Company lists · Data refreshed October 2026

Top 25 Cybersecurity companies based in Toronto, Canada

Name: Cybersecurity companies based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 1, 2026 245 companies tracked

Our directory lists 245 cybersecurity companies based in Toronto, Canada, with 1,668 professional contacts and 576 email addresses. The list was last updated in October 2026. Across Canada, Toronto is the largest hub for this category.

Cybersecurity companies provide products and services that protect systems, networks, applications, devices, and data from unauthorized access, disruption, or misuse. This list covers companies that provide cybersecurity products, services, consulting, assessments, monitoring, incident response, or related protection for digital systems and data. Ranked by team size, largest first. Data current as of October 1, 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 Oct 1, 2026 86% judged on-target in blind review

245Companies

1,668Contacts tracked

576Verified emails

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The 25 largest cybersecurity companies based in Toronto, Canada

Ranked by team size

Top 25 of 245 cybersecurity companies based in Toronto, Canada, ranked by team size, largest first. Data refreshed Oct 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity companies: 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	Trillium Information Security Systems	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	239 contacts →
	Strong evidence “Trillium Information Security Systems (TISS) is a leading global provider of cybersecurity solutions and services, established in 2005.” Source: RevenueBase Database · checked Oct 1, 2026
2	ISA Cybersecurity	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	86 contacts →
	Strong evidence “ISA Cybersecurity is one of Canada’s leading cybersecurity services and solutions providers.” Source: RevenueBase Database · checked Oct 1, 2026
3	Boxx Insurance INC	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	54 contacts →
	Indirect evidence “BOXX Insurance helps businesses and individuals insure and defend against cyber and technology risks, harnessing the power of ALL IN ONE Cyber and Technology Insurance and…” Source: RevenueBase Database · checked Oct 1, 2026
4	Cybersecurity Umbrella	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	54 contacts →
	Strong evidence “Cybersecurity Umbrella Corp delivers AI-driven cybersecurity solutions tailored for fintech, enterprises, governments, educators, and digital platforms.” Source: RevenueBase Database · checked Oct 1, 2026
5	Cruciallogics	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	48 contacts →
	Indirect evidence “We help organizations secure and manage their IT environments using the Microsoft-native technologies they already own.” Source: RevenueBase Database · checked Oct 1, 2026
6	Cyderes	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	501-1,000	37 contacts →
	Strong evidence “Cyderes is a global cybersecurity powerhouse offering comprehensive solutions around managed security, identity and access management, and professional services.” Source: RevenueBase Database · checked Oct 1, 2026
7	Iamconcepts	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	36 contacts →
	Indirect evidence “A Proudly Canadian Company!” Source: RevenueBase Database · checked Oct 1, 2026
8	Elastify	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	34 contacts →
	Indirect evidence “As your business grows, keeping up with compliance requirements and strengthening your security posture can be a real challenge.” Source: RevenueBase Database · checked Oct 1, 2026
9	Hudson Technology	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	31 contacts →
	Strong evidence “Hudson Technology is a Managed IT Services and Cybersecurity provider (MSP/MSSP) helping businesses across Canada and the U.S.” Source: RevenueBase Database · checked Oct 1, 2026
10	Fusion Computing Limited	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	31 contacts →
	Strong evidence “Fusion Computing is a Canadian-owned managed IT and cybersecurity firm serving businesses across Toronto, Hamilton, the GTA, and Metro Vancouver since 2012.” Source: RevenueBase Database · checked Oct 1, 2026
11	BDATA	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	21 contacts →
	Indirect evidence “For critical infrastructure companies, cyber threats are an alarming and growing challenge.” Source: RevenueBase Database · checked Oct 1, 2026
12	Armour Cybersecurity	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	20 contacts →
	Strong evidence “Armour Cybersecurity protects organizations from the multi-faceted, ever-evolving cyber threats that put businesses at risk every day.” Source: RevenueBase Database · checked Oct 1, 2026
13	Intercast	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	20 contacts →
	Indirect evidence “Intercast's mission is to be a strategic resource to our clients in Risk Reduction.” Source: RevenueBase Database · checked Oct 1, 2026
14	Datametrex AI LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Oct 1, 2026
15	Scriptics	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	201-500	20 contacts →
	Strong evidence “At Scriptics Technologies, we have extensive experience working with a variety of technologies, including Salesforce, BlackBerry cybersecurity, Magnet Forensic, AWS, Azure, and…” Source: RevenueBase Database · checked Oct 1, 2026
16	Fulcrum IT Partners	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	501-1,000	18 contacts →
	Indirect evidence “Fulcrum IT Partners is the parent company of an expanding portfolio of established and successful IT solution companies around the world with proven expertise in cyber security…” Source: RevenueBase Database · checked Oct 1, 2026
17	Optimus Tech Solutions INC	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	18 contacts →
	Strong evidence “Optimus Tech Solutions is a Toronto-based Managed IT and Cybersecurity Services provider helping organizations operate securely, efficiently, and with confidence.” Source: RevenueBase Database · checked Oct 1, 2026
18	Mjolnir Security INC	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	17 contacts →
	Indirect 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 Oct 1, 2026
19	System Architects INC	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	17 contacts →
	Indirect evidence “System Architects is a leading IT company based in Toronto, serving clients across Canada.” Source: RevenueBase Database · checked Oct 1, 2026
20	Heighten Security	Strong evidence	Toronto, CanadaHQ checked Oct 1, 2026	1-10	16 contacts →
	Strong evidence “Heighten Security is a leading provider of cybersecurity services for organizations across Canada.” Source: RevenueBase Database · checked Oct 1, 2026
21	Cyberwall	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	16 contacts →
	Strong evidence “Cyberwall is one of the best cybersecurity services and training provider in Toronto.” Source: RevenueBase Database · checked Oct 1, 2026
22	Complysec360 By Engaiz	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	15 contacts →
	Indirect evidence “With digital transformation on the rise, global cybercrime damages are predicted to hit $10.5 Trillion by 2025.” Source: RevenueBase Database · checked Oct 1, 2026
23	National Cybersecurity Consortium Consortium National Pour LA Cybersécurité	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	1-10	15 contacts →
	Strong evidence “The National Cybersecurity Consortium (NCC) is a pan-Canadian network that supports the advancement of the Canadian cybersecurity ecosystem through research and development…” Source: RevenueBase Database · checked Oct 1, 2026
24	Cryptomill Cybersecurity Solutions	Strong evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	11-50	14 contacts →
	Strong evidence “CryptoMill Cybersecurity Solutions provides advanced, innovative data security solutions for enterprises, professionals and individuals.” Source: RevenueBase Database · checked Oct 1, 2026
25	Athena Cloud Limited	Indirect evidence	Toronto, ON, CanadaHQ checked Oct 1, 2026	51-200	14 contacts →
	Indirect evidence “Athena Cloud is the premier provider of trusted cloud services.” Source: RevenueBase Database · checked Oct 1, 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 companies. 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 companies.
Partial evidence: Its own public description names part of cybersecurity companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity companies. 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 245 cybersecurity companies based in Toronto, Canada

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Cybersecurity companies based in Toronto, Canada at a glance

As of Oct 1, 2026

34.5%Verified-email coverage

6.8Average contacts per company

1-10Median size (employees)

Oct 1, 2026Page data refreshed

Companies by employee count

1-10

138

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Canada list rather than for Toronto, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 245 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 companies, 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 Toronto, Canada whose own description of what they do matches “cybersecurity companies”. 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 companies), 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 companies, and records with no verified work email. Companies headquartered outside Toronto 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, 576 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 October 1, 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 companies by metro in Canada

Frequently asked

How many cybersecurity companies are in the directory?

The directory lists 245 cybersecurity companies based in Toronto, Canada.

Which city in Canada has the most cybersecurity companies?

Toronto leads Canada with 245 headquartered companies, followed by Montreal (119) and Ottawa (90).

How many contacts are available for cybersecurity companies?

The directory includes 1,668 professional contacts and 576 email addresses for the listed cybersecurity companies.

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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.