Company lists · Data refreshed September 2026

Top 24 IT managed service providers based in Montreal, Canada

Name: IT managed service providers based in Montreal, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 55 companies tracked

RevenueBase identified 55 IT managed service providers headquartered in Montreal, Canada as of September 2026 and tracks 1,056 professional contacts across them, including 373 with verified work emails. Toronto is the largest hub.

This list covers IT managed service providers headquartered in Montreal, 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

55Companies

1,056Contacts tracked

373Verified emails

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The 24 largest IT managed service providers based in Montreal, Canada

Ranked by team size

Top 24 of 55 IT managed service providers based in Montreal, Canada, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT managed service providers: 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.
#	Company	Headquarters	Employees	Contacts
1	MSP CorpIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	501-1,000	107
	“VOTRE PARTENAIRE DE CONFIANCE POUR LES SOLUTIONS TECHNOLOGIQUES D’ENTREPRISE La transformation numérique est bien plus qu’un métier pour nous, c’est un engagement.” Source: company website · checked Sep 4, 2026
2	S3 Technologies INCIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	51-200	102
	“Founded in 2003, S3 Technologies Inc.” Source: company website · checked Sep 4, 2026
3	CDMSStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	51
	“CDMS Inc No matter what your IT environment is, Managed IT Solutions are an important tool for any company concerned with its daily challenges.” Source: company website · checked Sep 4, 2026
4	QuesysStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	32
	“Quesys is a Montreal IT company delivering managed services and cybersecurity for over 20 years.” Source: company website · checked Sep 4, 2026
5	ASN INCPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	29
	“ASN - Your Trusted IT Solutions Partner At ASN, our mission is to empower businesses with innovative, efficient, and reliable IT solutions.” Source: company website · checked Sep 4, 2026
6	Nexxo TechnologiesIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	24
	“À Montréal, Nexxo accompagne les PME du Québec avec des services TI gérés, des solutions de cybersécurité et des stratégies Cloud adaptées à leur croissance.” Source: company website · checked Sep 4, 2026
7	NetsatoriIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	20
	“NETsatori, qui comprend deux divisions spécialisées dans les services professionnels et les services gérés, déploie des réseaux plus solides et plus sûrs dans des environnements…” Source: company website · checked Sep 4, 2026
8	Fusion Cyber GroupStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	19
	“Founded in 1985 and headquartered in Montreal, Fusion Cyber Group is a Canadian Managed Security Service Provider (MSSP), Managed IT Services Provider (MSP), and value-added…” Source: company website · checked Sep 4, 2026
9	TOP Tech Solutions, INCPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	15
	“Top Tech Solution offers full turn-key network services including design, implementation, project management; admin training and help desk support.” Source: company website · checked Sep 4, 2026
10	Service Informatique Montreal 24h Softflow Managed IT Services IT Support Cybersecurity Depuis 1987Partial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	13
	“Since 1987 – SoftFlow Canada – Network Cabling Montreal, IT Services Montreal & Cybersecurity Network Cabling Montreal – Structured cabling and fiber optic for offices and data…” Source: company website · checked Sep 4, 2026
11	ResitekStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	12
	“Founded in 2003, RESITEK has been a trusted Managed Service Provider (MSP) dedicated to delivering comprehensive IT solutions for SMEs.” Source: company website · checked Sep 4, 2026
12	ExosourceStrong evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	11
	“ExoSource provides an all-in-one outsourced IT departement composed of technical support, system administration and IT management services.” Source: company website · checked Sep 4, 2026
13	ClickcontrolPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	8
	“We provide a comprehensive suite of services from network security and data protection to regulatory compliance and proactive threat management.” Source: company website · checked Sep 4, 2026
14	CompumatikPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	8
	“What would you do if you didn't have to worry about IT anymore?” Source: company website · checked Sep 4, 2026
15	CD Info INCIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	8
	“Implantée depuis 1994 dans la région montréalaise, CD Info Inc.” Source: company website · checked Sep 4, 2026
16	ACE Technology INCPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	7
	“Established in 1989, Ace Technology has built a solid expertise in IT infrastructure and cybersecurity solutions for the SMB market place.” Source: company website · checked Sep 4, 2026
17	Tsic Solutions INCIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	6
	“Chez TSIC Solutions, nous aidons les PME du Grand Montréal à transformer leur gestion des TI grâce à des solutions technologiques avancées, sécurisées et adaptées à leurs besoins…” Source: company website · checked Sep 4, 2026
18	Bemotion TechnologieIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	6
	“Fondée et établie à Montréal depuis 1991, notre entreprise de services TI gérés a débuté avec des modems US Robotics et l’Internet en accès « dial-up ».” Source: company website · checked Sep 4, 2026
19	Digital Days INCPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	5
	“Digital Days is a people-centric IT firm providing personalized service to customers across Canada, with offices in Montreal, Quebec and Toronto, Ontario.” Source: company website · checked Sep 4, 2026
20	Aiki SecurePartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	5
	“AIKI Secures your IT partner for SMEs in Quebec for 30 years.” Source: company website · checked Sep 4, 2026
21	IdahysPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	5
	“Empowering Businesses with Tailored and Cutting-Edge Cybersecurity and IT solutions At Idahys, we believe in delivering a unique approach to every business, carefully considering…” Source: company website · checked Sep 4, 2026
22	InnucloudPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	11-50	5
	“InnuCloud stands as a beacon in the realm of cybersecurity, cloud solutions, and IT modernization, providing unparalleled services designed to navigate the complexities of the…” Source: company website · checked Sep 4, 2026
23	Ocius INCIndirect evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	4
	“Ocius est une société experte en technologies de l’information.” Source: company website · checked Sep 4, 2026
24	IngrixPartial evidence	Montreal, QC, CanadaHQ checked Sep 4, 2026	1-10	4
	“We are a young and dynamic group of IT specialists focused on one single goal: To provide the best quality of IT services for small businesses in major cities in Canada, at the…” Source: company website · checked Sep 4, 2026

Showing 24 of 55 IT managed service providers based in Montreal, Canada

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IT managed service providers based in Montreal, Canada at a glance

As of Sep 4, 2026

1-10Median size (employees)

TorontoLargest hub · 156 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

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 Montreal, over 55 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 IT managed service providers, 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 Montreal, Canada whose own description of what they do matches “IT managed service providers”. 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 IT managed service providers, and records with no verified work email. Companies headquartered outside Montreal 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, 373 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.

IT managed service providers by metro in Canada

IT managed service providers in Toronto156
IT managed service providers in Calgary86
IT managed service providers in Montreal55
IT managed service providers in Vancouver54
IT managed service providers in Ottawa48
IT managed service providers in Mississauga47
IT managed service providers in Edmonton45
IT managed service providers in Markham25

Frequently asked

How many IT managed service providers are there based in Montreal, Canada?

RevenueBase identified 55 IT managed service providers headquartered in Montreal, 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?

MSP Corp, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most IT managed service providers?

Toronto leads with 156 headquartered companies, followed by Calgary (86) and Montreal (55).

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 373 verified decision-maker contacts tracked across these 55 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.

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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.