Company lists · Data refreshed September 2026

Top 25 Security audit companies based in Canada

RevenueBase identified 123 security audit companies headquartered in Canada as of September 2026 and tracks 580 professional contacts across them, including 219 with verified work emails. Toronto is the largest hub.

This list covers security audit companies headquartered in Canada, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review
123Companies
580Contacts tracked
219Verified emails
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The 25 largest security audit companies based in Canada

Ranked by team size
Top 25 of 123 security audit companies based in Canada, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to security audit companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, ON, CanadaHQ checked Sep 21, 202611-5039 contacts →

Partial evidence

“Digital Boundary Group is an Information Technology Security Assurance Services firm serving clients throughout North America since 2003.”

Source: RevenueBase Database · checked Sep 21, 2026
2Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 202611-5034 contacts →

Partial evidence

“As your business grows, keeping up with compliance requirements and strengthening your security posture can be a real challenge.”

Source: RevenueBase Database · checked Sep 21, 2026
3Partial evidenceOttawa, ON, CanadaHQ checked Sep 21, 202611-5024 contacts →

Partial evidence

“Malleum isn’t your everyday, run-of-the-mill security firm.”

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceMississauga, ON, CanadaHQ checked Sep 21, 202611-5021 contacts →

Partial evidence

“Canary Trap is a North American offensive security firm that helps organizations validate their security before attackers do.”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceQuébec, QC, CanadaHQ checked Sep 21, 2026n/a19 contacts →

Indirect evidence

“Vumetric by TELUS Business is a leading provider of cybersecurity assessment services, our team of certified professionals conducts over 500 penetration tests annually for a wide…”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceOttawa, ON, CanadaHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“Valencia: Cyber Optimists.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceQuébec, QC, CanadaHQ checked Sep 21, 202611-5017 contacts →

Indirect evidence

“CAPTOSEC, Inc.”

Source: RevenueBase Database · checked Sep 21, 2026
8Strong evidenceOttawa, ON, CanadaHQ checked Sep 21, 202611-5017 contacts →

Strong evidence

“C3SA Cyber Security & Audit aims to be the foremost trusted cyber advisors delivering professional and managed security services to government, industry and non-profit…”

Source: RevenueBase Database · checked Sep 21, 2026
9Partial evidenceToronto, CanadaHQ checked Sep 21, 20261-1016 contacts →

Partial evidence

“Heighten Security is a leading provider of cybersecurity services for organizations across Canada.”

Source: RevenueBase Database · checked Sep 21, 2026
10Partial evidenceVancouver, BC, CanadaHQ checked Sep 21, 202611-5014 contacts →

Partial evidence

“Iron Spear is a niche cyber security advisory firm committed to providing solutions to meet the needs of our clients whether they are looking for security compliance, control…”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceOttawa, ON, CanadaHQ checked Sep 21, 202611-5014 contacts →

Indirect evidence

“With over 22 years of industry experience, Sabytel has cultivated a sterling reputation for providing strategic management consulting services to both public and private sectors.”

Source: RevenueBase Database · checked Sep 21, 2026
12Partial evidenceWaterdown, ON, CanadaHQ checked Sep 21, 20261-1011 contacts →

Partial evidence

“Birmingham Consulting provides information and cyber security services to help businesses address and effectively manage their digital security and compliance risks.”

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceMontréal, CanadaHQ checked Sep 21, 20261-1010 contacts →

Indirect evidence

“We provide ingenious and cost effective cybersecurity solutions and intelligence.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceCalgary, AB, CanadaHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“SecuredNet is a Calgary, Alberta based boutique cybersecurity and compliance firm that offers the following services- PCI-DSS Qualified Security Assessor (QSA, QPA, SSF SSLC)-…”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceToronto, ON, CanadaHQ checked Sep 21, 20261-108 contacts →

Partial evidence

“At Ardent Security, we've built our reputation on a simple principle: Exceptional credentials deliver exceptional results.”

Source: RevenueBase Database · checked Sep 21, 2026
16Partial evidenceCalgary, AB, CanadaHQ checked Sep 21, 202611-507 contacts →

Partial evidence

“MHM is Canada's first SCC-accredited ISO 42001 audit provider offering AIMS certification and compliance services.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceEdmonton, AB, CanadaHQ checked Sep 21, 202611-506 contacts →

Indirect evidence

“About Us Secured Approach is a cybersecurity consulting firm committed to safeguarding organizations against evolving cyber threats.”

Source: RevenueBase Database · checked Sep 21, 2026
18Partial evidenceVancouver, BC, CanadaHQ checked Sep 21, 20261-106 contacts →

Partial evidence

“OTH Security specializes in identifying and mitigating digital risks through comprehensive analysis, deep-dive threat intelligence, and robust penetration testing.”

Source: RevenueBase Database · checked Sep 21, 2026
19Partial evidenceMarkham, ON, CanadaHQ checked Sep 21, 202611-506 contacts →

Partial evidence

“When it comes to data security, it’s not a matter of whether a breach will occur – it’s a matter of when.”

Source: RevenueBase Database · checked Sep 21, 2026
20Strong evidenceCalgary, AB, CanadaHQ checked Sep 21, 20261-105 contacts →

Strong evidence

“ThreeShield Information Security provides customized IT security tools (through and consulting services (through Organizations with dedicated audit and security organizations use…”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceWaterloo, ON, CanadaHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“Changing the way you approach the threat of cyber crime The prevailing approach to cybersecurity is not working.”

Source: RevenueBase Database · checked Sep 21, 2026
22Indirect evidenceCalgary, CanadaHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“STSCyber stands as the pinnacle of customer-centricity in the realm of cybersecurity solutions and services.”

Source: RevenueBase Database · checked Sep 21, 2026
23Indirect evidenceToronto, CanadaHQ checked Sep 21, 202611-505 contacts →

Indirect evidence

“Empowering organizations to navigate modern cybersecurity challenges with confidence.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceOttawa, ON, CanadaHQ checked Sep 21, 20261-105 contacts →

Indirect evidence

“CyberSecurity 2.0 Network Threat Assessments.”

Source: RevenueBase Database · checked Sep 21, 2026
25Indirect evidenceKelowna, BC, CanadaHQ checked Sep 21, 20261-104 contacts →

Indirect evidence

“If it’s connected to the web, it’s at risk.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 123 security audit companies based in Canada

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Security audit companies based in Canada at a glance

As of Sep 21, 2026
37.8%Verified-email coverage
4.7Average contacts per company
1-10Median size (employees)
33.3%Largest-city concentration · Toronto
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
81
11-50
34
51-200
5
201-500
2
10001+
1

Email recency for this list is measured worldwide rather than for Canada, so it is reported there. Company counts and contact totals on this page are exact for Canada, over 123 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among security audit companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Canada whose own description of what they do matches “security audit companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names security audit companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among security audit companies, and records with no verified work email. Companies headquartered outside Canada are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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
Every listed company carries at least one verified work email, 219 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Security audit companies by metro

  • Security audit companies in Toronto41

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names security audit companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many security audit companies are there based in Canada?

RevenueBase identified 123 security audit companies headquartered in Canada as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Digital Boundary Group, headquartered in London, tops this list with the largest team on record.

Which city has the most security audit companies?

Toronto leads with 41 headquartered companies, followed by Ottawa (13) and Calgary (12).

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 219 verified decision-maker contacts tracked across these 123 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 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 with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.