Company lists · Data verified August 2026

Top 25 Defense cybersecurity companies based in Canada

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 387 companies tracked

There are 387 defense cybersecurity companies headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 37,758 professional contacts across them, including 16,368 with verified work emails and 8,980 with mobile numbers. Toronto is the largest hub.

This list covers defense cybersecurity 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.

387Companies

37,758Contacts tracked

16,368Verified emails

8,980Mobile numbers

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The 25 largest defense cybersecurity companies based in Canada

Ranked by team size

Top 25 of 387 defense cybersecurity 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	Parsons Corporation	Edmonton, AB	10001+	19,490	6,161
2	Fortinet	Ottawa, ON	10001+	14,326	8,520
3	Cyderes	Calgary, AB	1,001-5,000	842	485
4	Safeaeon INC	Charlottetown, PE	51-200	188	27
5	Convergence Networks	Winnipeg, MB	201-500	183	118
6	Cypfer	Toronto, ON	51-200	178	107
7	Victrix	Montreal, QC	201-500	177	125
8	Iema Research & Development Pvt. Ltd. - Iemlabs	Burnaby, BC	51-200	140	43
9	Neverhack France	Montreal, QC	1,001-5,000	102	35
10	SRG Security Resource Group INC	Saskatoon, SK	501-1,000	90	29
11	ISA Cybersecurity	Calgary, AB	51-200	83	43
12	Allheart WEB	Mississauga, ON	51-200	64	24
13	Plurilock	Victoria, BC	51-200	63	34
14	ION	Calgary, AB	51-200	56	43
15	Ebryx LLC	Montreal, QC	201-500	47	26
16	Streamscan Cybersecurity	Montreal, QC	11-50	44	1
17	INPRO	Edmonton	51-200	30	2
18	Lyrical Security	Markham, ON	11-50	24	17
19	Armour Cybersecurity	Toronto, ON	11-50	20	13
20	Vumetric By Telus	Quebec, QC	n/a	20	12
21	Captosec Cybersecurity And IT Solutions For Business	Quebec, QC	11-50	16	8
22	Sabytel Technologies, INC	Ottawa, ON	11-50	14	8
23	Hitachi Systems Security INC	Blainville, QC	501-1,000	13	7
24	Websec	Victoria, BC	11-50	13	5
25	Amsi Networks	Vancouver, BC	11-50	13	3

Showing 25 of 387 defense cybersecurity companies based in Canada

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Defense cybersecurity companies based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 82 HQs

8,980Contacts with mobile numbers

22Emails re-verified in last 30 days

Companies by employee count

1-10

224

11-50

119

51-200

201-500

501-1,000

1,001-5,000

10001+

Defense cybersecurity companies by metro

Metro	Companies
Defense cybersecurity companies in Toronto	82
Defense cybersecurity companies in Montreal	50
Defense cybersecurity companies in Calgary	35
Defense cybersecurity companies in Ottawa	32
Defense cybersecurity companies in Vancouver	22
Defense cybersecurity companies in Edmonton	13
Defense cybersecurity companies in Quebec	12
Defense cybersecurity companies in Mississauga	10

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 “defense cybersecurity 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; 22 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 defense cybersecurity companies are there based in Canada?

There are 387 defense cybersecurity companies headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Parsons Corporation, headquartered in Edmonton, tops this list with the largest team on record.

Which city has the most defense cybersecurity companies?

Toronto leads with 82 headquartered companies, followed by Montreal (50) and Calgary (35).

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 16,368 verified decision-maker contacts tracked across these 387 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.