Company lists · Data verified August 2026

Top 25 Cybersecurity incident response based in Canada

There are 238 cybersecurity incident response headquartered in Canada (RevenueBase, August 2026). RevenueBase tracks 6,495 professional contacts across them, including 3,463 with verified work emails and 1,697 with mobile numbers. Toronto is the largest hub.

This list covers cybersecurity incident response 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.

238Companies
6,495Contacts tracked
3,463Verified emails
1,697Mobile numbers
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The 25 largest cybersecurity incident response based in Canada

Ranked by team size
Top 25 of 238 cybersecurity incident response based in Canada, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#CompanyHQEmployeesContactsVerified emails
1Arctic WolfWaterloo, ON1,001-5,0003,2001,896
2CyderesCalgary, AB1,001-5,000842485
3BluevoyantToronto501-1,000678502
4Safeaeon INCCharlottetown, PE51-20018827
5CypferToronto, ON51-200178107
6ISA CybersecurityCalgary, AB51-2008343
7Streamscan CybersecurityMontreal, QC11-50441
8Control GAPMississauga, ON11-504231
9ElastifyHalifax11-503220
10Intellisec SolutionsBrossard, QC11-503010
11Lyrical SecurityMarkham, ON11-502417
12Canary TrapMississauga11-502314
13IntercastToronto, ON11-502111
14Armour CybersecurityToronto, ON11-502013
15Valencia RiskOttawa, ON11-501910
16Rsolutions CorporationRegina, SK51-2001710
17Captosec Cybersecurity And IT Solutions For BusinessQuebec, QC11-50168
18Iron Spear Information Security LTDCalgary, AB11-501411
19Sabytel Technologies, INCOttawa, ON11-50148
20Assurance ITMontreal, QC11-50148
21Choicecom Networks & Communications LTDKingston, ON11-50146
22Hitachi Systems Security INCBlainville, QC501-1,000137
23Amsi NetworksVancouver, BC11-50133
24Uzado INCRichmond Hill, ON11-50108
25Gardien VirtuelMontreal, QC201-500107

Showing 25 of 238 cybersecurity incident response based in Canada

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Cybersecurity incident response based in Canada at a glance

As of Aug 28, 2026
1-10Median size (employees)
TorontoLargest hub · 53 HQs
1,697Contacts with mobile numbers
6Emails re-verified in last 30 days

Companies by employee count

1-10
139
11-50
71
51-200
17
201-500
4
501-1,000
4
1,001-5,000
3

Cybersecurity incident response by metro

MetroCompanies
Cybersecurity incident response in Toronto53
Cybersecurity incident response in Montreal33
Cybersecurity incident response in Calgary19
Cybersecurity incident response in Ottawa17
Cybersecurity incident response in Vancouver14
Cybersecurity incident response in Mississauga10
Cybersecurity incident response in Quebec7
Cybersecurity incident response in Edmonton6

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 incident response”, 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; 6 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 incident response are there based in Canada?

There are 238 cybersecurity incident response headquartered in Canada as of August 2026 (RevenueBase).

What is the largest company on this list?

Arctic Wolf, headquartered in Waterloo, 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 3,463 verified decision-maker contacts tracked across these 238 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.