Company lists · Data refreshed August 2026

Top 25 Construction law firms based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 218 companies tracked

RevenueBase identified 218 construction law firms headquartered in Canada as of August 2026 and tracks 2,601 professional contacts across them, including 1,549 with verified work emails and 138 with mobile numbers. Toronto is the largest hub.

This list covers construction law 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 August 31, 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 RevenueBase Smart Search rating on every row Refreshed Aug 31, 2026 86% judged on-target in blind review

218Companies

2,601Contacts tracked

1,549Verified emails

138Mobile numbers

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The 25 largest construction law firms based in Canada

Ranked by team size

Top 25 of 218 construction law firms based in Canada, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to construction 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	Langlois Avocats	Partial evidence	Montreal, QC, Canada	201-500	347 contacts →
	Partial evidence “As a leading independent law firm in Québec, Langlois brings together more than 325 people, including some 185 legal professionals, in our Montréal and Québec City offices.” Source: RevenueBase Database · checked Aug 31, 2026
2	DE Grandpré Chait	Indirect evidence	Montreal, QC, Canada	51-200	169 contacts →
	Indirect evidence “Strongly established within the business community for over 90 years, De Grandpré Chait favours a niche-oriented approach, offering a specialized state-of-the-art service to its…” Source: RevenueBase Database · checked Aug 31, 2026
3	Singleton Urquhart Reynolds Vogel LLP	Strong evidence	Vancouver, BC, Canada	51-200	114 contacts →
	Strong evidence “We are a preeminent Canadian construction and infrastructure law firm.” Source: RevenueBase Database · checked Aug 31, 2026
4	Construction Dinamo	Indirect evidence	Quebec, Canada	51-200	78 contacts →
	Indirect evidence “La Fierté d'être Dinamo Partager tous ensemble expertise, intégrité, rigueur, engagement et travail d'équipe.” Source: RevenueBase Database · checked Aug 31, 2026
5	Brattys LLP	Indirect evidence	Vaughan, ON, Canada	51-200	69 contacts →
	Indirect evidence “Brattys LLP, established in 1957 and based in Toronto, is a top-ranked real estate firm in Canada.” Source: RevenueBase Database · checked Aug 31, 2026
6	Baker Newby LLP	Strong evidence	Chilliwack, BC, Canada	11-50	62 contacts →
	Strong evidence “Baker Newby provides a full range of quality, practical and cost effective legal services including: Agri-business, Business law, Commercial transactions or disputes, Construction…” Source: RevenueBase Database · checked Aug 31, 2026
7	LAX O'sullivan Lisus Gottlieb LLP	Indirect evidence	Toronto, ON, Canada	11-50	60 contacts →
	Indirect evidence “Lax O’Sullivan Lisus Gottlieb LLP is Canada’s preeminent business litigation firm.” Source: RevenueBase Database · checked Aug 31, 2026
8	Revay And Associates Limited	Partial evidence	Mississauga, ON, Canada	51-200	58 contacts →
	Partial evidence “As a leading construction consulting firm, we help our clients anticipate, navigate, avoid, and resolve conflicts and issues on their construction projects.” Source: RevenueBase Database · checked Aug 31, 2026
9	Sicotte Guilbault Legal Services	Indirect evidence	Ottawa, ON, Canada	51-200	56 contacts →
	Indirect evidence “Sicotte Guilbault focuses on providing clients with a wide range of specialized corporate, commercial, municipal, employment, real estate, litigation & alternate dispute…” Source: RevenueBase Database · checked Aug 31, 2026
10	Goldman Sloan Nash & Haber LLP	Indirect evidence	Toronto, ON, Canada	51-200	54 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 Aug 31, 2026
11	Templeman LLP	Partial evidence	Napanee, ON, Canada	51-200	48 contacts →
	Partial evidence “Templeman is a mid-size law firm with offices in Belleville, Kingston and Napanee, Ontario.” Source: RevenueBase Database · checked Aug 31, 2026
12	Jensen Shawa Solomon Duguid Hawkes LLP	Indirect evidence	Calgary, AB, Canada	51-200	48 contacts →
	Indirect evidence “JSS Barristers acts for substantial corporate entities as well as individuals, but takes pride in its advocacy on behalf of each one of its clients.” Source: RevenueBase Database · checked Aug 31, 2026
13	Affinity LAW	Partial evidence	Markham, ON, Canada	51-200	38 contacts →
	Partial evidence “Affinity Law Professional Corporation is a boutique law firm proudly serving the Greater Toronto Area.” Source: RevenueBase Database · checked Aug 31, 2026
14	Jenkins Marzban Logan LLP	Strong evidence	Vancouver, BC, Canada	51-200	34 contacts →
	Strong evidence “JML is one of British Columbia’s leading boutique law firms in the areas of construction, commercial and matrimonial dispute resolution.” Source: RevenueBase Database · checked Aug 31, 2026
15	Crochetière, Pétrin	Partial evidence	Anjou, QC, Canada	11-50	34 contacts →
	Partial evidence “Fondé en 1981, Crochetière Pétrin est l'un des cabinets les plus importants en droit de la construction et de l'immobilier au Québec.” Source: RevenueBase Database · checked Aug 31, 2026
16	Glaholt Bowles LLP	Strong evidence	Toronto, ON, Canada	11-50	33 contacts →
	Strong evidence “Glaholt Bowles LLP is one of Canada's most highly regarded construction law practices.” Source: RevenueBase Database · checked Aug 31, 2026
17	DJC Lawyers - Notaries	Partial evidence	Montreal, QC, Canada	51-200	32 contacts →
	Partial evidence “Located in downtown Montreal, de Grandpré Jolicœur is a boutique law firm specializing in real estate law, condominium law, secured financing and realization, litigation, and…” Source: RevenueBase Database · checked Aug 31, 2026
18	Whelton Hiutin LLP	Partial evidence	Vaughan, ON, Canada	11-50	30 contacts →
	Partial evidence “Whelton Hiutin LLP specializes in commercial and civil litigation with a particular expertise in real estate disputes, construction, class actions, personal injury and medical…” Source: RevenueBase Database · checked Aug 31, 2026
19	Robson Carpenter LLP	Indirect evidence	Ayr, ON, Canada	11-50	29 contacts →
	Indirect evidence “Based in the Region of Waterloo, Ontario, Robson Carpenter LLP offers legal advice and services to land developers (both condominium and subdivision), builders, and other real…” Source: RevenueBase Database · checked Aug 31, 2026
20	Adair Goldblatt Bieber LLP	Indirect evidence	Toronto, ON, Canada	11-50	28 contacts →
	Indirect evidence “AGB is a leading Toronto-based litigation boutique, trusted by clients Canada-wide and internationally with their commercial, civil, administrative, and regulatory litigation.” Source: RevenueBase Database · checked Aug 31, 2026
21	Swainson Miki Peskett LLP	Indirect evidence	Edmonton, AB, Canada	11-50	28 contacts →
	Indirect evidence “Swainson Miki Peskett offers corporate, commercial real estate, and commercial litigation services.” Source: RevenueBase Database · checked Aug 31, 2026
22	Goodfellow & Schuettlaw	Partial evidence	Edmonton, AB, Canada	11-50	27 contacts →
	Partial evidence “Goodfellow & Schuettlaw is a law firm with offices in Calgary and Edmonton, Alberta.” Source: RevenueBase Database · checked Aug 31, 2026
23	Mclean & Armstrong LLP	Partial evidence	West Vancouver, BC, Canada	11-50	26 contacts →
	Partial evidence “Based in West Vancouver, our firm prevents and resolves construction disputes, including those involving collection, delay and tendering issues; defective building claims; and all…” Source: RevenueBase Database · checked Aug 31, 2026
24	Donati Maisonneuve	Partial evidence	Montreal, QC, Canada	11-50	26 contacts →
	Partial evidence “Fondé en Donati Maisonneuve est un cabinet boutique spécialisé en litige oeuvrant essentiellement dans les industries de l'assurance, de la construction, de l'immobilier et des…” Source: RevenueBase Database · checked Aug 31, 2026
25	Rpgl Avocats Lawyers	Indirect evidence	Gatineau, QC, Canada	11-50	26 contacts →
	Indirect evidence “RPGL est l’une des plus importantes firmes d’avocats de la région de l’Outaouais avec près de vingt professionnels œuvrant dans toutes les sphères du droit et ses trois adresses…” Source: RevenueBase Database · checked Aug 31, 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: construction 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 construction law firms.
Partial evidence: Its own public description names part of construction law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name construction 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 218 construction law firms based in Canada

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Construction law firms based in Canada at a glance

As of Aug 31, 2026

59.6%Verified-email coverage

5.3%Mobile-number coverage

11.9Average contacts per company

1-10Median size (employees)

20.6%Largest-city concentration · Toronto

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

146

11-50

51-200

201-500

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 construction 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 Canada whose own description of what they do matches “construction 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 construction 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 construction law 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, 1,549 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 August 31, 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.

Construction law firms by metro

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 construction 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 construction law firms are there based in Canada?

RevenueBase identified 218 construction law firms headquartered in Canada as of August 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?

Langlois Avocats, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most construction law firms?

Toronto leads with 45 headquartered companies, followed by Montreal (36) and Vancouver (22).

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 1,549 verified decision-maker contacts tracked across these 218 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.