Company lists · Data verified August 2026

Top 25 Cybersecurity and defense software companies based in Canada

Name: Cybersecurity and defense software companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 258 companies tracked

There are 258 cybersecurity and defense software companies headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 36,356 professional contacts across them, including 15,600 with verified work emails and 8,688 with mobile numbers. Toronto is the largest hub.

This list covers cybersecurity and defense software 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.

258Companies

36,356Contacts tracked

15,600Verified emails

8,688Mobile numbers

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The 25 largest cybersecurity and defense software companies based in Canada

Ranked by team size

Top 25 of 258 cybersecurity and defense software 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	Adga Group	Kingston, ON	201-500	325	132
4	Safeaeon INC	Charlottetown, PE	51-200	188	27
5	Cypfer	Toronto, ON	51-200	178	107
6	Iema Research & Development Pvt. Ltd. - Iemlabs	Burnaby, BC	51-200	140	43
7	SRG Security Resource Group INC	Saskatoon, SK	501-1,000	90	29
8	ISA Cybersecurity	Calgary, AB	51-200	83	43
9	Link11 Gmbh	Vancouver, BC	51-200	68	47
10	Allheart WEB	Mississauga, ON	51-200	64	24
11	Plurilock	Victoria, BC	51-200	63	34
12	ION	Calgary, AB	51-200	56	43
13	Purelogic IT Solutions	Kanata, ON	11-50	53	46
14	Ebryx LLC	Montreal, QC	201-500	47	26
15	Streamscan Cybersecurity	Montreal, QC	11-50	44	1
16	CCX Technologies	Ottawa, ON	11-50	29	13
17	BAE Systems Canada	Ottawa, ON	1,001-5,000	26	7
18	SSC Security Services Corp	Regina, SK	501-1,000	23	4
19	Scriptics	Toronto, ON	201-500	21	4
20	Threat IQ	Toronto	11-50	16	10
21	Vars Corporation	Montreal, QC	11-50	16	8
22	Forward Security	Toronto, ON	11-50	16	8
23	Carefreeit	Waterloo, ON	11-50	14	10
24	Hitachi Systems Security INC	Blainville, QC	501-1,000	13	7
25	Integra Networks	Ottawa, ON	11-50	12	3

Showing 25 of 258 cybersecurity and defense software companies based in Canada

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Cybersecurity and defense software companies based in Canada at a glance

As of Aug 28, 2026

1-10Median size (employees)

TorontoLargest hub · 60 HQs

8,688Contacts with mobile numbers

20Emails re-verified in last 30 days

Companies by employee count

1-10

136

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Cybersecurity and defense software companies by metro

Metro	Companies
Cybersecurity and defense software companies in Toronto	60
Cybersecurity and defense software companies in Montreal	34
Cybersecurity and defense software companies in Ottawa	22
Cybersecurity and defense software companies in Calgary	20
Cybersecurity and defense software companies in Vancouver	17
Cybersecurity and defense software companies in Mississauga	9
Cybersecurity and defense software companies in Edmonton	7
Cybersecurity and defense software companies in Kanata	5

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 and defense software 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; 20 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 and defense software companies are there based in Canada?

There are 258 cybersecurity and defense software 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 cybersecurity and defense software companies?

Toronto leads with 60 headquartered companies, followed by Montreal (34) and Ottawa (22).

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 15,600 verified decision-maker contacts tracked across these 258 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.