Company lists · Data refreshed September 2026

Top 15 Advertising and marketing law firms based in Ottawa, Canada

RevenueBase identified 26 company matches for advertising and marketing law firms associated with Ottawa, Canada as of September 2026 and tracks 1,043 professional contacts across them, including 612 with verified work emails. Across Canada, Toronto is the largest hub for this category (164 companies); Ottawa has 26.

This list covers company matches for advertising and marketing law firms associated with Ottawa, Canada, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
26Companies
1,043Contacts tracked
612Verified emails
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The 15 largest advertising and marketing law firms based in Ottawa, Canada

Ranked by team size
Top 15 of 26 company matches for advertising and marketing law firms based in Ottawa, Canada, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 2026501-1,000521 contacts →

Exact match

“Smart & Biggar is a Canadian intellectual property law firm.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 202651-200131 contacts →

Exact match

“MBM Intellectual Property Law is a dynamic and progressive law firm that practices exclusively in the area of intellectual property (IP) with offices throughout Canada.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 202651-20099 contacts →

Exact match

“Every client.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 202651-20070 contacts →

Exact match

“Welcome to Mann Lawyers LLP.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 202651-20056 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 202651-20052 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 20261-1010 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 20261-108 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 202611-505 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 20261-105 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 20261-105 contacts →

Exact match

“A.P.Strom and Associates specializes in organizing litigation by serving as litigation solicitors for businesses and individuals.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 20261-104 contacts →

Exact match

“One of the biggest challenges known to man is reaching the highest point on Earth, Mt.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 202611-503 contacts →

Exact match

“Our team of experienced lawyers, agents and paralegals offer a full range of procurement and protection services in all areas of intellectual property (IP) law.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchOttawa, CanadaHQ recorded Sep 27, 20261-101 contacts →

Exact match

“Van Loon Simmons Professional Corporation is a boutique law firm in Ottawa specializing in copyright, broadcasting and government relations law and policy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchOttawa, ON, CanadaHQ recorded Sep 27, 20261-101 contacts →

Exact match

“For more than a decade, Jensen IP has been helping companies protect their trademark and brand assets in Canada and around the world.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 15 of 26 advertising and marketing law firms based in Ottawa, Canada

See the full list, filter by size, metro and specialty, and access 612 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Advertising and marketing law firms based in Ottawa, Canada at a glance

As of Sep 27, 2026
58.7%Verified-email coverage
40.1Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
13
11-50
6
51-200
6
501-1,000
1

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 26 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with Ottawa, Canada whose business descriptions match “advertising and marketing law firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 612 professional contacts with verified work emails across the full matched dataset. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “advertising and marketing law firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many advertising and marketing law firms are there based in Ottawa, Canada?

RevenueBase identified 26 company matches for advertising and marketing law firms associated with Ottawa, Canada as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Smart & Biggar tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in Canada has the most advertising and marketing law firms?

Toronto leads Canada with 164 company records, followed by Montreal (52) and Vancouver (34). Ottawa has 26.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 612 professional contacts with verified work emails tracked across these 26 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 2026.

Ready to reach these companies? Verified emails and direct dials for all 26 advertising and marketing law firms based in Ottawa, Canada. Start with a free account, no credit card.

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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 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.