Company lists · Data refreshed September 2026

Top 25 Penetration testing companies based in Toronto, Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 94 companies tracked

RevenueBase identified 94 penetration testing companies headquartered in Toronto, Canada as of September 2026 and tracks 766 professional contacts across them, including 303 with verified work emails. Toronto is the largest hub.

This list covers penetration testing companies 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 20, 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 20, 2026 86% judged on-target in blind review

94Companies

766Contacts tracked

303Verified emails

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The 25 largest penetration testing companies based in Toronto, Canada

Ranked by team size

Top 25 of 94 penetration testing companies based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to penetration testing 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	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	239 contacts →
	Indirect evidence “Trillium Information Security Systems (TISS) is a leading global provider of cybersecurity solutions and services, established in 2005.” Source: RevenueBase Database · checked Sep 20, 2026
2	ISA Cybersecurity	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 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 20, 2026
3	Packetlabs	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	64 contacts →
	Indirect evidence “Packetlabs is CREST-accredited and SOC 2 Type II attested, demonstrating our commitment to security excellence.” Source: RevenueBase Database · checked Sep 20, 2026
4	Cyderes	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	501-1,000	37 contacts →
	Indirect 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 20, 2026
5	Elastify	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 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 Sep 20, 2026
6	Armour Cybersecurity	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 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 20, 2026
7	Intercast	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 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 Sep 20, 2026
8	Heighten Security	Indirect evidence	Toronto, CanadaHQ checked Sep 20, 2026	1-10	16 contacts →
	Indirect evidence “Heighten Security is a leading provider of cybersecurity services for organizations across Canada.” Source: RevenueBase Database · checked Sep 20, 2026
9	Cyberwall	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	16 contacts →
	Indirect evidence “Cyberwall is one of the best cybersecurity services and training provider in Toronto.” Source: RevenueBase Database · checked Sep 20, 2026
10	Kirsch Group	Indirect evidence	Toronto, CanadaHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “We protect what’s important to you.” Source: RevenueBase Database · checked Sep 20, 2026
11	Ardent Security	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “At Ardent Security, we've built our reputation on a simple principle: Exceptional credentials deliver exceptional results.” Source: RevenueBase Database · checked Sep 20, 2026
12	Stingrai	Strong evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	7 contacts →
	Strong evidence “Stingrai is CREST-accredited for penetration testing services, helps companies prevent breaches by simulating real-world attacks.” Source: RevenueBase Database · checked Sep 20, 2026
13	Advisorsden	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	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 20, 2026
14	Mand Consulting Group	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Mand Consulting Group (MCG) is a respected ISO27001-certified cybersecurity services firm, acclaimed for providing enterprise-quality services at rates accessible for startups and…” Source: RevenueBase Database · checked Sep 20, 2026
15	Velnet Consulting	Indirect evidence	Toronto, CanadaHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Empowering organizations to navigate modern cybersecurity challenges with confidence.” Source: RevenueBase Database · checked Sep 20, 2026
16	Perdition Security	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect 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 20, 2026
17	Cytelligence	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	4 contacts →
	Indirect evidence “Cytelligence is driven by our passion for providing our customers leadership and effective solutions to solve security-related concerns and creating empowering goals that support…” Source: RevenueBase Database · checked Sep 20, 2026
18	Assurance Protection Group Inc. Apgi	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Assurance Protection Group is made up of a team of professionals from diverse backgrounds that has a fresh, innovative and realistic approach to Security.” Source: RevenueBase Database · checked Sep 20, 2026
19	Hack Circuit	Indirect evidence	Toronto, CanadaHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “Hack Circuit \| Global Security Assessments & Strategic Investment Labs Bridging the tech hubs of Toronto and Hong Kong, Hack Circuit is a premier consultancy dedicated to digital…” Source: RevenueBase Database · checked Sep 20, 2026
20	Security Compass Advisory	Strong evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	51-200	3 contacts →
	Strong 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 20, 2026
21	Allo Technologies	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “We specialize in information security program design, implementation, and managed cybersecurity services.” Source: RevenueBase Database · checked Sep 20, 2026
22	Kernel Advisory	Indirect evidence	Toronto, CanadaHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “Kernel is trusted by companies and investors around the world with complex cybersecurity needs.” Source: RevenueBase Database · checked Sep 20, 2026
23	Bitsproof	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	11-50	3 contacts →
	Indirect evidence “We are a cybersecurity company that provides solutions and services to help organizations improve their security posture.” Source: RevenueBase Database · checked Sep 20, 2026
24	BM Network Solutions	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “We Protect Your Business!” Source: RevenueBase Database · checked Sep 20, 2026
25	Defense In Depth	Indirect evidence	Toronto, CanadaHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence “Looking to expand your IT services to include cybersecurity?” Source: RevenueBase Database · checked Sep 20, 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: penetration testing 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 penetration testing companies.
Partial evidence: Its own public description names part of penetration testing companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name penetration testing 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 94 penetration testing companies based in Toronto, Canada

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Penetration testing companies based in Toronto, Canada at a glance

As of Sep 20, 2026

39.6%Verified-email coverage

8.1Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Toronto

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 94 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 penetration testing 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 “penetration testing 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 penetration testing 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 penetration testing 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, 303 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 20, 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.

Penetration testing companies by metro in Canada

Penetration testing companies in Toronto94
Penetration testing companies in Montreal47
Penetration testing companies in Ottawa45
Penetration testing companies in Calgary30
Penetration testing companies in Vancouver27

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 penetration testing companies, 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 penetration testing companies are there based in Toronto, Canada?

RevenueBase identified 94 penetration testing companies 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 penetration testing companies?

Toronto leads with 94 headquartered companies, followed by Montreal (47) and Ottawa (45).

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 303 verified decision-maker contacts tracked across these 94 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 20, 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.