Company lists · Data refreshed September 2026

Top 25 Network security consultants based in Toronto, Canada

RevenueBase identified 133 network security consultants headquartered in Toronto, Canada as of September 2026 and tracks 866 professional contacts across them, including 313 with verified work emails. Across Canada, Toronto is the largest hub for this category.

This list covers network security consultants 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.

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
133Companies
866Contacts tracked
313Verified emails
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The 25 largest network security consultants based in Toronto, Canada

Ranked by team size
Top 25 of 133 network security consultants based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to network security consultants: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 202651-200239 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, 2026
2Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202651-20086 contacts →

Indirect evidence

“ISA Cybersecurity is one of Canada’s leading cybersecurity services and solutions providers.”

Source: RevenueBase Database · checked Sep 14, 2026
3Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202651-20048 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, 2026
4Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 2026501-1,00037 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, 2026
5Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-5034 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, 2026
6Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-5023 contacts →

Indirect evidence

“Sun IT Solutions - Canada's premier IT consulting firm offering top-notch services nationwide, including Managed IT Services, IT Support Services, IT Outsourcing Services, Tech…”

Source: RevenueBase Database · checked Sep 14, 2026
7Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-5020 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 14, 2026
8Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-5020 contacts →

Indirect evidence

“Intercast's mission is to be a strategic resource to our clients in Risk Reduction.”

Source: RevenueBase Database · checked Sep 14, 2026
9Partial evidenceToronto, CanadaHQ checked Sep 14, 20261-1016 contacts →

Partial evidence

“Heighten Security is a leading provider of cybersecurity services for organizations across Canada.”

Source: RevenueBase Database · checked Sep 14, 2026
10Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

“Cyberwall is one of the best cybersecurity services and training provider in Toronto.”

Source: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceToronto, CanadaHQ checked Sep 14, 20261-109 contacts →

Indirect evidence

“We protect what’s important to you.”

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 20261-108 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, 2026
13Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 20261-108 contacts →

Indirect evidence

“Free yourself with effective, intelligent technology solutions customized to your needs.”

Source: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-506 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, 2026
15Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-506 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, 2026
16Indirect evidenceToronto, CanadaHQ checked Sep 14, 202611-505 contacts →

Indirect evidence

“Empowering organizations to navigate modern cybersecurity challenges with confidence.”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“At Perdition Security, we specialize in crafting bespoke cybersecurity solutions for a diverse clientele, with a particular emphasis on supporting non-profit organizations.”

Source: RevenueBase Database · checked Sep 14, 2026
18Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 20261-104 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, 2026
19Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 20261-104 contacts →

Indirect 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, 2026
20Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 202651-2003 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, 2026
21Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-503 contacts →

Partial evidence

“We specialize in information security program design, implementation, and managed cybersecurity services.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceToronto, CanadaHQ checked Sep 14, 202611-503 contacts →

Indirect evidence

“Kernel is trusted by companies and investors around the world with complex cybersecurity needs.”

Source: RevenueBase Database · checked Sep 14, 2026
23Indirect evidenceToronto, CanadaHQ checked Sep 14, 202611-503 contacts →

Indirect 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, 2026
24Partial evidenceToronto, ON, CanadaHQ checked Sep 14, 202611-503 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, 2026
25Indirect evidenceToronto, ON, CanadaHQ checked Sep 14, 20261-103 contacts →

Indirect 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, 2026

Showing 25 of 133 network security consultants based in Toronto, Canada

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Network security consultants based in Toronto, Canada at a glance

As of Sep 14, 2026
36.1%Verified-email coverage
6.5Average contacts per company
1-10Median size (employees)
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
79
11-50
44
51-200
9
501-1,000
1

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 133 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 network security consultants, 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 “network security consultants”. 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 network security consultants), 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 network security consultants, 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, 313 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.

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 network security consultants, 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 network security consultants are there based in Toronto, Canada?

RevenueBase identified 133 network security consultants 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 in Canada has the most network security consultants?

Toronto leads Canada with 133 headquartered companies, followed by Montreal (66) and Calgary (56).

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 313 verified decision-maker contacts tracked across these 133 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.