Company lists · Data verified August 2026

Top 25 Computer security companies based in Canada

Name: Computer security companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 176 companies tracked

There are 176 computer security companies headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 15,680 professional contacts across them, including 8,910 with verified work emails and 3,022 with mobile numbers. Toronto is the largest hub.

This list covers computer security companies headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

176Companies

15,680Contacts tracked

8,910Verified emails

3,022Mobile numbers

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The 25 largest computer security companies based in Canada

Ranked by team size

Top 25 of 176 computer security companies based in Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Fortinet	Ottawa, ON	10001+	14,326	8,520
2	Safeaeon INC	Charlottetown, PE	51-200	188	27
3	Iema Research & Development Pvt. Ltd. - Iemlabs	Burnaby, BC	51-200	140	43
4	ISA Cybersecurity	Calgary, AB	51-200	83	43
5	Link11 Gmbh	Vancouver, BC	51-200	68	47
6	ION	Calgary, AB	51-200	56	43
7	Safety	Vancouver, BC	11-50	50	15
8	Streamscan Cybersecurity	Montreal, QC	11-50	44	1
9	BYOS	Halifax, NS	11-50	27	19
10	Threat IQ	Toronto	11-50	16	10
11	Vars Corporation	Montreal, QC	11-50	16	8
12	Captosec Cybersecurity And IT Solutions For Business	Quebec, QC	11-50	16	8
13	Hitachi Systems Security INC	Blainville, QC	501-1,000	13	7
14	Xyfon Solutions	Vancouver, BC	11-50	11	4
15	Redarx Cyber Group	Saskatoon, SK	11-50	10	7
16	Onetriam	Markham, ON	11-50	10	3
17	L42 Solutions LTD	Maple Ridge, BC	11-50	9	5
18	Adamnetworks	London, ON	11-50	8	4
19	Ares Technology	Quebec City, QC	11-50	8	2
20	Cyberdefense AI INC	Montreal, QC	11-50	7	4
21	Source 44 Security	Markham, ON	11-50	6	3
22	ORA Consultants	Montreal, QC	11-50	6	2
23	Shield53	London, ON	11-50	4	2
24	Complytec INC	Mississauga, ON	11-50	4	1
25	Root UP INC	Brossard, QC	51-200	3	2

Showing 25 of 176 computer security companies based in Canada

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Computer security companies based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 40 HQs

3,022Contacts with mobile numbers

37Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

Computer security companies by metro

Metro	Companies
Computer security companies in Toronto	40
Computer security companies in Montreal	19
Computer security companies in Vancouver	15
Computer security companies in Calgary	14
Computer security companies in Ottawa	11
Computer security companies in Edmonton	6
Computer security companies in Mississauga	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “computer security companies”, with match quality audited by blind human judging, and headquartered in Canada.
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: Contact records re-verify on a rolling cadence; 37 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many computer security companies are there based in Canada?

There are 176 computer security companies headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Fortinet, headquartered in Ottawa, tops this list with the largest team on record.

Which city has the most computer security companies?

Toronto leads with 40 headquartered companies, followed by Montreal (19) and Vancouver (15).

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 8,910 verified decision-maker contacts tracked across these 176 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.