Company lists · Data refreshed August 2026

Top 25 Clinical trial recruitment firms based in Canada

Name: Clinical trial recruitment firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Aug 31, 2026 90 companies tracked

RevenueBase identified 90 clinical trial recruitment firms headquartered in Canada as of August 2026 and tracks 3,491 professional contacts across them, including 1,427 with verified work emails and 197 with mobile numbers. Toronto is the largest hub.

This list covers clinical trial recruitment 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 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

90Companies

3,491Contacts tracked

1,427Verified emails

197Mobile numbers

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The 25 largest clinical trial recruitment firms based in Canada

Ranked by team size

Top 25 of 90 clinical trial recruitment firms based in Canada, ranked by team size, largest first. Data refreshed Aug 31, 2026. RevenueBase Smart Search rates how each company's information relates to clinical trial recruitment 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	Cliantha Research Limited	Strong evidence	Toronto, ON, Canada	1,001-5,000	1,597 contacts →
	Strong evidence “Cliantha Research, full-service clinical research organization (CRO), provides comprehensive and integrated offerings in Early Phase (BA/BE and Phase I) trials, Late Phase (Phase…” Source: RevenueBase Database · checked Aug 31, 2026
2	Pharma Medica Research INC	Indirect evidence	Toronto, ON, Canada	201-500	564 contacts →
	Indirect evidence “Pharma Medica Research is a full service early phase contract research organization.” Source: RevenueBase Database · checked Aug 31, 2026
3	Biopharma Services INC	Indirect evidence	Toronto, ON, Canada	201-500	316 contacts →
	Indirect evidence Source: RevenueBase Database · checked Aug 31, 2026
4	TRIO	Partial evidence	Edmonton, AB, Canada	201-500	229 contacts →
	Partial evidence “TRIO is a unique, full-service oncology clinical research organization (CRO) that leverages the strengths of our worldwide network of Investigators, academic leaders, patient…” Source: RevenueBase Database · checked Aug 31, 2026
5	Probity Medical Research Inc. PMR	Strong evidence	Waterloo, ON, Canada	51-200	81 contacts →
	Strong evidence “Probity Medical Research (PMR) is a leading clinical research consortium with over 75 clinical trials sites.” Source: RevenueBase Database · checked Aug 31, 2026
6	Diex Research	Partial evidence	Sherbrooke, QC, Canada	51-200	65 contacts →
	Partial evidence “Dedicated exclusively to clinical research, Diex Research is a thriving company with international experience that provides a unique business model and an opportunity for private…” Source: RevenueBase Database · checked Aug 31, 2026
7	Syreon Health Sciences	Partial evidence	Vancouver, BC, Canada	51-200	47 contacts →
	Partial evidence “INTERNATIONAL CLINICAL RESEARCH FOR COMPLEX DISEASES Syreon is an investigator-led Clinical Research Organization (CRO) that brings together senior investigators, deep domain…” Source: RevenueBase Database · checked Aug 31, 2026
8	Ozmosis Research INC	Strong evidence	Toronto, ON, Canada	11-50	45 contacts →
	Strong evidence “Ozmosis Research is an independent, entrepreneurial clinical trials management company in Canada operating as a social enterprise (not for profit).” Source: RevenueBase Database · checked Aug 31, 2026
9	Stiris Research INC	Strong evidence	London, ON, Canada	51-200	37 contacts →
	Strong evidence “Stiris Research is an entrepreneurial Clinical Trial Management company providing Phase I through full-service support to Biotechnology and Biopharmaceutical companies.” Source: RevenueBase Database · checked Aug 31, 2026
10	Ethica CRO	Indirect evidence	Montreal, QC, Canada	51-200	31 contacts →
	Indirect evidence “ethica CRO is a specialized Contract Research Organization (CRO) focused on medical aesthetics, dermatology, and neurology, supporting pharmaceutical, biotechnology, and medical…” Source: RevenueBase Database · checked Aug 31, 2026
11	Scimega Expert Oncology CRO	Partial evidence	Laval, QC, Canada	11-50	18 contacts →
	Partial evidence “Founded in 1997, Scimega is a specialized CRO skilled in collaborative vendor teaming with 25 years unparalleled Canadian oncology experience, 100+ successful oncology clinical…” Source: RevenueBase Database · checked Aug 31, 2026
12	Bowhead Health	Indirect evidence	Ottawa, ON, Canada	11-50	18 contacts →
	Indirect evidence “Bowhead Health's mission is to make cancer care more efficient for everyone in the world.” Source: RevenueBase Database · checked Aug 31, 2026
13	Sciteline	Partial evidence	Toronto, ON, Canada	11-50	13 contacts →
	Partial evidence “Sciteline is a Toronto-based SaaS company advancing clinical research through patient-centric digital solutions made by Canadians, for Canadians.” Source: RevenueBase Database · checked Aug 31, 2026
14	Refuah Solutions LTD	Partial evidence	Winnipeg, MB, Canada	1-10	13 contacts →
	Partial evidence “Established in 2018 by a number of senior clinical investigators and study coordinators, Refuah Solutions Ltd.(RFL) is a privately held company headquartered in Canada with its…” Source: RevenueBase Database · checked Aug 31, 2026
15	Clincove	Strong evidence	Toronto, ON, Canada	11-50	12 contacts →
	Strong evidence “CLINCOVE is a leading provider of innovative solutions in the healthcare industry, specializing in comprehensive clinical trial solutions that revolutionize the way data is…” Source: RevenueBase Database · checked Aug 31, 2026
16	Centre DE Recherche Saint-Louis	Indirect evidence	Quebec, QC, Canada	11-50	11 contacts →
	Indirect evidence “Fondé en par les Drs Pierre Lachance et René Therrien, le Centre de recherche en Études cliniques de la Clinique médicale Saint-Louis favorise l’épanouissement des sciences…” Source: RevenueBase Database · checked Aug 31, 2026
17	Trial Management Group INC	Strong evidence	Toronto, ON, Canada	11-50	8 contacts →
	Strong evidence “Excellence in Clinical Investigations Trial Management Group Inc.(TMG) is Canada’s leading clinical investigator network with the largest number of experienced primary care and…” Source: RevenueBase Database · checked Aug 31, 2026
18	Prime Site Research Solutions INC	Indirect evidence	Edmonton, Canada	11-50	8 contacts →
	Indirect evidence “Primesite Research Solutions is an Integrative Research Organization and Site Network based out of Western Canada.” Source: RevenueBase Database · checked Aug 31, 2026
19	Q-Croc	Partial evidence	Quebec, QC, Canada	11-50	8 contacts →
	Partial evidence “The Quebec - Clinical Research Organization in Cancer (Q-CROC) is a not-for-profit organization that has been active since 2008.” Source: RevenueBase Database · checked Aug 31, 2026
20	Q&t Research	Indirect evidence	Sherbrooke, QC, Canada	11-50	7 contacts →
	Indirect evidence “Q&T Research Sherbrooke is a multi-therapeutic dedicated research center.” Source: RevenueBase Database · checked Aug 31, 2026
21	Tdda Specialty Research	Strong evidence	Vaughan, ON, Canada	11-50	7 contacts →
	Strong evidence “At TDDA, our mission is to deliver high quality clinical trial services to our clients in the pharmaceutical industry while providing physicians and patients access to advanced…” Source: RevenueBase Database · checked Aug 31, 2026
22	Ecogene-21	Partial evidence	Saguenay, QC, Canada	11-50	6 contacts →
	Partial evidence “A non-for-profit (NPO) clinical research organization dedicated to access to innovations for unmet medical needs, coordinated from the Saguenay–Lac-Saint-Jean region and…” Source: RevenueBase Database · checked Aug 31, 2026
23	Alpha Recherche Clinique	Indirect evidence	Levis, QC, Canada	11-50	6 contacts →
	Indirect evidence “Alpha Recherche Clinique est une entreprise de recherche clinique privée dans la région de Québec fondée par des infirmières en 2008.” Source: RevenueBase Database · checked Aug 31, 2026
24	Clinical Development Solutions	Strong evidence	Winnipeg, MB, Canada	11-50	6 contacts →
	Strong evidence “Clinical Development Solutions (CDS) is a Contract Research Organization providing strategic drug development, clinical trial, regulatory, pharmacovigilance and quality assurance…” Source: RevenueBase Database · checked Aug 31, 2026
25	Bluewater Clinical Research Group	Indirect evidence	Sarnia, ON, Canada	1-10	6 contacts →
	Indirect evidence 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: clinical trial recruitment 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 clinical trial recruitment firms.
Partial evidence: Its own public description names part of clinical trial recruitment firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name clinical trial recruitment 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 90 clinical trial recruitment firms based in Canada

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Clinical trial recruitment firms based in Canada at a glance

As of Aug 31, 2026

40.9%Verified-email coverage

5.6%Mobile-number coverage

38.8Average contacts per company

11-50Median size (employees)

26.7%Largest-city concentration · Toronto

Aug 31, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 clinical trial recruitment 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 “clinical trial recruitment 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 clinical trial recruitment 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 clinical trial recruitment 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, 1,427 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.

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 clinical trial recruitment 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 clinical trial recruitment firms are there based in Canada?

RevenueBase identified 90 clinical trial recruitment firms headquartered in Canada as of August 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?

Cliantha Research Limited, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most clinical trial recruitment firms?

Toronto leads with 24 headquartered companies, followed by Montreal (10) and Edmonton (6).

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 1,427 verified decision-maker contacts tracked across these 90 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on August 31, 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.