Company lists · Data refreshed September 2026

Top 25 Regulatory affairs law firms based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 101 companies tracked

RevenueBase identified 101 regulatory affairs law firms headquartered in Canada as of September 2026 and tracks 553 professional contacts across them, including 276 with verified work emails. Toronto is the largest hub.

This list covers regulatory affairs 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 September 29, 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 29, 2026 86% judged on-target in blind review

101Companies

553Contacts tracked

276Verified emails

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The 25 largest regulatory affairs law firms based in Canada

Ranked by team size

Top 25 of 101 regulatory affairs law firms based in Canada, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to regulatory affairs 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	Q&c Services	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 29, 2026	51-200	65 contacts →
	Indirect evidence “Q&C is the largest independent full-service consultant and importer for Health Canada, US FDA and internationally regulated drugs, APIs, natural health products and medical…” Source: RevenueBase Database · checked Sep 29, 2026
2	Intrinsik Corp.	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 29, 2026	51-200	46 contacts →
	Partial evidence “As a recognized leader in the industry, our team of experts provide regulatory and scientific advice to help you identify the most efficient drug development and registration…” Source: RevenueBase Database · checked Sep 29, 2026
3	Axsource	Partial evidence	Oakville, ON, CanadaHQ checked Sep 29, 2026	51-200	38 contacts →
	Partial evidence “AXSource® is the only company headquartered in North America with Regulatory & Quality Consulting and Microsoft Dynamics expertise under one roof.” Source: RevenueBase Database · checked Sep 29, 2026
4	Gilbert's LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	33 contacts →
	Partial evidence “Gilbert's LLP is an agile, energetic law firm with an astonishing track record.” Source: RevenueBase Database · checked Sep 29, 2026
5	Quality Smart Solutions	Partial evidence	Burlington, ON, CanadaHQ checked Sep 29, 2026	11-50	22 contacts →
	Partial evidence “Since 2007, Quality Smart Solutions has guided health and consumer product companies through complex regulatory requirements across Canada, the United States, and global markets.” Source: RevenueBase Database · checked Sep 29, 2026
6	Validapro	Partial evidence	Québec, QC, CanadaHQ checked Sep 29, 2026	11-50	19 contacts →
	Partial evidence “VALIDAPRO is a consulting firm entirely dedicated to the regulatory compliance, validation and engineering needs of the life sciences industries, particularly the pharmaceutical…” Source: RevenueBase Database · checked Sep 29, 2026
7	Paul Dick & Associates LTD	Partial evidence	Guelph, ON, CanadaHQ checked Sep 29, 2026	11-50	18 contacts →
	Partial evidence “Founded in 2010, Paul Dick & Associates (PDA) is a Canadian consulting company specializing in the creation of outstanding product development, regulatory and commercial value for…” Source: RevenueBase Database · checked Sep 29, 2026
8	Lanctot Avocats, S.A	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 29, 2026	11-50	18 contacts →
	Indirect evidence “Situé à Montréal, Lanctot Avocats est un cabinet qui met son expérience au service des entreprises et des organisations.” Source: RevenueBase Database · checked Sep 29, 2026
9	Regulatory Solutions INC	Partial evidence	Caledon, ON, CanadaHQ checked Sep 29, 2026	11-50	17 contacts →
	Partial evidence “Since 2001, Regulatory Solutions has been a pharmaceutical regulatory approval/compliance consulting company with extensive success in obtaining Canadian government approvals for…” Source: RevenueBase Database · checked Sep 29, 2026
10	INQ LAW	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “We stay on top of emerging trends so your business can seize the opportunities of today’s rapidly changing world.” Source: RevenueBase Database · checked Sep 29, 2026
11	Spharm INC	Strong evidence	Val-d’or, CanadaHQ checked Sep 29, 2026	1-10	13 contacts →
	Strong evidence “SPharm is a leading regulatory consulting firm specialized in drug regulatory affairs services.” Source: RevenueBase Database · checked Sep 29, 2026
12	Bioacuity Consulting INC	Indirect evidence	Oakville, ON, CanadaHQ checked Sep 29, 2026	1-10	9 contacts →
	Indirect evidence “A results-oriented consulting firm specializing in fast-paced, biopharm and hi-tech start-ups & small to mid-sized enterprises.” Source: RevenueBase Database · checked Sep 29, 2026
13	Regxia INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	9 contacts →
	Partial evidence “Regxia is a unique scientific and regulatory consulting firm serving the pharmaceutical and biotech industries.” Source: RevenueBase Database · checked Sep 29, 2026
14	Q&r Canada INC	Indirect evidence	Oakville, ON, CanadaHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
15	Rosen Sunshine LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “Rosen Sunshine LLP is a boutique health law firm.” Source: RevenueBase Database · checked Sep 29, 2026
16	Markwell Clarizio LLP	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	7 contacts →
	Partial evidence “We are an intellectual property and drug regulatory litigation firm in Toronto, Canada.” Source: RevenueBase Database · checked Sep 29, 2026
17	MCS Associates	Strong evidence	Mississauga, ON, CanadaHQ checked Sep 29, 2026	11-50	7 contacts →
	Strong evidence “We provide Research & Development, Regulatory Affairs & Licensing expertise, GMP Programs and Quality Support and Pharmacovigilance Programs to get products to market quickly and…” Source: RevenueBase Database · checked Sep 29, 2026
18	Conlin Bedard LLP	Strong evidence	Ottawa, ON, CanadaHQ checked Sep 29, 2026	11-50	6 contacts →
	Strong evidence “Conlin Bedard LLP is a federal regulatory law firm.” Source: RevenueBase Database · checked Sep 29, 2026
19	DSA Consultants	Strong evidence	Oakville, ON, CanadaHQ checked Sep 29, 2026	11-50	6 contacts →
	Strong evidence “DSA Consultants: Your Partner for Regulatory Affairs & GMP Quality Compliance.” Source: RevenueBase Database · checked Sep 29, 2026
20	Custom Healthcare Compliance Solutions	Partial evidence	Montreal, QC, CanadaHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “Our expertise lies in operationalizing myriad global Healthcare Fraud and Abuse laws, regulations and guidelines into streamlined business processes that protect your company.” Source: RevenueBase Database · checked Sep 29, 2026
21	Fineberg Ramamoorthy LLP	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
22	Naturalsci Regulatory Consulting	Strong evidence	Waterloo, ON, CanadaHQ checked Sep 29, 2026	1-10	4 contacts →
	Strong evidence “NaturalSci Reg provides full-service Regulatory Affairs Expertise for Natural Health Products & Cannabis.” Source: RevenueBase Database · checked Sep 29, 2026
23	Rudra Solutions INC	Indirect evidence	Victoria, BC, CanadaHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “Rudra Solutions is a global life sciences consulting and innovation firm helping pharma, biotech, nutraceutical, cannabis, and medical device companies solve challenges at the…” Source: RevenueBase Database · checked Sep 29, 2026
24	Consultpharm INC	Strong evidence	Saint-sauveur, QC, CanadaHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “Consultpharm’s team of experts accompanies clients across the continents in meeting Health Canada requirements in terms of regulatory affairs, pharmacovigilance, quality assurance…” Source: RevenueBase Database · checked Sep 29, 2026
25	Mcintyre Szabo PC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	1-10	3 contacts →
	Indirect evidence “John McIntyre (he/him) and Jessica Szabo (she/her) founded McIntyre Szabo PC, to provide healthcare institutions and practitioners with dependable, creative and cost-effective…” Source: RevenueBase Database · checked Sep 29, 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: regulatory affairs 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 regulatory affairs law firms.
Partial evidence: Its own public description names part of regulatory affairs law firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name regulatory affairs 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 101 regulatory affairs law firms based in Canada

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Regulatory affairs law firms based in Canada at a glance

As of Sep 29, 2026

49.9%Verified-email coverage

5.5Average contacts per company

1-10Median size (employees)

25.7%Largest-city concentration · Toronto

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 101 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 regulatory affairs 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 “regulatory affairs 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 regulatory affairs 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 regulatory affairs 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, 276 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 29, 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.

Regulatory affairs law firms by metro

Regulatory affairs law firms in Toronto26

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 regulatory affairs 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 regulatory affairs law firms are there based in Canada?

RevenueBase identified 101 regulatory affairs law firms headquartered in 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?

Q&c Services, headquartered in Mississauga, tops this list with the largest team on record.

Which city has the most regulatory affairs law firms?

Toronto leads with 26 headquartered companies, followed by Montreal (10) and Mississauga (8).

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 276 verified decision-maker contacts tracked across these 101 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 29, 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.