Company lists · Data refreshed September 2026
Top 14 Security firms based in Mississauga, Canada
RevenueBase identified 53 security firms headquartered in Mississauga, Canada as of September 2026 and tracks 2,317 professional contacts across them, including 129 with verified work emails. Toronto is the largest hub.
This list covers security firms headquartered in Mississauga, 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 14 largest security firms based in Mississauga, Canada
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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. | |||||
| 2 | 365 | ||||
“The Regal Security mission is “Your Peace of Mind”™.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | 110 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | 103 | ||||
“At Xtreme Security, we deliver coast-to-coast coverage across Canada and the USA, backed by $10 million liability insurance and over 100 years of combined management experience.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | 89 | ||||
“Legacy Protection Services offers a wide variety of premium security and investigative solutions that support customers in a range of dynamic situations and environments.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | 69 | ||||
“We are a dedicated results driven Canadian Security Company that strives to be a leading provider in security solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | 63 | ||||
“G Force Security Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | 37 | ||||
“North American Security Sercvices (NASS) is a “people first” company that, through our team of highly trained professionals, has a mission to provide our clients the highest…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | 17 | ||||
“Colossus is a brand-agnostic security integrator built around one principle: the client comes first, not the manufacturer, not the margin.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 | ||||
“MGL Protection Services is a Canadian security company; it was founded in 2016 and boasts a powerhouse senior staff with over twenty years experience in the industry.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | 11 | ||||
“At MAXtech Security Systems we pride ourselves in providing solutions for our clientele in a myriad of ways.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Vista Security & InvestigationsStrong evidence | 3 | |||
“Vista Security & Investigations is a full-service security company that offers integrated security solutions ranging from security guard services, alarms, mobile services, CCTV…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3 | ||||
Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1 | ||||
“Arma Group International delivers tailored personal security, intelligence, and risk management services for high-net-worth individuals, celebrities, families, and corporations…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
Showing 14 of 53 security firms based in Mississauga, Canada
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 129 reachable decision-makers.
Free signup · no credit card
Security firms based in Mississauga, Canada at a glance
As of Sep 6, 2026Companies by employee count
Email recency for this list is measured across the whole Canada list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Mississauga, over 53 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 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 Mississauga, 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 Mississauga 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, 129 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 in Canada
- 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 Mississauga, Canada?
RevenueBase identified 53 security firms headquartered in Mississauga, 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?
Chubb Fire & Security Canada, headquartered in Mississauga, 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 129 verified decision-maker contacts tracked across these 53 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.
Ready to reach these companies? Verified emails and direct dials for all 53 security firms based in Mississauga, Canada. Start with a free account, no credit card.
Get the full listRelated lists
Security firms by geography
- Security firms based in the United States
- Security firms based in the United Kingdom
- Security firms based in Brazil
- Security firms based in France
- Security firms based in Canada
- Security firms based in Germany
- Security firms based in Italy
- Security firms based in Australia
- Security firms based in the Netherlands
- Security firms based in South Africa
- Security firms based in Mexico
- Security firms based in Spain
Browse the directory
Browse: Companies home · Security firms in Canada · All Canada lists · All Security firms lists · New lists
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.