Company lists · Data refreshed September 2026

Top 25 Investigative site organizations based in Canada

Name: Investigative site organizations based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 108 companies tracked

RevenueBase identified 108 investigative site organizations headquartered in Canada as of September 2026 and tracks 2,390 professional contacts across them, including 1,369 with verified work emails. Toronto is the largest hub.

This list covers investigative site organizations 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 20, 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 20, 2026 86% judged on-target in blind review

108Companies

2,390Contacts tracked

1,369Verified emails

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The 25 largest investigative site organizations based in Canada

Ranked by team size

Top 25 of 108 investigative site organizations based in Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to investigative site organizations: 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	Everest Clinical Research	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	501-1,000	498 contacts →
	Indirect evidence “Everest Clinical Research ("Everest") is a full-service contract research organization (CRO) providing a broad range of expertise-based clinical research services to worldwide…” Source: RevenueBase Database · checked Sep 20, 2026
2	JSS Medical Research	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	201-500	405 contacts →
	Indirect evidence “JSS Medical Research is a full service clinical research organization (CRO) with strong academic affiliations offering a wide range of services internationally.” Source: RevenueBase Database · checked Sep 20, 2026
3	TRIO	Indirect evidence	Edmonton, AB, CanadaHQ checked Sep 20, 2026	201-500	232 contacts →
	Indirect 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 Sep 20, 2026
4	SGS Nutrasource	Indirect evidence	Guelph, ON, CanadaHQ checked Sep 20, 2026	51-200	102 contacts →
	Indirect evidence “Nutrasource is a full-service contract research organization (CRO) that helps health companies bring products to market with strong science and regulatory confidence - from…” Source: RevenueBase Database · checked Sep 20, 2026
5	Nucro-Technics INC	Indirect evidence	Scarborough, ON, CanadaHQ checked Sep 20, 2026	51-200	89 contacts →
	Indirect evidence “Since 1970, NUCRO-TECHNICS, a Pharmaceutical Contract Support Organization has been a partner to pharmaceutical and biopharmaceutical companies located all over the world.” Source: RevenueBase Database · checked Sep 20, 2026
6	Probity Medical Research Inc. PMR	Partial evidence	Waterloo, ON, CanadaHQ checked Sep 20, 2026	51-200	84 contacts →
	Partial evidence “Probity Medical Research (PMR) is a leading clinical research consortium with over 75 clinical trials sites.” Source: RevenueBase Database · checked Sep 20, 2026
7	Diex Research	Indirect evidence	Sherbrooke, QC, CanadaHQ checked Sep 20, 2026	51-200	66 contacts →
	Indirect 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 Sep 20, 2026
8	Biospective INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	51-200	59 contacts →
	Indirect evidence “Biospective is a leading Contract Research Organization (CRO) specializing in Neuroscience research studies.” Source: RevenueBase Database · checked Sep 20, 2026
9	CRC Research CRC Recherches	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	50 contacts →
	Indirect evidence “CRC Research is a CRIC Accredited Agency Seal marketing research company, offering full service healthcare research and comprehensive consumer and medical field services…” Source: RevenueBase Database · checked Sep 20, 2026
10	Syreon Health Sciences	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	51-200	47 contacts →
	Indirect 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 Sep 20, 2026
11	Ozmosis Research INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	45 contacts →
	Indirect 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 Sep 20, 2026
12	Ethica CRO	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	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 Sep 20, 2026
13	Black Tusk Research Group	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “Black Tusk Research Group is a Site Management Organization located in downtown Vancouver that specializes in operating clinical trials for hospital investigators.” Source: RevenueBase Database · checked Sep 20, 2026
14	Investigative Journalism Foundation	Partial evidence	Toronto, CanadaHQ checked Sep 20, 2026	11-50	27 contacts →
	Partial evidence “The Investigative Journalism Foundation (IJF) is a nonprofit media outlet building a new model for Canadian media.” Source: RevenueBase Database · checked Sep 20, 2026
15	Aberdeen Investigations INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 20, 2026	51-200	27 contacts →
	Partial evidence “Aberdeen Investigation Inc.” Source: RevenueBase Database · checked Sep 20, 2026
16	Scimega Expert Oncology CRO	Indirect evidence	Laval, QC, CanadaHQ checked Sep 20, 2026	11-50	18 contacts →
	Indirect 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 Sep 20, 2026
17	Clinical Trials Ontario	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	15 contacts →
	Indirect evidence “Clinical Trials Ontario is a leading organization in the clinical trials community dedicated to strengthening, promoting and capitalizing on Ontario’s competitive advantages for…” Source: RevenueBase Database · checked Sep 20, 2026
18	Refuah Solutions LTD	Indirect evidence	Winnipeg, MB, CanadaHQ checked Sep 20, 2026	1-10	14 contacts →
	Indirect 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 Sep 20, 2026
19	The Discourse	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “The Discourse is an independent journalism company dedicated to in-depth reporting on complex issues facing Canada and the world.” Source: RevenueBase Database · checked Sep 20, 2026
20	Reed Research Investigations	Partial evidence	Markham, ON, CanadaHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “Reed Research is your powerful partner in Insurance, Corporate and Legal Investigations.” Source: RevenueBase Database · checked Sep 20, 2026
21	Veritas IRB INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 20, 2026	11-50	12 contacts →
	Indirect evidence “Veritas IRB has served the Canadian research community for more than 20 years.” Source: RevenueBase Database · checked Sep 20, 2026
22	Centre DE Recherche Saint-Louis	Indirect evidence	Québec, QC, CanadaHQ checked Sep 20, 2026	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 Sep 20, 2026
23	Scian Services INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	11 contacts →
	Indirect evidence “SCiAN Services Inc, is a contract research organization (CRO) providing clinical data management, biostatistics, medical writing, SAE management and custom database solutions to…” Source: RevenueBase Database · checked Sep 20, 2026
24	Trial Management Group INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial 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 Sep 20, 2026
25	Prime Site Research Solutions INC	Partial evidence	Edmonton, CanadaHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “Primesite Research Solutions is an Integrative Research Organization and Site Network based out of Western Canada.” Source: RevenueBase Database · checked Sep 20, 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: investigative site organizations. 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 investigative site organizations.
Partial evidence: Its own public description names part of investigative site organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name investigative site organizations. 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 108 investigative site organizations based in Canada

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Investigative site organizations based in Canada at a glance

As of Sep 20, 2026

57.3%Verified-email coverage

22.1Average contacts per company

11-50Median size (employees)

17.6%Largest-city concentration · Toronto

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 108 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 investigative site organizations, 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 “investigative site organizations”. 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 investigative site organizations), 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 investigative site organizations, 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, 1,369 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 20, 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 investigative site organizations, 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 investigative site organizations are there based in Canada?

RevenueBase identified 108 investigative site organizations 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?

Everest Clinical Research, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most investigative site organizations?

Toronto leads with 19 headquartered companies, followed by Vancouver (10) and Montreal (9).

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 1,369 verified decision-maker contacts tracked across these 108 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 20, 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.