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Company lists · Data refreshed September 2026

Top 25 International business law firms based in Ottawa, Canada

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. Toronto is the largest hub.

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, how directly it supports the match, 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 SmartSearch, 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 Match evidence 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. Evidence rates how directly each company's own description names international business law firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
Smart & BiggarIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 2026501-1,000517

“Smart & Biggar is widely recognized as Canada’s leading firm for intellectual property, and with over 180 lawyers, patent agents and trademark agents.”

Source: company website · checked Sep 4, 2026
2
Kelly Santini LLPIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202651-20098

“Every client.”

Source: company website · checked Sep 4, 2026
3
Emond HarndenPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202651-20094

“Since 1987, Emond Harnden has been at the forefront of labour and employment law, proudly serving employers across Canada.”

Source: company website · checked Sep 4, 2026
4
Soloway Wright LLPIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202651-20088

“Since opening its doors in 1946, Soloway Wright LLP has built a proud history of serving its clients and community.”

Source: company website · checked Sep 4, 2026
5
Perley-Robertson, Hill & McdougallPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202651-20080

“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: company website · checked Sep 4, 2026
6
Sicotte Guilbault Legal ServicesIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202651-20056

“Sicotte Guilbault focuses on providing clients with a wide range of specialized corporate, commercial, municipal, employment, real estate, litigation & alternate dispute…”

Source: company website · checked Sep 4, 2026
7
LOW Murchison Radnoff LLPIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202651-20051

“At Low Murchison Radnoff LLP we provide a full range of legal services to our clients.”

Source: company website · checked Sep 4, 2026
8
Brazeau Seller LAWPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202651-20042

“At Brazeau Seller Law, we operate as a family of legal counselors who specialize exclusively in business law.”

Source: company website · checked Sep 4, 2026
9
Vincent Dagenais GibsonPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202611-5022

“VINCENT DAGENAIS GIBSON is one of Ottawa's leading bilingual law firms, serving the National Capital Region and surrounding areas since 1897.”

Source: company website · checked Sep 4, 2026
10
Rasmussen Starr Ruddy LLPPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202611-5021

“Rasmussen Starr Ruddy LLP (RSR) is a highly respected, Ottawa-based law firm offering forward-thinking legal counsel for both businesses and individuals.”

Source: company website · checked Sep 4, 2026
11
S.R.L. Avocats Lister Beaupré Lawyers LLPIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202611-5011

“First, we work with you.”

Source: company website · checked Sep 4, 2026
12
Edwards Creative LAWPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-109

“Canada's Entertainment Law Boutique™ We’re Canadian entertainment lawyers who understand the business of creative industries (film & television, music, digital media, software…”

Source: company website · checked Sep 4, 2026
13
Tereposky & Derose LLPStrong evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202611-508

“Tereposky & DeRose offers preeminent expertise in international trade and investment law, government procurement, and related regulatory areas.”

Source: company website · checked Sep 4, 2026
14
Navio LAWIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-108
Source: company website · checked Sep 4, 2026
15
Simard & AssociatesIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202611-508

“Welcome to Simard & Associates YOUR RIGHTS.”

Source: company website · checked Sep 4, 2026
16
Maclaren Corlett LLPIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-107

“We deliver expert advice and assistance to our clients, throughout all our practice areas, with our unique mixture of common sense and experience.”

Source: company website · checked Sep 4, 2026
17
MDK Business LAWIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-107

“We are dedicated to providing timely and effective legal advice to its small-to-medium sized entrepreneurial clients.”

Source: company website · checked Sep 4, 2026
18
Black & AssociatesIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-107

“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: company website · checked Sep 4, 2026
19
Conlin Bedard LLPPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202611-506

“Conlin Bedard LLP is a federal regulatory law firm.”

Source: company website · checked Sep 4, 2026
20
Scott LAW GroupIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 202611-505

“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: company website · checked Sep 4, 2026
21
Victor Vallance Blais LLPPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-105

“Focusing exclusively on Civil Litigation, personal injury, and Family Law, Victor Vallance Blais delivers practical, intelligent and successful solutions to clients.”

Source: company website · checked Sep 4, 2026
22
HazlolawPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-105

“HazloLaw - Business Lawyers | Avocats d'affaires is a leading Boutique Business Law Firm headquartered in Ottawa, Ontario.”

Source: company website · checked Sep 4, 2026
23
Habib & Associates LAW OfficeIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-105

“Our team of professionals at Habib & Associates believes that good communication is the foundation of a solid working relationship with clients.”

Source: company website · checked Sep 4, 2026
24
Sevigny Dupuis LLPIndirect evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-104

“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: company website · checked Sep 4, 2026
25
Rita Asangarani LAW Firm Professional CorporationPartial evidence
Ottawa, ON, CanadaHQ checked Sep 4, 20261-104

“When you work with Rita Asangarani Law Firm Professional Corporation, you are more than just a transaction.”

Source: company website · checked Sep 4, 2026

Showing 25 of 72 international business law firms based in Ottawa, Canada

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,702 reachable decision-makers.

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

As of Sep 4, 2026
1-10Median size (employees)
TorontoLargest hub · 409 HQs
Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
44
11-50
16
51-200
9
501-1,000
2

Email recency for this list is measured across the whole Canada list rather than this city, 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 evidence 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 SmartSearch, 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.
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 an evidence 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

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 has the most international business law firms?

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

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.

Ready to reach these companies? Verified emails and direct dials for all 72 international business law firms based in Ottawa, Canada. Start with a free account, no credit card.

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Related lists

Browse: Companies home · International business law firms in Canada · All Canada lists · All International business law firms lists · New lists

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 SmartSearch, 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.

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