	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Nexus Law Group LLP is an intellectual property law firm located in Vancouver and Victoria, Canada.” Source: RevenueBase Database · checked Sep 22, 2026
20	Brunet & CO	Indirect evidence	London, ON, CanadaHQ checked Sep 22, 2026	1-10	11 contacts →
	Indirect evidence “Brunet & Co.(aka BrunetCo) is a Canadian intellectual property firm serving both foreign and Canadian domestic markets.” Source: RevenueBase Database · checked Sep 22, 2026
21	Belmore Neidrauer LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Belmore Neidrauer excels in IP litigation.” Source: RevenueBase Database · checked Sep 22, 2026
22	Aitken Klee LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Aitken Klee specializes in complex intellectual property litigation.” Source: RevenueBase Database · checked Sep 22, 2026
23	Oziel LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 22, 2026	11-50	10 contacts →
	Indirect evidence “Oziel Law is an entrepreneurial law firm which provides corporate and business law, computer and technology law, intellectual property (IP) law and contract drafting legal…” Source: RevenueBase Database · checked Sep 22, 2026
24	Anglehart ET AL	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
25	Ollip P.C	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 22, 2026	1-10	10 contacts →
	Indirect evidence “Protecting IP Assets in Canada & Around the World If you are a brand or technology owner, you don’t have to be told about the value of protecting and enforcing your assets.” Source: RevenueBase Database · checked Sep 22, 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: utility patent 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 utility patent firms.
Partial evidence: Its own public description names part of utility patent firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name utility patent 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 utility patent firms based in Canada

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Utility patent firms based in Canada at a glance

As of Sep 22, 2026

54.4%Verified-email coverage

14.0Average contacts per company

1-10Median size (employees)

34.5%Largest-city concentration · Toronto

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 119 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 utility patent 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 Canada whose own description of what they do matches “utility patent 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 utility patent 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 utility patent firms, and records with no verified work email. Companies headquartered outside Canada 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, 909 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 22, 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.

Utility patent firms by metro

Utility patent firms in Toronto41

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 utility patent 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 utility patent firms are there based in Canada?

RevenueBase identified 119 utility patent firms headquartered in Canada 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?

Smart & Biggar, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most utility patent firms?

Toronto leads with 41 headquartered companies, followed by Montreal (16) and Ottawa (16).

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 909 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 22, 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.