Company lists · Data refreshed September 2026

Top 25 International business law firms based in Ottawa, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 72 companies tracked

RevenueBase identified 72 international business law firms headquartered in Ottawa, Canada as of September 2026 and tracks 2,502 professional contacts across them, including 1,702 with verified work emails. Across Canada, Toronto is the largest hub for this category (409 companies); Ottawa has 72.

This list covers international business law firms headquartered in Ottawa, 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 4, 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 4, 2026 86% judged on-target in blind review

72Companies

2,502Contacts tracked

1,702Verified emails

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The 25 largest international business law firms based in Ottawa, Canada

Ranked by team size

Top 25 of 72 international business law firms based in Ottawa, Canada, ranked by team size, largest first. Data refreshed Sep 4, 2026. RevenueBase Smart Search rates how each company's information relates to international business 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	Smart & Biggar	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	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 Sep 4, 2026
2	Kelly Santini LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	51-200	98 contacts →
	Indirect evidence “Every client.” Source: RevenueBase Database · checked Sep 4, 2026
3	Emond Harnden	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	51-200	94 contacts →
	Partial evidence “Since 1987, Emond Harnden has been at the forefront of labour and employment law, proudly serving employers across Canada.” Source: RevenueBase Database · checked Sep 4, 2026
4	Soloway Wright LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	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 Sep 4, 2026
5	Perley-Robertson, Hill & Mcdougall	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	51-200	80 contacts →
	Partial 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 Sep 4, 2026
6	Sicotte Guilbault Legal Services	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	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 Sep 4, 2026
7	LOW Murchison Radnoff LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	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 Sep 4, 2026
8	Brazeau Seller LAW	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	51-200	42 contacts →
	Partial evidence “At Brazeau Seller Law, we operate as a family of legal counselors who specialize exclusively in business law.” Source: RevenueBase Database · checked Sep 4, 2026
9	Vincent Dagenais Gibson	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	11-50	22 contacts →
	Partial 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 Sep 4, 2026
10	Rasmussen Starr Ruddy LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	11-50	21 contacts →
	Partial 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 Sep 4, 2026
11	S.R.L. Avocats Lister Beaupré Lawyers LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	11-50	11 contacts →
	Indirect evidence “First, we work with you.” Source: RevenueBase Database · checked Sep 4, 2026
12	Edwards Creative LAW	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	9 contacts →
	Partial evidence “Canada's Entertainment Law Boutique™ We’re Canadian entertainment lawyers who understand the business of creative industries (film & television, music, digital media, software…” Source: RevenueBase Database · checked Sep 4, 2026
13	Tereposky & Derose LLP	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	11-50	8 contacts →
	Strong evidence “Tereposky & DeRose offers preeminent expertise in international trade and investment law, government procurement, and related regulatory areas.” Source: RevenueBase Database · checked Sep 4, 2026
14	Navio LAW	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	8 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 4, 2026
15	Simard & Associates	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	11-50	8 contacts →
	Indirect evidence “Welcome to Simard & Associates YOUR RIGHTS.” Source: RevenueBase Database · checked Sep 4, 2026
16	Maclaren Corlett LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	7 contacts →
	Indirect evidence “We deliver expert advice and assistance to our clients, throughout all our practice areas, with our unique mixture of common sense and experience.” Source: RevenueBase Database · checked Sep 4, 2026
17	MDK Business LAW	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	7 contacts →
	Indirect evidence “We are dedicated to providing timely and effective legal advice to its small-to-medium sized entrepreneurial clients.” Source: RevenueBase Database · checked Sep 4, 2026
18	Black & Associates	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	7 contacts →
	Indirect evidence “Black & Associates is an innovative civil and commercial litigation firm located in downtown Ottawa comprising of lawyers Katie Black, Kelli Day, and Sarah Lag.” Source: RevenueBase Database · checked Sep 4, 2026
19	Conlin Bedard LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	11-50	6 contacts →
	Partial evidence “Conlin Bedard LLP is a federal regulatory law firm.” Source: RevenueBase Database · checked Sep 4, 2026
20	Scott LAW Group	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	11-50	5 contacts →
	Indirect evidence “With a group of 14 dedicated professionals and support staff, our clients have come to appreciate the friendly, approachable and unpretentious atmosphere at our firm.” Source: RevenueBase Database · checked Sep 4, 2026
21	Victor Vallance Blais LLP	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	5 contacts →
	Partial evidence “Focusing exclusively on Civil Litigation, personal injury, and Family Law, Victor Vallance Blais delivers practical, intelligent and successful solutions to clients.” Source: RevenueBase Database · checked Sep 4, 2026
22	Hazlolaw	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	5 contacts →
	Partial evidence “HazloLaw - Business Lawyers \| Avocats d'affaires is a leading Boutique Business Law Firm headquartered in Ottawa, Ontario.” Source: RevenueBase Database · checked Sep 4, 2026
23	Habib & Associates LAW Office	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	5 contacts →
	Indirect evidence “Our team of professionals at Habib & Associates believes that good communication is the foundation of a solid working relationship with clients.” Source: RevenueBase Database · checked Sep 4, 2026
24	Sevigny Dupuis LLP	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	4 contacts →
	Indirect evidence “At Sevigny Dupuis, we recognize that workplace disputes come in all shapes and sizes and that effective legal representation requires an approach that is specifically tailored to…” Source: RevenueBase Database · checked Sep 4, 2026
25	Rita Asangarani LAW Firm Professional Corporation	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 4, 2026	1-10	4 contacts →
	Partial evidence “When you work with Rita Asangarani Law Firm Professional Corporation, you are more than just a transaction.” Source: RevenueBase Database · checked Sep 4, 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: international business 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 international business law firms.
Partial evidence: Its own public description names part of international business law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name international business 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 72 international business law firms based in Ottawa, Canada

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International business law firms based in Ottawa, Canada at a glance

As of Sep 4, 2026

68.0%Verified-email coverage

34.8Average contacts per company

1-10Median size (employees)

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Email recency for this list is measured across the whole Canada list rather than for Ottawa, so it is reported there. Company counts and contact totals on this page are exact for Ottawa, over 72 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 international business 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 “international business 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 international business 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 international business 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, 1,702 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 4, 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.

International business 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 international business 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 international business law firms are there based in Ottawa, Canada?

RevenueBase identified 72 international business law firms headquartered in Ottawa, 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?

Smart & Biggar, headquartered in Ottawa, tops this list with the largest team on record.

Which city in Canada has the most international business law firms?

Toronto leads Canada with 409 headquartered companies, followed by Montreal (197) and Vancouver (152). Ottawa has 72.

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 1,702 verified decision-maker contacts tracked across these 72 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 4, 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.