Company lists · Data refreshed September 2026

Top 25 Energy sector law firms based in Toronto, Canada

Name: Energy sector 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 21, 2026 51 companies tracked

RevenueBase identified 51 energy sector law firms headquartered in Toronto, Canada as of September 2026 and tracks 4,350 professional contacts across them, including 2,968 with verified work emails. Toronto is the largest hub.

This list covers energy sector 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 21, 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 21, 2026 86% judged on-target in blind review

51Companies

4,350Contacts tracked

2,968Verified emails

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The 25 largest energy sector law firms based in Toronto, Canada

Ranked by team size

Top 25 of 51 energy sector law firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy sector 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 21, 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 21, 2026
2	Mcmillan LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	501-1,000	885 contacts →
	Partial evidence “At McMillan LLP, we are a national business law firm that knows real-time solutions drive your success.” Source: RevenueBase Database · checked Sep 21, 2026
3	Aird & Berlis LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	501-1,000	586 contacts →
	Indirect evidence “Whether you are conducting business in Canada or abroad, Aird & Berlis LLP understands the realities of your work.” Source: RevenueBase Database · checked Sep 21, 2026
4	Goodmans LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	201-500	500 contacts →
	Partial evidence “Goodmans LLP is recognized internationally as one of Canada's premier transaction law firms because our lawyers and clients are industry leaders.” Source: RevenueBase Database · checked Sep 21, 2026
5	Blaney Mcmurtry LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 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 21, 2026
6	Dale & Lessmann LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	73 contacts →
	Partial evidence “Tracing its origins back over one hundred years, Dale & Lessmann LLP is a full service business law firm based in Toronto, Ontario, Canada.” Source: RevenueBase Database · checked Sep 21, 2026
7	Thornton Grout Finnigan LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	58 contacts →
	Indirect 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 21, 2026
8	Willms & Shier Environmental Lawyers LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	34 contacts →
	Strong evidence “Willms & Shier Environmental Lawyers LLP is Canada’s recognized leading environmental law firm, delivering a full range of environmental, Indigenous and energy law services.” Source: RevenueBase Database · checked Sep 21, 2026
9	Brauti Thorning LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	33 contacts →
	Partial evidence “Brauti Thorning LLP is a dynamic, full-service litigation and corporate law boutique.” Source: RevenueBase Database · checked Sep 21, 2026
10	Gilbert's LLP	Strong evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	33 contacts →
	Strong evidence “Gilbert's LLP is an agile, energetic law firm with an astonishing track record.” Source: RevenueBase Database · checked Sep 21, 2026
11	Steinbergs LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	25 contacts →
	Partial evidence “We offer a broad range of legal services at our Toronto based law firm.” Source: RevenueBase Database · checked Sep 21, 2026
12	Davies Howe LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “Davies Howe LLP is your land development and litigation team, dedicated to tenacious advocacy, strategic solutions and service excellence.” Source: RevenueBase Database · checked Sep 21, 2026
13	Kagan Shastri Demelo Winer Park LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “Kagan Shastri DeMelo Winer Park LLP is a leading boutique law firm, specializing in planning and development law, litigation, and corporate law.” Source: RevenueBase Database · checked Sep 21, 2026
14	SUN & Partners Professional Corporation	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	15 contacts →
	Partial evidence “SUN & PARTNERS is a forward-thinking Toronto law firm focused on delivering legal solutions that meet the special needs of medium-sized companies, international businesses and…” Source: RevenueBase Database · checked Sep 21, 2026
15	R&d LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	10 contacts →
	Partial evidence “R&D LLP is a boutique corporate and commercial law firm based in downtown Toronto.” Source: RevenueBase Database · checked Sep 21, 2026
16	Cappellacci Daroza LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	10 contacts →
	Partial evidence “Cappellacci DaRoza LLP is a corporate/commercial law firm specializing in healthcare located in Toronto.” Source: RevenueBase Database · checked Sep 21, 2026
17	Construct Legal Canada	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “We are a specialty law firm.” Source: RevenueBase Database · checked Sep 21, 2026
18	Allen Mcdonald Swartz LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “Allen McDonald Swartz LLP is a Toronto-based boutique law firm that focuses on corporate law, capital markets transactions and securities law.” Source: RevenueBase Database · checked Sep 21, 2026
19	Compass Energy Consulting	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	7 contacts →
	Partial evidence “Compass Energy Consulting (“Compass”) is a boutique management consulting firm that is focused on providing strategic, technical, financial, and development support to the…” Source: RevenueBase Database · checked Sep 21, 2026
20	Andriessen & Associates, Business Lawyers	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	6 contacts →
	Partial evidence “We are a law firm focusing on Business Law.” Source: RevenueBase Database · checked Sep 21, 2026
21	KWM Consulting	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	11-50	6 contacts →
	Indirect evidence “At KWM we believe that successful advice goes beyond the achievement of outputs and goals, to empowering our clients to respond in a manner that meets the needs of today and…” Source: RevenueBase Database · checked Sep 21, 2026
22	Overland LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	5 contacts →
	Partial evidence “Overland LLP is a law firm specializing in land use planning, development, and municipal law in Toronto, the Greater Toronto Area, and Southern Ontario.” Source: RevenueBase Database · checked Sep 21, 2026
23	BE Defended Professional Corporation	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Criminal advocacy, civil litigation, and regulatory defence” Source: RevenueBase Database · checked Sep 21, 2026
24	Laishley Reed LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	5 contacts →
	Indirect evidence “Laishley Reed LLP in Toronto is a commercial litigation practice.” Source: RevenueBase Database · checked Sep 21, 2026
25	Barnable LAW P.C	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “We are a litigation and advisory law firm located in downtown Toronto.” Source: RevenueBase Database · checked Sep 21, 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: energy sector 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 energy sector law firms.
Partial evidence: Its own public description names part of energy sector law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy sector 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 51 energy sector law firms based in Toronto, Canada

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Energy sector law firms based in Toronto, Canada at a glance

As of Sep 21, 2026

68.2%Verified-email coverage

85.3Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Toronto

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 51 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 energy sector 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 “energy sector 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 energy sector 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 energy sector 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, 2,968 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 21, 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.

Energy sector 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 energy sector 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 energy sector law firms are there based in Toronto, Canada?

RevenueBase identified 51 energy sector 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 has the most energy sector law firms?

Toronto leads with 51 headquartered companies, followed by Calgary (45) and Vancouver (25).

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 2,968 verified decision-maker contacts tracked across these 51 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 21, 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.