Company lists · Data refreshed September 2026

Top 25 Big security companies based in Canada

Name: Big security companies based in Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 998 companies tracked

RevenueBase identified 998 big security companies headquartered in Canada as of September 2026 and tracks 45,102 professional contacts across them, including 5,270 with verified work emails. Toronto is the largest hub.

This list covers big security 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

998Companies

45,102Contacts tracked

5,270Verified emails

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The 25 largest big security companies based in Canada

Ranked by team size

Top 25 of 998 big security 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 big security 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Gardaworld	Partial evidence	Saint-laurent, CanadaHQ checked Sep 21, 2026	10001+	17,041 contacts →
	Partial evidence “GardaWorld is the world’s largest privately-owned security services company, offering cash services, physical and specialized security solutions, and with our Crisis24 portal, the…” Source: RevenueBase Database · checked Sep 21, 2026
2	Paladin Security Group LTD	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 21, 2026	10001+	4,835 contacts →
	Partial evidence “As one of Canada’s Best Managed Companies, boasting Canada’s 10 Most Admired Corporate Cultures, Paladin is Canada’s leading security company, with services and superior expertise…” Source: RevenueBase Database · checked Sep 21, 2026
3	Paragon Security	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	2,365 contacts →
	Partial evidence “Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.” Source: RevenueBase Database · checked Sep 21, 2026
4	Securitas Canada	Indirect evidence	North York, ON, CanadaHQ checked Sep 21, 2026	5,001-10,000	1,632 contacts →
	Indirect evidence “Over 90 years of protecting the things that matter, we’ve seen more than most.” Source: RevenueBase Database · checked Sep 21, 2026
5	Securiguard Services LTD	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 21, 2026	1,001-5,000	1,464 contacts →
	Partial evidence “Securiguard Services Limited has been at the forefront of the asset protection arena for 50 years by being a leading-edge innovative security and safety solutions provider.” Source: RevenueBase Database · checked Sep 21, 2026
6	Chubb Fire & Security Canada	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	759 contacts →
	Partial evidence “Chubb provides an unparalleled portfolio of security and life safety solutions to Canadian institutions, businesses and residences.” Source: RevenueBase Database · checked Sep 21, 2026
7	Commissionaires Ottawa	Partial evidence	Ottawa, CanadaHQ checked Sep 21, 2026	1,001-5,000	736 contacts →
	Partial evidence “Commissionaires manages the largest digital fingerprinting infrastructure in Canada, all while growing the diversity of physical, electronic and cyber security employment…” Source: RevenueBase Database · checked Sep 21, 2026
8	Guardteck Security Corp	Partial evidence	Burnaby, BC, CanadaHQ checked Sep 21, 2026	1,001-5,000	619 contacts →
	Partial evidence “Founded as a one-man operation in 2005, Guardteck was built on the belief that great security starts with great service.” Source: RevenueBase Database · checked Sep 21, 2026
9	Blackbird Security INC	Partial evidence	Vancouver, BC, CanadaHQ checked Sep 21, 2026	1,001-5,000	554 contacts →
	Partial evidence “Servicing Canada coast to coast, Blackbird provides professional security services that are customized, reliable, and flexible.” Source: RevenueBase Database · checked Sep 21, 2026
10	Regal Security INC	Partial evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	365 contacts →
	Partial evidence “The Regal Security mission is “Your Peace of Mind”™.” Source: RevenueBase Database · checked Sep 21, 2026
11	ASP Incorporated	Indirect evidence	Burlington, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	330 contacts →
	Indirect evidence “A.S.P.” Source: RevenueBase Database · checked Sep 21, 2026
12	Commissionaires BC	Indirect evidence	Vancouver, BC, CanadaHQ checked Sep 21, 2026	1,001-5,000	304 contacts →
	Indirect evidence “Commissionaires nationally is a private, Canadian, not-for-profit company with 15 independent divisions encompassing 50+ offices and more than employees.” Source: RevenueBase Database · checked Sep 21, 2026
13	Gardium Sécurité	Indirect evidence	Saint-eustache, CanadaHQ checked Sep 21, 2026	1,001-5,000	297 contacts →
	Indirect evidence “Gardium Sécurité offre une gamme complète de services en matière de sécurité privée auprès d'une clientèle diversifiée dans les secteurs: industriel, résidentiel, commercial…” Source: RevenueBase Database · checked Sep 21, 2026
14	Genesis Security Group	Partial evidence	Surrey, BC, CanadaHQ checked Sep 21, 2026	1,001-5,000	248 contacts →
	Partial evidence “Founded in 1997, Genesis Security Group is today one of Vancouver’s top security firms.” Source: RevenueBase Database · checked Sep 21, 2026
15	Trillium Information Security Systems	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	51-200	239 contacts →
	Partial evidence “Trillium Information Security Systems (TISS) is a leading global provider of cybersecurity solutions and services, established in 2005.” Source: RevenueBase Database · checked Sep 21, 2026
16	Synergy Protection Group INC	Partial evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	204 contacts →
	Partial evidence “Synergy is a dynamic client-centric and socially responsible security agency.” Source: RevenueBase Database · checked Sep 21, 2026
17	Commissionaires Northern Alberta, Northwest Territories & Nunavut Division	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 21, 2026	1,001-5,000	152 contacts →
	Partial evidence “Commissionaires Northern Alberta Division is a security and investigations company based out of Canada.” Source: RevenueBase Database · checked Sep 21, 2026
18	Cancom Security INC	Partial evidence	North York, ON, CanadaHQ checked Sep 21, 2026	1,001-5,000	138 contacts →
	Partial evidence “Whether you’re a homeowner or business owner, we offer a wide array of commercial and home security solutions to give you peace of mind.” Source: RevenueBase Database · checked Sep 21, 2026
19	Lorex Technology	Indirect evidence	Markham, ON, CanadaHQ checked Sep 21, 2026	51-200	121 contacts →
	Indirect evidence “Here at Lorex, we are committed to safeguarding what matters most-the people, property, and potential found in homes and businesses.” Source: RevenueBase Database · checked Sep 21, 2026
20	Executek International	Indirect evidence	Toronto, ON, CanadaHQ checked Sep 21, 2026	201-500	120 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
21	Wilsons Security	Partial evidence	Dartmouth, NS, CanadaHQ checked Sep 21, 2026	51-200	119 contacts →
	Partial evidence “Wilsons Security provides security solutions for homes throughout central Nova Scotia, and for businesses across Canada.” Source: RevenueBase Database · checked Sep 21, 2026
22	Liberty Security	Partial evidence	Edmonton, AB, CanadaHQ checked Sep 21, 2026	201-500	114 contacts →
	Partial evidence “Liberty takes pride in being Canada's choice for smart home and business security.” Source: RevenueBase Database · checked Sep 21, 2026
23	Wincon Security	Partial evidence	Scarborough, ON, CanadaHQ checked Sep 21, 2026	201-500	112 contacts →
	Partial evidence “For more than 30 years, Wincon Security has been a destination for those seeking careers in security and those seeking protection for their property and people.” Source: RevenueBase Database · checked Sep 21, 2026
24	RBG Security INC	Indirect evidence	Mississauga, ON, CanadaHQ checked Sep 21, 2026	201-500	110 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
25	Secureops	Partial evidence	Montreal, QC, CanadaHQ checked Sep 21, 2026	51-200	106 contacts →
	Partial evidence “SecureOps is a global managed security services provider (MSSP) with 25 years of experience strengthening the security maturity and resilience of enterprises and commercial…” Source: RevenueBase Database · checked Sep 21, 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: big security companies. 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 big security companies.
Partial evidence: Its own public description names part of big security companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name big security companies. 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 998 big security companies based in Canada

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Big security companies based in Canada at a glance

As of Sep 21, 2026

11.7%Verified-email coverage

45.2Average contacts per company

11-50Median size (employees)

14.4%Largest-city concentration · Toronto

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

313

11-50

347

51-200

212

201-500

501-1,000

1,001-5,000

5,001-10,000

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 998 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 big security 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 “big security 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 big security 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 big security 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, 5,270 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.

Big security companies 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 big security 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 big security companies are there based in Canada?

RevenueBase identified 998 big security 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?

Gardaworld, headquartered in Quebec, tops this list with the largest team on record.

Which city has the most big security companies?

Toronto leads with 144 headquartered companies, followed by Calgary (58) and Montreal (55).

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 5,270 verified decision-maker contacts tracked across these 998 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.