Company lists · Data refreshed September 2026

Top 25 Operational technology security firms based in Canada

Name: Operational technology security 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 165 companies tracked

RevenueBase identified 165 operational technology security firms headquartered in Canada as of September 2026 and tracks 998 professional contacts across them, including 427 with verified work emails. Toronto is the largest hub.

This list covers operational technology security 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

165Companies

998Contacts tracked

427Verified emails

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The 25 largest operational technology security firms based in Canada

Ranked by team size

Top 25 of 165 operational technology security 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 operational technology security 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	ISA Cybersecurity	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	51-200	86 contacts →
	Indirect evidence “ISA Cybersecurity is one of Canada’s leading cybersecurity services and solutions providers.” Source: RevenueBase Database · checked Sep 29, 2026
2	ION	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 29, 2026	51-200	56 contacts →
	Indirect evidence “iON - We protect the brands you know.® (also known as iON United, or just iON) is one of Canada’s most trusted cybersecurity solution providers.” Source: RevenueBase Database · checked Sep 29, 2026
3	Streamscan Cybersecurity	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 29, 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 29, 2026
4	Innotech Engineering INC	Strong evidence	Calgary, CanadaHQ checked Sep 29, 2026	51-200	44 contacts →
	Strong evidence “InnoTech is an engineering company focused on Operational Technology (OT) spanning instrumentation, electrical and automation infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026
5	SIRIX	Strong evidence	Laval, QC, CanadaHQ checked Sep 29, 2026	11-50	36 contacts →
	Strong evidence “Sirix is a state-of-the-art security operation center that provides security dealers with expert services and cutting-edge remote live monitoring solutions to manage and protect…” Source: RevenueBase Database · checked Sep 29, 2026
6	Intellisec Solutions	Indirect evidence	Brossard, QC, CanadaHQ checked Sep 29, 2026	11-50	30 contacts →
	Indirect evidence “IntelliSec Solutions delivers comprehensive cybersecurity services designed to protect and optimize your digital infrastructure.” Source: RevenueBase Database · checked Sep 29, 2026
7	Lyrical Security	Partial evidence	Markham, ON, CanadaHQ checked Sep 29, 2026	11-50	24 contacts →
	Partial evidence “Lyrical Security is an anti-cookie-cutter, full-service cybersecurity services firm.” Source: RevenueBase Database · checked Sep 29, 2026
8	Cybersecurity Bradley & Rollins	Indirect evidence	Montréal, QC, CanadaHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “Chez Bradley & Rollins, nous avons repensé ce que les organisations sont en droit d’attendre d’un partenaire en cybersécurité.” Source: RevenueBase Database · checked Sep 29, 2026
9	Canary Trap	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 29, 2026	11-50	21 contacts →
	Partial evidence “Canary Trap is a North American offensive security firm that helps organizations validate their security before attackers do.” Source: RevenueBase Database · checked Sep 29, 2026
10	BDATA	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	21 contacts →
	Indirect evidence “For critical infrastructure companies, cyber threats are an alarming and growing challenge.” Source: RevenueBase Database · checked Sep 29, 2026
11	Armour Cybersecurity	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	20 contacts →
	Indirect evidence “Armour Cybersecurity protects organizations from the multi-faceted, ever-evolving cyber threats that put businesses at risk every day.” Source: RevenueBase Database · checked Sep 29, 2026
12	Mjolnir Security INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 29, 2026	11-50	17 contacts →
	Partial evidence “Mjolnir provides clients with a suite of highly advanced and AI/ML driven tools and services - Security Ops Center as a Service, Threat Detection and Dark web Threat Intelligence…” Source: RevenueBase Database · checked Sep 29, 2026
13	Rsolutions Corporation	Indirect evidence	Regina, SK, CanadaHQ checked Sep 29, 2026	51-200	17 contacts →
	Indirect evidence “rSolutions manages cybersecurity services for a Canadian Big 5 Bank, a Big 3 Canadian Insurer, Telcos, Biomedical research companies, national service companies and more from its…” Source: RevenueBase Database · checked Sep 29, 2026
14	Captosec Cybersecurity And IT Solutions For Business	Indirect evidence	Québec, QC, CanadaHQ checked Sep 29, 2026	11-50	17 contacts →
	Indirect evidence “CAPTOSEC, Inc.” Source: RevenueBase Database · checked Sep 29, 2026
15	Xenoncyber Dynamics INC	Indirect evidence	Kamloops, BC, CanadaHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “XenonCyber Dynamics develops cyber-informed energy systems and engineering solutions that improve how electrical infrastructure is understood, planned, and operated in mountain…” Source: RevenueBase Database · checked Sep 29, 2026
16	Heighten Security	Partial evidence	Toronto, CanadaHQ checked Sep 29, 2026	1-10	16 contacts →
	Partial evidence “Heighten Security is a leading provider of cybersecurity services for organizations across Canada.” Source: RevenueBase Database · checked Sep 29, 2026
17	Vars Corporation	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 29, 2026	11-50	16 contacts →
	Indirect evidence “VARS provides flexible cutting-edge cybersecurity solutions that are adapted to your organization’s reality.” Source: RevenueBase Database · checked Sep 29, 2026
18	Carefreeit	Indirect evidence	Waterloo, ON, CanadaHQ checked Sep 29, 2026	11-50	14 contacts →
	Indirect evidence “CarefreeIT provides advanced cybersecurity protection and IT support to Canadian businesses.” Source: RevenueBase Database · checked Sep 29, 2026
19	S01ve Cyber Solutions	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “Here to protect your digital world.” Source: RevenueBase Database · checked Sep 29, 2026
20	Amsi Networks	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 29, 2026	11-50	13 contacts →
	Indirect evidence “With over 25 years of experience, AMSi Networks is a leader in delivering advanced Cybersecurity solutions in the digital world.” Source: RevenueBase Database · checked Sep 29, 2026
21	Gardien Virtuel	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 29, 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 29, 2026
22	Hitachi Systems Security INC	Partial evidence	Blainville, QC, CanadaHQ checked Sep 29, 2026	501-1,000	10 contacts →
	Partial evidence “Hitachi Systems Security was founded with one simple mission in mind – to make the internet a safer place for all.” Source: RevenueBase Database · checked Sep 29, 2026
23	PM Scada Cyber Defense	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “PM SCADA Cyber Defense was founded in 2009 by leading cybersecurity architects.” Source: RevenueBase Database · checked Sep 29, 2026
24	Computech Canada	Indirect evidence	Edmundston, NB, CanadaHQ checked Sep 29, 2026	11-50	9 contacts →
	Indirect evidence “Computech est créée en 1994 à Edmundston au Nouveau-Brunswick (Canada).” Source: RevenueBase Database · checked Sep 29, 2026
25	Cyvault	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 29, 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 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: operational technology security 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 operational technology security firms.
Partial evidence: Its own public description names part of operational technology security firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operational technology security 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 165 operational technology security firms based in Canada

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Operational technology security firms based in Canada at a glance

As of Sep 29, 2026

42.8%Verified-email coverage

6.0Average contacts per company

11-50Median size (employees)

23.6%Largest-city concentration · Toronto

Sep 29, 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 165 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 operational technology security 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 “operational technology security 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 operational technology security 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 operational technology security 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, 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 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.

Operational technology security firms by metro

Operational technology security firms in Toronto39

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 operational technology security 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 operational technology security firms are there based in Canada?

RevenueBase identified 165 operational technology security 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?

ISA Cybersecurity, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most operational technology security firms?

Toronto leads with 39 headquartered companies, followed by Montreal (24) and Calgary (20).

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 427 verified decision-maker contacts tracked across these 165 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.