Company lists · Data verified August 2026

Top 25 Cybersecurity firms based in Canada

Name: Cybersecurity firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,077 companies tracked

There are 1,077 cybersecurity firms headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 30,802 professional contacts across them, including 15,976 with verified work emails and 5,858 with mobile numbers. Toronto is the largest hub.

This list covers cybersecurity firms 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.

1,077Companies

30,802Contacts tracked

15,976Verified emails

5,858Mobile numbers

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The 25 largest cybersecurity firms based in Canada

Ranked by team size

Top 25 of 1,077 cybersecurity firms 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	Arctic Wolf	Waterloo, ON	1,001-5,000	3,200	1,896
3	Cyderes	Calgary, AB	1,001-5,000	842	485
4	Bluevoyant	Toronto	501-1,000	678	502
5	Esentire	Waterloo, ON	501-1,000	630	433
6	Semperis	Kanata, ON	501-1,000	607	425
7	Onespan	Montreal, QC	501-1,000	587	364
8	Adga Group	Kingston, ON	201-500	325	132
9	Commissionaires BC	Vancouver, BC	1,001-5,000	301	16
10	Xalient	Toronto, ON	201-500	260	181
11	Resilience	Toronto, ON	201-500	256	188
12	ESI Technologies	Toronto, ON	201-500	191	109
13	D3 Security	Vancouver, BC	51-200	189	86
14	Safeaeon INC	Charlottetown, PE	51-200	188	27
15	Convergence Networks	Winnipeg, MB	201-500	183	118
16	Cypfer	Toronto, ON	51-200	178	107
17	Victrix	Montreal, QC	201-500	177	125
18	Gosecure	Montreal, QC	51-200	172	88
19	MS Solutions	Montreal, QC	51-200	157	55
20	Iema Research & Development Pvt. Ltd. - Iemlabs	Burnaby, BC	51-200	140	43
21	Neverhack France	Montreal, QC	1,001-5,000	102	35
22	SRG Security Resource Group INC	Saskatoon, SK	501-1,000	90	29
23	ISA Cybersecurity	Calgary, AB	51-200	83	43
24	Link11 Gmbh	Vancouver, BC	51-200	68	47
25	Canadian Institute For Cybersecurity	Fredericton, NB	51-200	64	35

Showing 25 of 1,077 cybersecurity firms based in Canada

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Cybersecurity firms based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 246 HQs

5,858Contacts with mobile numbers

15Emails re-verified in last 30 days

Companies by employee count

1-10

656

11-50

312

51-200

201-500

501-1,000

1,001-5,000

10001+

Cybersecurity firms by metro

Metro	Companies
Cybersecurity firms in Toronto	246
Cybersecurity firms in Montreal	128
Cybersecurity firms in Calgary	86
Cybersecurity firms in Ottawa	83
Cybersecurity firms in Vancouver	68
Cybersecurity firms in Mississauga	40
Cybersecurity firms in Edmonton	29
Cybersecurity firms in Quebec	25

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 “cybersecurity firms”, 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; 15 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 cybersecurity firms are there based in Canada?

There are 1,077 cybersecurity firms 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 cybersecurity firms?

Toronto leads with 246 headquartered companies, followed by Montreal (128) and Calgary (86).

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 15,976 verified decision-maker contacts tracked across these 1,077 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.