Company lists · Data refreshed September 2026
Top 25 Cyber security specialists based in Toronto, Canada
RevenueBase identified 111 cyber security specialists headquartered in Toronto, Canada as of September 2026 and tracks 819 professional contacts across them, including 314 with verified work emails. Toronto is the largest hub.
This list covers cyber security specialists headquartered in Toronto, 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.
The 25 largest cyber security specialists based in Toronto, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 239 contacts → | ||||
Partial evidence “Trillium Information Security Systems (TISS) is a leading global provider of cybersecurity solutions and services, established in 2005.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 86 contacts → | ||||
Indirect evidence “ISA Cybersecurity is one of Canada’s leading cybersecurity services and solutions providers.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 43 contacts → | ||||
Indirect evidence “As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 37 contacts → | ||||
Partial evidence “Cyderes is a global cybersecurity powerhouse offering comprehensive solutions around managed security, identity and access management, and professional services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 34 contacts → | ||||
Partial evidence “As your business grows, keeping up with compliance requirements and strengthening your security posture can be a real challenge.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 20 contacts → | ||||
Partial 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 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 20 contacts → | ||||
Indirect evidence “Intercast's mission is to be a strategic resource to our clients in Risk Reduction.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 16 contacts → | ||||
Partial evidence “Heighten Security is a leading provider of cybersecurity services for organizations across Canada.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 9 contacts → | ||||
Indirect evidence “We protect what’s important to you.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 8 contacts → | ||||
Partial evidence “At Ardent Security, we've built our reputation on a simple principle: Exceptional credentials deliver exceptional results.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 6 contacts → | ||||
Indirect evidence “Your Partner in Cybersecurity Excellence At Advisorsden, we understand that the digital landscape is evolving rapidly, and with it, the complexity and sophistication of…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 6 contacts → | ||||
Indirect evidence “CyberSteward™ is a global, market-leading Cybersecurity Advisory firm, headquartered in Toronto, Ontario, Canada, with technical expertise in cybersecurity breaches and…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Indirect evidence “Empowering organizations to navigate modern cybersecurity challenges with confidence.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Indirect evidence “At Pexo, we deliver expert-managed IT services and cutting-edge cybersecurity tailored to the needs of growing businesses.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Partial evidence “Africa CyberSec is dedicated to equipping organizations and individuals with the knowledge and skills necessary to protect their digital assets and mitigate cyber threats.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 3 contacts → | ||||
Partial evidence “Security Compass Advisory provides critical consulting and advisory services to Fortune 500 companies worldwide, from enterprise penetration testing to cloud security, third-party…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 3 contacts → | ||||
Partial evidence “We specialize in information security program design, implementation, and managed cybersecurity services.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 3 contacts → | ||||
Indirect evidence “Kernel is trusted by companies and investors around the world with complex cybersecurity needs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Partial evidence “S.E.A Protection Services is an elite advisory firm integrating cyber intelligence, legal precision, and behavioral disciplines.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Partial evidence “We are a cybersecurity company that provides solutions and services to help organizations improve their security posture.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 3 contacts → | ||||
Partial evidence “MALTO Cyber is a cybersecurity company dedicated to helping organizations protect their critical information and information systems from evolving cyber threats.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 3 contacts → | ||||
Indirect evidence “We Protect Your Business!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Partial evidence “Altoverra is an IT Security company assisting small and medium sized organizations with their Cybersecurity needs.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 2 contacts → | ||||
Indirect evidence “Founded in 2023 by two seasoned industry leaders with over 40 years of global IT and cybersecurity expertise, Secur-IT Data Solutions was built to tackle the toughest digital…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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: cyber security specialists. 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 cyber security specialists.
- Partial evidence
- Its own public description names part of cyber security specialists, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name cyber security specialists. 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 111 cyber security specialists based in Toronto, Canada
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Cyber security specialists based in Toronto, Canada at a glance
As of Sep 14, 2026Companies by employee count
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 111 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 cyber security specialists, 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 “cyber security specialists”. 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 cyber security specialists), 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 cyber security specialists, 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, 314 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.
Cyber security specialists by metro in Canada
- Cyber security specialists in Toronto111
- Cyber security specialists in Montreal62
- Cyber security specialists in Calgary40
- Cyber security specialists in Ottawa37
- Cyber security specialists in Vancouver29
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 cyber security specialists, 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 cyber security specialists are there based in Toronto, Canada?
RevenueBase identified 111 cyber security specialists headquartered in Toronto, 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?
Trillium Information Security Systems, headquartered in Toronto, tops this list with the largest team on record.
Which city has the most cyber security specialists?
Toronto leads with 111 headquartered companies, followed by Montreal (62) and Calgary (40).
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 314 verified decision-maker contacts tracked across these 111 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.
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