Company lists · Data refreshed September 2026
Top 25 Security firms based in Canada
RevenueBase identified 1,119 security firms headquartered in Canada as of September 2026 and tracks 48,361 professional contacts across them, including 5,120 with verified work emails and 3,292 with mobile numbers. Toronto is the largest hub.
This list covers 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, how directly it supports the match, and when it was last checked. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 25 largest security firms based in Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 17,041 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,835 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 2,365 | ||||
“Founded in 1976, Paragon Security is Ontario’s largest privately owned security company.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,632 | ||||
“Over 90 years of protecting the things that matter, we’ve seen more than most.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,464 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 759 | ||||
“Chubb provides an unparalleled portfolio of security and life safety solutions to Canadian institutions, businesses and residences.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 736 | ||||
“Commissionaires manages the largest digital fingerprinting infrastructure in Canada, all while growing the diversity of physical, electronic and cyber security employment…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 619 | ||||
“Founded as a one-man operation in 2005, Guardteck was built on the belief that great security starts with great service.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 554 | ||||
“Servicing Canada coast to coast, Blackbird provides professional security services that are customized, reliable, and flexible.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 386 | ||||
“Commissionaires is Canada’s largest private sector employer of veterans with over employees across Canada.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 365 | ||||
“The Regal Security mission is “Your Peace of Mind”™.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | 330 | ||||
“A.S.P.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 304 | ||||
“Commissionaires nationally is a private, Canadian, not-for-profit company with 15 independent divisions encompassing 50+ offices and more than employees.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 297 | ||||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Impact Security GroupStrong evidence | 266 | |||
“The fastest growing privately owned security company in Canada.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | 248 | ||||
“Founded in 1997, Genesis Security Group is today one of Vancouver’s top security firms.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | 243 | ||||
“Condor Security is a provider of professional security services.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | 224 | ||||
“Star Security is an independently owned Canadian Security Agency.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | 204 | ||||
“Synergy is a dynamic client-centric and socially responsible security agency.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | 176 | ||||
“We are Ontario's largest private Canadian security company.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | 152 | ||||
“Security Management Services is a privately owned company that is a complete Security Solutions provider.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | 152 | ||||
“Commissionaires Northern Alberta Division is a security and investigations company based out of Canada.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Cancom Security INCStrong evidence | 138 | |||
“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: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | 134 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Lorex TechnologyIndirect evidence | 121 | |||
“Here at Lorex, we are committed to safeguarding what matters most-the people, property, and potential found in homes and businesses.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 1,119 security firms based in Canada
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Security firms based in Canada at a glance
As of Sep 6, 2026Companies by employee count
Verified emails by last verification
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 firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among 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 an evidence 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, 5,120 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 6, 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 firms by metro
- Security firms in Toronto144
- Security firms in Calgary55
- Security firms in Mississauga53
- Security firms in Edmonton52
- Security firms in Montreal52
- Security firms in Surrey47
- Security firms in Vancouver45
- Security firms in Ottawa34
- Security firms in Brampton30
Frequently asked
How many security firms are there based in Canada?
RevenueBase identified 1,119 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?
Gardaworld, headquartered in Quebec, tops this list with the largest team on record.
Which city has the most security firms?
Toronto leads with 144 headquartered companies, followed by Calgary (55) and Mississauga (53).
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 5,120 verified decision-maker contacts tracked across these 1,119 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 6, 2026.
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Security firms by geography
- Security firms based in the United States
- Security firms based in the United Kingdom
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- Security firms based in France
- Security firms based in Germany
- Security firms based in Italy
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- Security firms based in the Netherlands
- Security firms based in South Africa
- Security firms based in Mexico
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- Security firms based in Argentina
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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 SmartSearch, 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.