Company lists · Data refreshed September 2026

Top 22 Cybersecurity incident response based in Toronto, Canada

Name: Cybersecurity incident response based in Toronto, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 54 companies tracked

RevenueBase identified 54 cybersecurity incident response headquartered in Toronto, Canada as of September 2026 and tracks 382 professional contacts across them, including 160 with verified work emails and 32 with mobile numbers. Toronto is the largest hub.

This list covers cybersecurity incident response 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 10, 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 10, 2026 86% judged on-target in blind review

54Companies

382Contacts tracked

160Verified emails

32Mobile numbers

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The 22 largest cybersecurity incident response based in Toronto, Canada

Ranked by team size

Top 22 of 54 cybersecurity incident response based in Toronto, Canada, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity incident response: 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	ISA Cybersecurity	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	51-200	86 contacts →
	Partial evidence “ISA Cybersecurity is one of Canada’s leading cybersecurity services and solutions providers.” Source: RevenueBase Database · checked Sep 10, 2026
2	Cyderes	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 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 10, 2026
3	Elastify	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 10, 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 10, 2026
4	Armour Cybersecurity	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	11-50	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 10, 2026
5	Intercast	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 10, 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 10, 2026
6	Heighten Security	Partial evidence	Toronto, CanadaHQ checked Sep 10, 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 10, 2026
7	ORNA	Strong evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	11-50	11 contacts →
	Strong evidence “ORNA is a cyber incident response and tabletop exercise platform that uses AI to guide training, response, reporting and compliance efforts in an innovative real-time…” Source: RevenueBase Database · checked Sep 10, 2026
8	Ardent Security	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 10, 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 10, 2026
9	Advisorsden	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	11-50	6 contacts →
	Partial 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 10, 2026
10	Cybersteward	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	11-50	6 contacts →
	Partial 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 10, 2026
11	Velnet Consulting	Partial evidence	Toronto, CanadaHQ checked Sep 10, 2026	11-50	5 contacts →
	Partial evidence “Empowering organizations to navigate modern cybersecurity challenges with confidence.” Source: RevenueBase Database · checked Sep 10, 2026
12	Cytelligence	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 10, 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 10, 2026
13	Bitsproof	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 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 10, 2026
14	Malto Cyber	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	1-10	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 10, 2026
15	Interlan Consulting INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 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 10, 2026
16	Informa Solutions Canada	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	1-10	2 contacts →
	Partial 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 10, 2026
17	Ccurity	Indirect evidence	Toronto, CanadaHQ checked Sep 10, 2026	11-50	1 contacts →
	Indirect evidence “We are a boutique cyber security consulting and services firm whose focus is providing Security Research, Product Development, Security Management and Security Operations to…” Source: RevenueBase Database · checked Sep 10, 2026
18	Cyberbhoomi INC	Strong evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	1-10	1 contacts →
	Strong evidence “From strategic advisory consulting, to transforming your cybersecurity landscape, and incident response to the cloud & managed security services, and Bioinformatics solutions.” Source: RevenueBase Database · checked Sep 10, 2026
19	Kluetek	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	1-10	1 contacts →
	Indirect evidence “KlueteK is a custom IT services provider that helps you put your best foot forward.” Source: RevenueBase Database · checked Sep 10, 2026
20	Krystal Sekurity	Partial evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	1-10	1 contacts →
	Partial evidence “Empower Your Digital Defense: Unleash the Expertise of Our Cybersecurity Consultants In an era where digital threats loom at every corner, safeguarding your organization’s…” Source: RevenueBase Database · checked Sep 10, 2026
21	Staferm Solutions INC	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	1-10	1 contacts →
	Indirect evidence “Every day, business leaders face increasingly sophisticated cyber threats that put their operations, reputation, and compliance at risk.” Source: RevenueBase Database · checked Sep 10, 2026
22	Mtac AI	Strong evidence	Toronto, ON, CanadaHQ checked Sep 10, 2026	1-10	1 contacts →
	Strong evidence “MTAC provides organizations with the awareness needed to identify and respond to cybersecurity threats before they become victims.” Source: RevenueBase Database · checked Sep 10, 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: cybersecurity incident response. 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 cybersecurity incident response.
Partial evidence: Its own public description names part of cybersecurity incident response, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity incident response. 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 22 of 54 cybersecurity incident response based in Toronto, Canada

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Cybersecurity incident response based in Toronto, Canada at a glance

As of Sep 10, 2026

41.9%Verified-email coverage

8.4%Mobile-number coverage

7.1Average contacts per company

1-10Median size (employees)

98.1%Largest-city concentration · Toronto

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 13.0d

1490–30

1131–60

061–90

090–180

0180+

Company record updated

Median 58.0d

00–30

20231–60

9661–90

3190–180

53180+

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 cybersecurity incident response, 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 “cybersecurity incident response”. 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 cybersecurity incident response), 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 cybersecurity incident response, 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, 160 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 10, 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.

Cybersecurity incident response by metro in Canada

Cybersecurity incident response in Toronto53
Cybersecurity incident response in Montreal33

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 cybersecurity incident response, 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 cybersecurity incident response are there based in Toronto, Canada?

RevenueBase identified 54 cybersecurity incident response 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?

ISA Cybersecurity, headquartered in Toronto, tops this list with the largest team on record.

Which city has the most cybersecurity incident response?

Toronto leads with 53 headquartered companies, followed by Montreal (33) and Calgary (19).

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 160 verified decision-maker contacts tracked across these 54 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 10, 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.