Company lists · Data refreshed September 2026

Top 25 Insurance litigation law firms based in Toronto, Canada

Name: Insurance litigation law firms based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 244 companies tracked

RevenueBase identified 244 insurance litigation law firms headquartered in Toronto, Canada as of September 2026 and tracks 6,065 professional contacts across them, including 4,095 with verified work emails. Across Canada, Toronto is the largest hub for this category.

This list covers insurance litigation law 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 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

244Companies

6,065Contacts tracked

4,095Verified emails

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The 25 largest insurance litigation law firms based in Toronto, Canada

Ranked by team size

Top 25 of 244 insurance litigation law firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to insurance litigation 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	Blake, Cassels & Graydon LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	1,001-5,000	1,555 contacts →
	Indirect evidence “At Blake, Cassels & Graydon LLP (Blakes), we serve a diverse national and international client base.” Source: RevenueBase Database · checked Sep 28, 2026
2	Blaney Mcmurtry LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	201-500	301 contacts →
	Partial evidence “Based in the heart of Toronto’s financial district, Blaney McMurtry LLP is one of Canada's premier law firms.” Source: RevenueBase Database · checked Sep 28, 2026
3	Weirfoulds LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	201-500	284 contacts →
	Indirect evidence “For over 165 years, the lawyers of WeirFoulds have been proud to serve our clients in their most difficult and complex matters.” Source: RevenueBase Database · checked Sep 28, 2026
4	Diamond And Diamond Lawyers	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	n/a	254 contacts →
	Indirect evidence “When you're injured in an accident and want to seek the compensation you deserve, you need a dedicated professional who works exclusively in the field and understands it through…” Source: RevenueBase Database · checked Sep 28, 2026
5	Lenczner Slaght	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	217 contacts →
	Partial evidence “Widely recognized as Canada’s leading litigation practice, we have successfully represented clients’ interests in some of the most complex, high-profile cases in Canadian legal…” Source: RevenueBase Database · checked Sep 28, 2026
6	Beard Winter LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	148 contacts →
	Strong evidence “Beard Winter LLP is one of Canada's Best Law Firms for 2023 as recognized by the Globe and Mail, with a special distinction in the practice area of Insurance Law.” Source: RevenueBase Database · checked Sep 28, 2026
7	Devry Smith Frank LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	135 contacts →
	Indirect evidence “Since 1964, Devry Smith Frank LLP (DSF) has provided trusted legal service to individuals, businesses, and institutions throughout Ontario.” Source: RevenueBase Database · checked Sep 28, 2026
8	Samfiru Tumarkin LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	110 contacts →
	Partial evidence “Samfiru Tumarkin LLP: Proven Employment, Disability, and Personal Injury Lawyers Samfiru Tumarkin LLP is a trusted law firm with offices in Toronto, Vancouver, Ottawa, and Calgary.” Source: RevenueBase Database · checked Sep 28, 2026
9	Mccague Borlack LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	99 contacts →
	Strong evidence “Litigation Law Firm - We are one of Toronto's leading litigation law firms with regional offices in Barrie, Ottawa, Kitchener and London.” Source: RevenueBase Database · checked Sep 28, 2026
10	Dutton Brock LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	87 contacts →
	Strong evidence “We are one of Toronto's premier insurance litigation firms with over 30 years experience.” Source: RevenueBase Database · checked Sep 28, 2026
11	Thomson Rogers LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	87 contacts →
	Partial evidence “Since opening our doors in Toronto in 1935, Thomson Rogers has a reputation for taking on the most complex challenging litigation matters and delivering results.” Source: RevenueBase Database · checked Sep 28, 2026
12	Shibley Righton LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	83 contacts →
	Partial evidence “Established in 1964, Shibley Righton LLP is a full-service law firm with offices in Toronto and Windsor, Ontario.” Source: RevenueBase Database · checked Sep 28, 2026
13	Bell Temple LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	82 contacts →
	Strong evidence “We are one of Canada's top 10 Insurance Defence boutiques serving a clientèle of national and multi-national firms in civil litigation suits in Ontario, Canada.” Source: RevenueBase Database · checked Sep 28, 2026
14	Naimark LAW Firm	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	11-50	72 contacts →
	Partial evidence “Naimark Law Firm is comprised of a highly dedicated and recognized team of Personal Injury Professionals.” Source: RevenueBase Database · checked Sep 28, 2026
15	Paliare Roland Rosenberg Rothstein LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	71 contacts →
	Indirect evidence “We are 50 barristers, dedicated to exceptional advocacy.” Source: RevenueBase Database · checked Sep 28, 2026
16	Zuber & Company LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	67 contacts →
	Strong evidence “Zuber & Company LLP specializes exclusively in civil litigation, primarily in the areas of property and casualty insurance law in addition to personal injury litigation.” Source: RevenueBase Database · checked Sep 28, 2026
17	Zarek Taylor Grossman Hanrahan LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	66 contacts →
	Strong evidence “Zarek Taylor Grossman Hanrahan LLP is Toronto's pre-eminent insurance defence law firm that was established in 1997.” Source: RevenueBase Database · checked Sep 28, 2026
18	LAX O'sullivan Lisus Gottlieb LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	11-50	63 contacts →
	Partial evidence “Lax O’Sullivan Lisus Gottlieb LLP is Canada’s preeminent business litigation firm.” Source: RevenueBase Database · checked Sep 28, 2026
19	Neinstein LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	60 contacts →
	Partial evidence “Neinstein is a results-driven civil litigation firm in Canada.” Source: RevenueBase Database · checked Sep 28, 2026
20	Thornton Grout Finnigan LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	11-50	58 contacts →
	Partial evidence “Thornton Grout Finnigan LLP (TGF) was founded in 1998 with a very specific vision in mind: deliver a higher level of Restructuring and Litigation expertise - and service - to the…” Source: RevenueBase Database · checked Sep 28, 2026
21	Goldman Sloan Nash & Haber LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	55 contacts →
	Indirect evidence “OUR FIRM: For more than 40 years, Goldman Sloan Nash & Haber (GSNH) LLP has helped leading businesses, entrepreneurs and individuals successfully navigate the maze of corporate &…” Source: RevenueBase Database · checked Sep 28, 2026
22	Stieber Berlach LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	52 contacts →
	Strong evidence “Routinely included in Canadian Lawyer’s annual list of Top 10 Insurance Defence Law Boutiques in Canada, and recently named one of the best law firms in Canada by The Globe &…” Source: RevenueBase Database · checked Sep 28, 2026
23	Kostyniuk & Greenside Lawyers	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	52 contacts →
	Strong evidence “We are an insurance law boutique, acting for both Plaintiffs and Defendants in a variety of insurance-related disputes, but also offer our highly effective services for many other…” Source: RevenueBase Database · checked Sep 28, 2026
24	Grillo LAW Personal Injury Lawyers	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “Grillo Law is a prominent Toronto plaintiff personal injury law firm with over 35 years of experience.” Source: RevenueBase Database · checked Sep 28, 2026
25	Rogers Partners LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	51-200	46 contacts →
	Strong evidence “Rogers Partners LLP is a boutique litigation practice that combines the personal touch of a smaller law firm with the deep expertise and experience of much larger firms.” 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: insurance litigation 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 insurance litigation law firms.
Partial evidence: Its own public description names part of insurance litigation law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name insurance litigation 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 244 insurance litigation law firms based in Toronto, Canada

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Insurance litigation law firms based in Toronto, Canada at a glance

As of Sep 28, 2026

67.5%Verified-email coverage

24.9Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

126

11-50

51-200

201-500

1,001-5,000

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 244 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 insurance litigation 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 Toronto, Canada whose own description of what they do matches “insurance litigation 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 insurance litigation 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 insurance litigation law 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, 4,095 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.

Insurance litigation law firms by metro in Canada

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 insurance litigation 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 insurance litigation law firms are there based in Toronto, Canada?

RevenueBase identified 244 insurance litigation law 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?

Blake, Cassels & Graydon LLP, headquartered in Toronto, tops this list with the largest team on record.

Which city in Canada has the most insurance litigation law firms?

Toronto leads Canada with 244 headquartered companies, followed by Vancouver (75) and Calgary (45).

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 4,095 verified decision-maker contacts tracked across these 244 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.