Company lists · Data refreshed September 2026

Top 25 Software patent prosecution firms based in Toronto, Canada

Name: Software patent prosecution firms based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 44 companies tracked

RevenueBase identified 44 software patent prosecution firms headquartered in Toronto, Canada as of September 2026 and tracks 422 professional contacts across them, including 212 with verified work emails. Across Canada, Toronto is the largest hub for this category.

This list covers software patent prosecution firms headquartered in Toronto, 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 29, 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 29, 2026 86% judged on-target in blind review

44Companies

422Contacts tracked

212Verified emails

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The 25 largest software patent prosecution firms based in Toronto, Canada

Ranked by team size

Top 25 of 44 software patent prosecution firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to software patent prosecution 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	Bereskin & Parr LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	201-500	73 contacts →
	Indirect evidence “Bereskin & Parr has joined Smart & Biggar, Canada’s leading team for intellectual property, and now operates as Smart & Biggar.” Source: RevenueBase Database · checked Sep 29, 2026
2	PCK Intellectual Property	Strong evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	46 contacts →
	Strong 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 29, 2026
3	Deeth Williams Wall LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	33 contacts →
	Partial 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 29, 2026
4	Riches, Mckenzie & Herbert LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 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 29, 2026
5	Dipchand LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 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 29, 2026
6	Aird Mcburney	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 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 29, 2026
7	Cpst Intellectual Property	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 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 29, 2026
8	PNK Piasetzki Nenniger Kvas LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 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 29, 2026
9	Heer LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 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 29, 2026
10	Belmore Neidrauer LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “Belmore Neidrauer excels in IP litigation.” Source: RevenueBase Database · checked Sep 29, 2026
11	Oziel LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 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 29, 2026
12	Rowand LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “Rowand LLP was established to provide practical and valuable intellectual property services for entrepreneurs and established companies working at the leading edge of technology.” Source: RevenueBase Database · checked Sep 29, 2026
13	Sprigings Intellectual Property LAW	Strong evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	8 contacts →
	Strong evidence “Sprigings focuses on patent and trademark litigation, with an emphasis on pharmaceuticals and trademark prosecution.” Source: RevenueBase Database · checked Sep 29, 2026
14	Bhole IP LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	8 contacts →
	Indirect evidence “Bhole IP Law is a different breed of law firm; one that was founded on the principle that intellectual property strategy must reflect business reality.” Source: RevenueBase Database · checked Sep 29, 2026
15	Shift LAW P.C.	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	8 contacts →
	Indirect evidence “SHIFT LAW is an award winning intellectual property and IP litigation boutique.” Source: RevenueBase Database · checked Sep 29, 2026
16	Markwell Clarizio LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	7 contacts →
	Indirect evidence “We are an intellectual property and drug regulatory litigation firm in Toronto, Canada.” Source: RevenueBase Database · checked Sep 29, 2026
17	Wilson LUE LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “We are experienced and trusted intellectual property lawyers, patent agents, and trademark agents.” Source: RevenueBase Database · checked Sep 29, 2026
18	Open IP Corporation	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	4 contacts →
	Indirect evidence “A technology company specializing in intellectual property.” Source: RevenueBase Database · checked Sep 29, 2026
19	Leunglaw Business IP LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence “LeungLaw is a business and intellectual property (IP) law firm that is simplifying the delivery of legal services for entrepreneurs and innovators.” Source: RevenueBase Database · checked Sep 29, 2026
20	Innovate LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “Lawyers, Patent and Trade-mark Agents Innovate LLP is an intellectual property and business law firm.” Source: RevenueBase Database · checked Sep 29, 2026
21	Sander LAW	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	2 contacts →
	Partial evidence “Sander Law provides intellectual property (IP) services including trademarks, patents, industrial designs, and copyright.” Source: RevenueBase Database · checked Sep 29, 2026
22	Ledgley LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
23	Pawlina LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “Pawlina Law is a business law firm focusing on providing Corporate and Intellectual Property solutions to small and medium-sized enterprises.” Source: RevenueBase Database · checked Sep 29, 2026
24	GT LAW Professional Corporation	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “GT Law Professional Corporation is a strong advocate and trusted advisor for its corporate, business and individual clients.” Source: RevenueBase Database · checked Sep 29, 2026
25	The Muscovitch LAW Firm	Indirect evidence	Toronto, CanadaHQ checked Sep 29, 2026	1-10	1 contacts →
	Indirect evidence “We have developed a strong reputation in Intellectual Property and Internet Law.” Source: RevenueBase Database · checked Sep 29, 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: software patent prosecution 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 software patent prosecution firms.
Partial evidence: Its own public description names part of software patent prosecution firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name software patent prosecution 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 44 software patent prosecution firms based in Toronto, Canada

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Software patent prosecution firms based in Toronto, Canada at a glance

As of Sep 29, 2026

50.2%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 44 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 software patent prosecution 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 Toronto, Canada whose own description of what they do matches “software patent prosecution 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 software patent prosecution 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 software patent prosecution firms, and records with no verified work email. Companies headquartered outside Toronto 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, 212 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 29, 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.

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 software patent prosecution 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 software patent prosecution firms are there based in Toronto, Canada?

RevenueBase identified 44 software patent prosecution firms headquartered in Toronto, 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?

Bereskin & Parr LLP, headquartered in Toronto, tops this list with the largest team on record.

Which city in Canada has the most software patent prosecution firms?

Toronto leads Canada with 44 headquartered companies, followed by Montreal (17) and Ottawa (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 212 verified decision-maker contacts tracked across these 44 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 29, 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.