Company lists · Data refreshed September 2026

Top 25 Due diligence security firms based in Canada

Name: Due diligence security firms based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 265 companies tracked

RevenueBase identified 265 due diligence security firms headquartered in Canada as of September 2026 and tracks 1,227 professional contacts across them, including 394 with verified work emails. Toronto is the largest hub.

This list covers due diligence security firms 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 28, 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 28, 2026 86% judged on-target in blind review

265Companies

1,227Contacts tracked

394Verified emails

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The 25 largest due diligence security firms based in Canada

Ranked by team size

Top 25 of 265 due diligence security firms based in Canada, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to due diligence security firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Control GAP	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 28, 2026	11-50	43 contacts →
	Indirect evidence “Control Gap is a privately held company, headquartered in Toronto Ontario Canada, with hundreds of satisfied customers across North America and Europe including retail and…” Source: RevenueBase Database · checked Sep 28, 2026
2	Digital Boundary Group	Partial evidence	London, ON, CanadaHQ checked Sep 28, 2026	11-50	39 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 28, 2026
3	Dnsnetworks Technology Company	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	51-200	38 contacts →
	Indirect evidence “We are a leading IT services provider based out of Ottawa, Montreal and Toronto.” Source: RevenueBase Database · checked Sep 28, 2026
4	Elastify	Partial evidence	Toronto, ON, CanadaHQ checked Sep 28, 2026	11-50	34 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 28, 2026
5	Intellisec Solutions	Indirect evidence	Brossard, QC, CanadaHQ checked Sep 28, 2026	11-50	30 contacts →
	Indirect evidence “IntelliSec Solutions delivers comprehensive cybersecurity services designed to protect and optimize your digital infrastructure.” Source: RevenueBase Database · checked Sep 28, 2026
6	Risk Control Canada	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 28, 2026	51-200	26 contacts →
	Indirect evidence “Risk Control Canada Inc.” Source: RevenueBase Database · checked Sep 28, 2026
7	Vcura Cybersecurity	Partial evidence	Calgary, AB, CanadaHQ checked Sep 28, 2026	11-50	23 contacts →
	Partial evidence “VCURA delivers industry leading IT security, operations, technology, consulting and support with a responsibility focus.” Source: RevenueBase Database · checked Sep 28, 2026
8	LCM Security INC	Partial evidence	Oakville, ON, CanadaHQ checked Sep 28, 2026	51-200	22 contacts →
	Partial evidence “LCM Security establishes a measurable standards based approach to risk tolerance for our customers.” Source: RevenueBase Database · checked Sep 28, 2026
9	Cyberium Group	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Cyberium Group is a professional services organization, recognized for excellence in providing high-quality consulting services.” Source: RevenueBase Database · checked Sep 28, 2026
10	Valencia Risk	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	11-50	19 contacts →
	Indirect evidence “Valencia: Cyber Optimists.” Source: RevenueBase Database · checked Sep 28, 2026
11	Perceptage International	Indirect evidence	Mt Royal, QC, CanadaHQ checked Sep 28, 2026	51-200	19 contacts →
	Indirect evidence “Perceptage International est une société de services conseil en sécurité, spécialisée dans l'évaluation des menaces, le développement et la mise en œuvre de protocoles d'urgence…” Source: RevenueBase Database · checked Sep 28, 2026
12	Captosec Cybersecurity And IT Solutions For Business	Indirect evidence	Québec, QC, CanadaHQ checked Sep 28, 2026	11-50	17 contacts →
	Indirect evidence “CAPTOSEC, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
13	C3sa Cyber Security & Audit	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	11-50	17 contacts →
	Partial 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 28, 2026
14	Iron Spear Information Security LTD	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 28, 2026	11-50	14 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 28, 2026
15	Sabytel Technologies, INC	Indirect evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	11-50	14 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 28, 2026
16	Securu INC	Partial evidence	Puslinch, ON, CanadaHQ checked Sep 28, 2026	11-50	12 contacts →
	Partial evidence “Our vision is to continue to educate our community about the importance of dedicated security solutions providers and expand our network of trusted clients through our knowledge…” Source: RevenueBase Database · checked Sep 28, 2026
17	Birmingham Consulting	Partial evidence	Waterdown, ON, CanadaHQ checked Sep 28, 2026	1-10	11 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 28, 2026
18	Onpar Solutions	Partial evidence	Ottawa, ON, CanadaHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “OnPar Solutions is a security consulting firm providing trusted physical and cybersecurity expertise to government, private sector, and not-for-profit organizations.” Source: RevenueBase Database · checked Sep 28, 2026
19	Uzado INC	Partial evidence	Richmond Hill, ON, CanadaHQ checked Sep 28, 2026	11-50	10 contacts →
	Partial evidence “We help your organization prepare for cyber security challenges, freeing you up to focus on growing and running your business!” Source: RevenueBase Database · checked Sep 28, 2026
20	Cybershell	Indirect evidence	Montréal, CanadaHQ checked Sep 28, 2026	1-10	10 contacts →
	Indirect evidence “We provide ingenious and cost effective cybersecurity solutions and intelligence.” Source: RevenueBase Database · checked Sep 28, 2026
21	Securednet	Partial evidence	Calgary, AB, CanadaHQ checked Sep 28, 2026	11-50	10 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 28, 2026
22	Sting Investigations INC	Partial evidence	New Westminster, BC, CanadaHQ checked Sep 28, 2026	1-10	10 contacts →
	Partial evidence “STING is a specialist security consulting, investigations, training and business risk agency providing intelligent investigative and guarding solutions for the retail…” Source: RevenueBase Database · checked Sep 28, 2026
23	Kirsch Group	Indirect evidence	Toronto, CanadaHQ checked Sep 28, 2026	1-10	9 contacts →
	Indirect evidence “We protect what’s important to you.” Source: RevenueBase Database · checked Sep 28, 2026
24	Clickcontrol	Partial evidence	Montreal, QC, CanadaHQ checked Sep 28, 2026	11-50	8 contacts →
	Partial evidence “We provide a comprehensive suite of services from network security and data protection to regulatory compliance and proactive threat management.” Source: RevenueBase Database · checked Sep 28, 2026
25	Contego INC	Indirect evidence	Oakville, ON, CanadaHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Contego is a highly focused professional services firm committed to IT Risk and Compliance Management engagements.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: due diligence security firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names due diligence security firms.
Partial evidence: Its own public description names part of due diligence security firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name due diligence security firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 265 due diligence security firms based in Canada

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Due diligence security firms based in Canada at a glance

As of Sep 28, 2026

32.1%Verified-email coverage

4.6Average contacts per company

1-10Median size (employees)

24.2%Largest-city concentration · Toronto

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

183

11-50

51-200

201-500

1,001-5,000

10001+

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 265 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 due diligence security firms, 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 “due diligence security firms”. 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 due diligence security firms), 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 due diligence security firms, 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, 394 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 28, 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.

Due diligence security firms by metro

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 due diligence security firms, 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 due diligence security firms are there based in Canada?

RevenueBase identified 265 due diligence security firms 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?

Control GAP, headquartered in Mississauga, tops this list with the largest team on record.

Which city has the most due diligence security firms?

Toronto leads with 64 headquartered companies, followed by Calgary (29) and Ottawa (25).

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 394 verified decision-maker contacts tracked across these 265 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 28, 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.