Company lists · Data refreshed September 2026

Top 25 Cybersecurity consulting service providers based in Montreal, Canada

Name: Cybersecurity consulting 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 14, 2026 124 companies tracked

RevenueBase identified 124 cybersecurity consulting service providers headquartered in Montreal, Canada as of September 2026 and tracks 1,017 professional contacts across them, including 478 with verified work emails. Toronto is the largest hub.

This list covers cybersecurity consulting 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 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 14, 2026 86% judged on-target in blind review

124Companies

1,017Contacts tracked

478Verified emails

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The 25 largest cybersecurity consulting service providers based in Montreal, Canada

Ranked by team size

Top 25 of 124 cybersecurity consulting service providers based in Montreal, Canada, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity consulting service providers: 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	ESI Technologies	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	201-500	196 contacts →
	Indirect evidence “Since 1994, ESI’s focus has always been data management and protection.” Source: RevenueBase Database · checked Sep 14, 2026
2	Secureops	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	51-200	106 contacts →
	Indirect evidence “SecureOps is a global managed security services provider (MSSP) with 25 years of experience strengthening the security maturity and resilience of enterprises and commercial…” Source: RevenueBase Database · checked Sep 14, 2026
3	Streamscan Cybersecurity	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	46 contacts →
	Indirect evidence “Since 2011, StreamScan has been committed to protecting critical businesses especially in the defense, aerospace, and critical infrastructure sectors from cyberattacks.” Source: RevenueBase Database · checked Sep 14, 2026
4	Quesys	Partial evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	33 contacts →
	Partial evidence “Quesys is a Montreal IT company delivering managed services and cybersecurity for over 20 years.” Source: RevenueBase Database · checked Sep 14, 2026
5	Nexxo Technologies	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	25 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 14, 2026
6	Fusion Cyber Group	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	19 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 14, 2026
7	Vars Corporation	Partial evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	16 contacts →
	Partial evidence “VARS provides flexible cutting-edge cybersecurity solutions that are adapted to your organization’s reality.” Source: RevenueBase Database · checked Sep 14, 2026
8	Assurance IT	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	14 contacts →
	Indirect evidence “Teaming up with the best cyber security providers to bring you the best protection.” Source: RevenueBase Database · checked Sep 14, 2026
9	Optisigma INC	Strong evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	14 contacts →
	Strong evidence “Optisigma is a consulting firm dedicated to driving digital transformation, cybersecurity, and technology innovation.” Source: RevenueBase Database · checked Sep 14, 2026
10	Service Informatique Montreal 24h Softflow Managed IT Services IT Support Cybersecurity Depuis 1987	Partial evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	13 contacts →
	Partial evidence “Since 1987 – SoftFlow Canada – Network Cabling Montreal, IT Services Montreal & Cybersecurity Network Cabling Montreal – Structured cabling and fiber optic for offices and data…” Source: RevenueBase Database · checked Sep 14, 2026
11	Gardien Virtuel	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	201-500	11 contacts →
	Indirect evidence “Un savoir-faire en sécurité inégalé, Guidé par la confiance Gardien Virtuel comprend le cheminement vers une transformation numérique sécurisée.” Source: RevenueBase Database · checked Sep 14, 2026
12	Data Next Step	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	11 contacts →
	Indirect evidence “We are helping businesses scale securely through tailored services.” Source: RevenueBase Database · checked Sep 14, 2026
13	Cyvault	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	9 contacts →
	Indirect evidence “CyVault™ has emerged as a global, cyber defense leader offering the most advanced comprehensive protection for companies and organizations of any industry and size.” Source: RevenueBase Database · checked Sep 14, 2026
14	Clickcontrol	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “We provide a comprehensive suite of services from network security and data protection to regulatory compliance and proactive threat management.” Source: RevenueBase Database · checked Sep 14, 2026
15	ORA Consultants	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	8 contacts →
	Indirect evidence “ORA is the go-to security company that has already helped Canadian and American companies enhance their security posture to avoid risks of advanced persistent threats.” Source: RevenueBase Database · checked Sep 14, 2026
16	CD Info INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	1-10	8 contacts →
	Indirect evidence “Implantée depuis 1994 dans la région montréalaise, CD Info Inc.” Source: RevenueBase Database · checked Sep 14, 2026
17	Secur01	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	1-10	8 contacts →
	Indirect evidence “Fondée en 2014, Secur01 s'est imposée comme un leader québécois de la cybersécurité.” Source: RevenueBase Database · checked Sep 14, 2026
18	Securis	Partial evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	8 contacts →
	Partial evidence “Securis is a boutique risk, compliance, privacy and cybersecurity services firm dedicated to helping organizations meet their cyber risk and compliance objectives.” Source: RevenueBase Database · checked Sep 14, 2026
19	Mirades Security	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	1-10	7 contacts →
	Indirect evidence “Mirades Security is a partner of choice for corporations in Canada and around the world.” Source: RevenueBase Database · checked Sep 14, 2026
20	ACE Technology INC	Partial evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	1-10	7 contacts →
	Partial evidence “Established in 1989, Ace Technology has built a solid expertise in IT infrastructure and cybersecurity solutions for the SMB market place.” Source: RevenueBase Database · checked Sep 14, 2026
21	Tsic Solutions INC	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	1-10	6 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 14, 2026
22	Bemotion Technologie	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	1-10	6 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 14, 2026
23	DT Consulting Group	Partial evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	1-10	6 contacts →
	Partial evidence “DT Consulting delivers transformative technology solutions tailored to the unique needs of modern enterprises.” Source: RevenueBase Database · checked Sep 14, 2026
24	Innucloud	Partial evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	6 contacts →
	Partial evidence “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: RevenueBase Database · checked Sep 14, 2026
25	Aiki Secure	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 14, 2026	11-50	5 contacts →
	Indirect evidence “AIKI Secures your IT partner for SMEs in Quebec for 30 years.” Source: RevenueBase Database · checked Sep 14, 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: cybersecurity consulting service providers. 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 cybersecurity consulting service providers.
Partial evidence: Its own public description names part of cybersecurity consulting service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity consulting service providers. 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 124 cybersecurity consulting service providers based in Montreal, Canada

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Cybersecurity consulting service providers based in Montreal, Canada at a glance

As of Sep 14, 2026

47.0%Verified-email coverage

8.2Average contacts per company

1-10Median size (employees)

217.7%Largest-city concentration · Toronto

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole Canada list rather than for Montreal, so it is reported there. Company counts and contact totals on this page are exact for Montreal, over 124 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 cybersecurity consulting service providers, 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 Montreal, Canada whose own description of what they do matches “cybersecurity consulting service providers”. 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 cybersecurity consulting service providers), 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 cybersecurity consulting 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 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, 478 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 14, 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.

Cybersecurity consulting service providers by metro in Canada

Cybersecurity consulting service providers in Toronto270
Cybersecurity consulting service providers in Montreal124
Cybersecurity consulting service providers in Ottawa97
Cybersecurity consulting service providers in Calgary96
Cybersecurity consulting service providers in Vancouver75
Cybersecurity consulting service providers in Mississauga47
Cybersecurity consulting service providers in Edmonton35
Cybersecurity consulting service providers in Quebec26

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 cybersecurity consulting service providers, 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 cybersecurity consulting service providers are there based in Montreal, Canada?

RevenueBase identified 124 cybersecurity consulting 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?

ESI Technologies, headquartered in Montreal, tops this list with the largest team on record.

Which city has the most cybersecurity consulting service providers?

Toronto leads with 270 headquartered companies, followed by Montreal (124) and Ottawa (97).

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 478 verified decision-maker contacts tracked across these 124 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 14, 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.