Company lists · Data refreshed September 2026

Top 23 IT security consulting firms based in Toronto, Canada

Name: IT security consulting firms based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 4, 2026 213 companies tracked

RevenueBase identified 213 IT security consulting firms headquartered in Toronto, Canada as of September 2026 and tracks 1,509 professional contacts across them, including 662 with verified work emails. Toronto is the largest hub.

This list covers IT security consulting firms 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review

213Companies

1,509Contacts tracked

662Verified emails

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The 23 largest IT security consulting firms based in Toronto, Canada

Ranked by team size

Top 23 of 213 IT security consulting firms based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names IT security consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Reliance North AmericaIndirect evidence	Toronto, CanadaHQ checked Sep 4, 2026	51-200	44
	“As our name suggests, our customers rely on us in providing suitable technology inputs to support their business goals.” Source: company website · checked Sep 4, 2026
2	CyderesPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	501-1,000	36
	“Cyderes is a global cybersecurity powerhouse offering comprehensive solutions around managed security, identity and access management, and professional services.” Source: company website · checked Sep 4, 2026
3	IamconceptsIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	51-200	35
	“A Proudly Canadian Company!” Source: company website · checked Sep 4, 2026
4	Fusion Computing LimitedPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	29
	“Fusion Computing is a Canadian-owned managed IT and cybersecurity firm serving businesses across Toronto, Hamilton, the GTA, and Metro Vancouver since 2012.” Source: company website · checked Sep 4, 2026
5	SUN IT SolutionsStrong evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	22
	“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: company website · checked Sep 4, 2026
6	IntercastIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	21
	“Intercast's mission is to be a strategic resource to our clients in Risk Reduction.” Source: company website · checked Sep 4, 2026
7	Armour CybersecurityIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	20
	“Armour Cybersecurity protects organizations from multi-faceted and ever-changing cyber threats.” Source: company website · checked Sep 4, 2026
8	Sourced Group An Amdocs CompanyStrong evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	201-500	20
	“Sourced Group an Amdocs Company is an award-winning global consulting firm that helps organisations make the most of cloud computing with a focus on security, governance, and…” Source: company website · checked Sep 4, 2026
9	E-TechPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	17
	“OUR STORY E-Tech has been providing system support and information technology consulting services to our clients since 2005.” Source: company website · checked Sep 4, 2026
10	Threat IQStrong evidence	Toronto, CanadaHQ checked Sep 4, 2026	11-50	16
	“Our goal is to provide a superior security consulting service regardless of the size or nature of your organization.” Source: company website · checked Sep 4, 2026
11	Complysec360 By EngaizIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	15
	“With digital transformation on the rise, global cybercrime damages are predicted to hit $10.5 Trillion by 2025.” Source: company website · checked Sep 4, 2026
12	Heighten SecurityPartial evidence	Toronto, CanadaHQ checked Sep 4, 2026	1-10	15
	“Heighten Security is a leading provider of cybersecurity services for organizations across Canada.” Source: company website · checked Sep 4, 2026
13	CyberwallIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	15
	“Cyberwall is one of the best cybersecurity services and training provider in Toronto.” Source: company website · checked Sep 4, 2026
14	Omega Network SolutionsPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	14
	“Award-Winning Toronto IT Support Experts.” Source: company website · checked Sep 4, 2026
15	Alary TechnologiesPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	1-10	12
	“Alary Technologies is an Apple Certified Consultant providing Managed IT Services to clients in regulated professional industries (medical, law, financial services) that help them…” Source: company website · checked Sep 4, 2026
16	Canadian Cyber INCStrong evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	10
	“Canadian Cyber Inc, headquartered in Toronto, Canada, is a leading cybersecurity consulting firm specializing in ISO/IEC 27001 and Information Security Management System (ISMS)…” Source: company website · checked Sep 4, 2026
17	IRM Consulting & AdvisoryIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	1-10	10
	“Imagine scaling your business without Cybersecurity and AI Governance roadblocks.” Source: company website · checked Sep 4, 2026
18	Kirsch GroupIndirect evidence	Toronto, CanadaHQ checked Sep 4, 2026	1-10	8
	“We protect what’s important to you.” Source: company website · checked Sep 4, 2026
19	GV Group For Your SecurityStrong evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	1-10	8
	“Since 2015, GV Group has been delivering security consulting and risk management services across Canada and the United States.” Source: company website · checked Sep 4, 2026
20	AWC ConsultingIndirect evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	1-10	8
	“Free yourself with effective, intelligent technology solutions customized to your needs.” Source: company website · checked Sep 4, 2026
21	Keydata Associates INCStrong evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	51-200	6
	“We provide a complete scope of digital identity security services encompassing consulting & advisory, systems integration, managed services, and training.” Source: company website · checked Sep 4, 2026
22	AdvisorsdenPartial evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	11-50	6
	“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: company website · checked Sep 4, 2026
23	TasproviderStrong evidence	Toronto, ON, CanadaHQ checked Sep 4, 2026	1-10	6
	“Our consulting team specializes in the design, implementation, security, and support of all infrastructure, cloud, and networking systems.” Source: company website · checked Sep 4, 2026

Showing 23 of 213 IT security consulting firms based in Toronto, Canada

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IT security consulting firms based in Toronto, Canada at a glance

As of Sep 4, 2026

1-10Median size (employees)

TorontoLargest hub · 213 HQs

Contacts with mobile numbers

Sep 4, 2026Data refreshed

Companies by employee count

1-10

126

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole Canada list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Toronto, over 213 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 IT security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “IT security consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among IT security consulting firms, 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 an evidence 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, 662 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 4, 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.

IT security consulting firms by metro in Canada

IT security consulting firms in Toronto213
IT security consulting firms in Montreal96
IT security consulting firms in Calgary83
IT security consulting firms in Ottawa80
IT security consulting firms in Vancouver55
IT security consulting firms in Mississauga38
IT security consulting firms in Edmonton29

Frequently asked

How many IT security consulting firms are there based in Toronto, Canada?

RevenueBase identified 213 IT security consulting firms 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?

Reliance North America, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most IT security consulting firms?

Toronto leads with 213 headquartered companies, followed by Montreal (96) and Calgary (83).

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 662 verified decision-maker contacts tracked across these 213 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 4, 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 SmartSearch, 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.