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.
The 25 largest cybersecurity incident response based in Canada
Ranked by team size| # | Company | Verified emails |
|---|---|---|
| 1 | 1,896 | |
| 2 | 485 | |
| 3 | 502 | |
| 4 | 27 | |
| 5 | 107 | |
| 6 | 43 | |
| 7 | 1 | |
| 8 | 31 | |
| 9 | 20 | |
| 10 | 10 | |
| 11 | 17 | |
| 12 | 14 | |
| 13 | 11 | |
| 14 | 13 | |
| 15 | 10 | |
| 16 | 10 | |
| 17 | 8 | |
| 18 | 11 | |
| 19 | 8 | |
| 20 | 8 | |
| 21 | 6 | |
| 22 | Hitachi Systems Security INC | 7 |
| 23 | 3 | |
| 24 | Uzado INC | 8 |
| 25 | 7 |
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, 2026Companies by employee count
Cybersecurity incident response by metro
| Metro | Companies |
|---|---|
| Cybersecurity incident response in Toronto | 53 |
| Cybersecurity incident response in Montreal | 33 |
| Cybersecurity incident response in Calgary | 19 |
| Cybersecurity incident response in Ottawa | 17 |
| Cybersecurity incident response in Vancouver | 14 |
| Cybersecurity incident response in Mississauga | 10 |
| Cybersecurity incident response in Quebec | 7 |
| Cybersecurity incident response in Edmonton | 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 “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.
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