Company lists · Data refreshed September 2026

Top 25 Network security service providers based in Toronto, Canada

Name: Network security service providers based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 98 companies tracked

RevenueBase identified 98 network security service providers headquartered in Toronto, Canada as of September 2026 and tracks 708 professional contacts across them, including 271 with verified work emails. Toronto is the largest hub.

This list covers network security service providers 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

98Companies

708Contacts tracked

271Verified emails

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The 25 largest network security service providers based in Toronto, Canada

Ranked by team size

Top 25 of 98 network security service providers 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 service providers: 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	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	51-200	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, 2026
2	ISA Cybersecurity	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 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 14, 2026
3	Cruciallogics	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 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 Sep 14, 2026
4	Cyderes	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	501-1,000	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, 2026
5	Armour Cybersecurity	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 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 14, 2026
6	Heighten Security	Partial evidence	Toronto, CanadaHQ checked Sep 14, 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 14, 2026
7	Cyberwall	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 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 14, 2026
8	Sourcetekit	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	8 contacts →
	Partial evidence “SourcetekIT is focused on providing high-quality Professional and Managed Security Services to businesses across North America.” Source: RevenueBase Database · checked Sep 14, 2026
9	Ardent Security	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	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, 2026
10	Stingrai	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	7 contacts →
	Indirect evidence “Stingrai is CREST-accredited for penetration testing services, helps companies prevent breaches by simulating real-world attacks.” Source: RevenueBase Database · checked Sep 14, 2026
11	Advisorsden	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 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 14, 2026
12	Thinklink	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	6 contacts →
	Indirect evidence “ThinkLink secures enterprises against cyber risks by helping them reduce & manage their attack surface.” Source: RevenueBase Database · checked Sep 14, 2026
13	Velnet Consulting	Indirect evidence	Toronto, CanadaHQ checked Sep 14, 2026	11-50	5 contacts →
	Indirect evidence “Empowering organizations to navigate modern cybersecurity challenges with confidence.” Source: RevenueBase Database · checked Sep 14, 2026
14	Pexo IT Solution LTD	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	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, 2026
15	Security Compass Advisory	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	51-200	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, 2026
16	Allo Technologies	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	3 contacts →
	Partial evidence “We specialize in information security program design, implementation, and managed cybersecurity services.” Source: RevenueBase Database · checked Sep 14, 2026
17	Bitsproof	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	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, 2026
18	Malto Cyber	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	3 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
19	BM Network Solutions	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “We Protect Your Business!” Source: RevenueBase Database · checked Sep 14, 2026
20	Altoverra	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	11-50	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, 2026
21	Secur-It Data Solutions	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	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, 2026
22	Defense In Depth	Indirect evidence	Toronto, CanadaHQ checked Sep 14, 2026	1-10	2 contacts →
	Indirect evidence “Looking to expand your IT services to include cybersecurity?” Source: RevenueBase Database · checked Sep 14, 2026
23	Informa Solutions Canada	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	2 contacts →
	Indirect evidence “A leading provider of comprehensive Information Technology and Cybersecurity solutions to protect organizations from evolving digital threats with a passion for defending the…” Source: RevenueBase Database · checked Sep 14, 2026
24	Mactelecom Networks	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “Your network is the core of your business and requires having minimal amounts of outages to prevent loss of time and money.” Source: RevenueBase Database · checked Sep 14, 2026
25	Interlan Consulting INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 14, 2026	1-10	2 contacts →
	Partial evidence “InterLAN completed hundreds of cybersecurity and network infrastructure engagements with well over one hundred organizations in Canada and the US.” Source: RevenueBase Database · checked Sep 14, 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: network security service providers. 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 network security service providers.
Partial evidence: Its own public description names part of network security service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name network security service providers. 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 98 network security service providers based in Toronto, Canada

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Network security service providers based in Toronto, Canada at a glance

As of Sep 14, 2026

38.3%Verified-email coverage

7.2Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Toronto

Sep 14, 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 98 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 service providers, 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 service providers”. 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 service providers), 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 service providers, 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, 271 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.

Network security service providers by metro in Canada

Network security service providers in Toronto98
Network security service providers in Montreal55
Network security service providers in Calgary41
Network security service providers in Ottawa31
Network security service providers in Vancouver31

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 service providers, 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 service providers are there based in Toronto, Canada?

RevenueBase identified 98 network security service providers 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 network security service providers?

Toronto leads with 98 headquartered companies, followed by Montreal (55) and Calgary (41).

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 271 verified decision-maker contacts tracked across these 98 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.