Company lists · Data refreshed August 2026

Top 25 Law firms based in Ottawa, Canada

Name: Law firms based in Ottawa, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 161 companies tracked

This directory lists 161 law firms based in Ottawa, Canada, with 3,113 professional contacts and 2,044 email addresses. As of August 2026, Toronto is the single most-represented city among the companies listed.

Law firms are professional service organizations that provide legal advice, representation, and related services through licensed attorneys. This list covers companies that provide legal advice, legal representation, or related legal services through licensed attorneys. Ranked by team size, largest first. Data current as of 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

161Companies

3,113Contacts tracked

2,044Verified emails

204Mobile numbers

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The 25 largest law firms based in Ottawa, Canada

Ranked by team size

Top 25 of 161 law firms based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to 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	Bennett Jones	Strong evidence	Ottawa, ON, Canada	501-1,000	1,134 contacts →
	Strong evidence “For over a century, Bennett Jones has been an internationally recognized Canadian law firm founded and focused on principles of professional excellence, integrity, respect and…” Source: RevenueBase Database · checked Aug 31, 2026
2	Smart & Biggar	Indirect evidence	Ottawa, ON, Canada	501-1,000	517 contacts →
	Indirect evidence “Smart & Biggar is widely recognized as Canada’s leading firm for intellectual property, and with over 180 lawyers, patent agents and trademark agents.” Source: RevenueBase Database · checked Aug 31, 2026
3	Nelligan LAW	Strong evidence	Ottawa, ON, Canada	51-200	119 contacts →
	Strong evidence “Nelligan Law is an Ottawa-based multi-practice law firm.” Source: RevenueBase Database · checked Aug 31, 2026
4	Kelly Santini LLP	Indirect evidence	Ottawa, ON, Canada	51-200	98 contacts →
	Indirect evidence “Every client.” Source: RevenueBase Database · checked Aug 31, 2026
5	Emond Harnden	Strong evidence	Ottawa, ON, Canada	51-200	94 contacts →
	Strong evidence “Since 1987, Emond Harnden has been at the forefront of labour and employment law, proudly serving employers across Canada.” Source: RevenueBase Database · checked Aug 31, 2026
6	Soloway Wright LLP	Indirect evidence	Ottawa, ON, Canada	51-200	88 contacts →
	Indirect evidence “Since opening its doors in 1946, Soloway Wright LLP has built a proud history of serving its clients and community.” Source: RevenueBase Database · checked Aug 31, 2026
7	Perley-Robertson, Hill & Mcdougall	Indirect evidence	Ottawa, ON, Canada	51-200	80 contacts →
	Indirect evidence “Founded in Ottawa in 1971, Perley-Robertson, Hill & McDougall has provided effective, innovative legal solutions to Canadian and international clients on a broad range of business…” Source: RevenueBase Database · checked Aug 31, 2026
8	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
9	LOW Murchison Radnoff LLP	Indirect evidence	Ottawa, ON, Canada	51-200	51 contacts →
	Indirect evidence “At Low Murchison Radnoff LLP we provide a full range of legal services to our clients.” Source: RevenueBase Database · checked Aug 31, 2026
10	Brazeau Seller LAW	Strong evidence	Ottawa, ON, Canada	51-200	42 contacts →
	Strong evidence “At Brazeau Seller Law, we operate as a family of legal counselors who specialize exclusively in business law.” Source: RevenueBase Database · checked Aug 31, 2026
11	Juristes Power	Strong evidence	Ottawa, ON, Canada	11-50	36 contacts →
	Strong evidence “Power Law is a cutting-edge bilingual Canadian boutique law firm focused on litigation and public law - including, among other areas, education law, administrative law, and…” Source: RevenueBase Database · checked Aug 31, 2026
12	Mcnally Gervan LLP	Strong evidence	Ottawa, ON, Canada	11-50	24 contacts →
	Strong evidence “McNally Gervan LLP is an Ottawa law firm focusing on personal injury and insurance litigation.” Source: RevenueBase Database · checked Aug 31, 2026
13	Achkar LAW	Indirect evidence	Ottawa, ON, Canada	11-50	24 contacts →
	Indirect evidence “No-nonsense lawyers providing straightforward no-nonsense legal help to businesses and professionals.” Source: RevenueBase Database · checked Aug 31, 2026
14	Conway Baxter Wilson LLP S.R.L	Indirect evidence	Ottawa, ON, Canada	11-50	22 contacts →
	Indirect evidence “Founded in 2014, Conway is a boutique litigation firm located in Ottawa.” Source: RevenueBase Database · checked Aug 31, 2026
15	Vincent Dagenais Gibson	Strong evidence	Ottawa, ON, Canada	11-50	22 contacts →
	Strong evidence “VINCENT DAGENAIS GIBSON is one of Ottawa's leading bilingual law firms, serving the National Capital Region and surrounding areas since 1897.” Source: RevenueBase Database · checked Aug 31, 2026
16	Rasmussen Starr Ruddy LLP	Strong evidence	Ottawa, ON, Canada	11-50	21 contacts →
	Strong evidence “Rasmussen Starr Ruddy LLP (RSR) is a highly respected, Ottawa-based law firm offering forward-thinking legal counsel for both businesses and individuals.” Source: RevenueBase Database · checked Aug 31, 2026
17	Davidson Houle Allen LLP	Strong evidence	Ottawa, ON, Canada	11-50	20 contacts →
	Strong evidence “Davidson Houle Allen LLP Condominium Law is a preeminent boutique condominium law firm established in 2017.” Source: RevenueBase Database · checked Aug 31, 2026
18	David Sauvé LLP	Indirect evidence	Ottawa, ON, Canada	11-50	19 contacts →
	Indirect evidence “David \| Sauvé LLP is Ottawa and Montréal's dynamic litigation boutique.” Source: RevenueBase Database · checked Aug 31, 2026
19	Kirby Eades Gale Baker	Indirect evidence	Ottawa, ON, Canada	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 Aug 31, 2026
20	Aventum IP LAW LLP	Strong evidence	Ottawa, ON, Canada	11-50	14 contacts →
	Strong 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 Aug 31, 2026
21	Richardson Hall LLP	Indirect evidence	Ottawa, ON, Canada	1-10	13 contacts →
	Indirect evidence “A small litigation boutique in Ottawa, Ontario, which serves clients across the East Region.” Source: RevenueBase Database · checked Aug 31, 2026
22	S.R.L. Avocats Lister Beaupré Lawyers LLP	Indirect evidence	Ottawa, ON, Canada	11-50	11 contacts →
	Indirect evidence “First, we work with you.” Source: RevenueBase Database · checked Aug 31, 2026
23	Aitken Klee LLP	Indirect evidence	Ottawa, ON, Canada	11-50	11 contacts →
	Indirect evidence “Aitken Klee specializes in complex intellectual property litigation.” Source: RevenueBase Database · checked Aug 31, 2026
24	Legal Direct	Strong evidence	Ottawa, ON, Canada	1-10	11 contacts →
	Strong evidence “Law firm experienced in refinancing and mortgages with locations in Richmond Hill & Ottawa, Ontario.” Source: RevenueBase Database · checked Aug 31, 2026
25	Arbique & Ahde Associate Lawyers	Strong evidence	Ottawa, ON, Canada	11-50	10 contacts →
	Strong evidence “Arbique & Ahde is a small personal law firm serving the needs of both individual and corporate clients.” 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: 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 law firms.
Partial evidence: Its own public description names part of law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name 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 161 law firms based in Ottawa, Canada

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Law firms based in Ottawa, Canada at a glance

As of Aug 31, 2026

65.7%Verified-email coverage

6.6%Mobile-number coverage

19.3Average contacts per company

1-10Median size (employees)

559.6%Largest-city concentration · Toronto

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

109

11-50

51-200

501-1,000

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 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 Ottawa, Canada whose own description of what they do matches “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 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 law firms, and records with no verified work email. Companies headquartered outside Ottawa 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, 2,044 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.

Law firms by metro in Canada

Frequently asked

How many law firms are listed based in Ottawa, Canada?

The directory includes 161 law firms based in Ottawa, Canada as of August 2026.

Where are most of the listed law firms located?

Toronto is the single most-represented city among the law firms on the list.

How many contacts and email addresses are available for these law firms?

The list includes 3,113 professional contacts and 2,044 email addresses for the listed law firms.

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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.