Company lists · Data refreshed September 2026

Top 13 Security services companies based in Mississauga, Canada

Name: Security services companies based in Mississauga, Canada
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 43 companies tracked

RevenueBase identified 43 security services companies headquartered in Mississauga, Canada as of September 2026 and tracks 2,209 professional contacts across them, including 101 with verified work emails. Toronto is the largest hub.

This list covers security services companies 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 6, 2026 86% judged on-target in blind review

43Companies

2,209Contacts tracked

101Verified emails

Explore all 43 companies → Free signup · no credit card · 500 free credits

The 13 largest security services companies based in Mississauga, Canada

Ranked by team size

Top 13 of 43 security services companies based in Mississauga, Canada, ranked by team size, largest first. Data refreshed Sep 6, 2026. Evidence rates how directly each company's own description names security services companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Chubb Fire & Security CanadaStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	1,001-5,000	759
	“Chubb provides an unparalleled portfolio of security and life safety solutions to Canadian institutions, businesses and residences.” Source: company website · checked Sep 6, 2026
2	Regal Security INCStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	1,001-5,000	365
	“The Regal Security mission is “Your Peace of Mind”™.” Source: company website · checked Sep 6, 2026
3	RBG Security INCIndirect evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	201-500	110
	Source: company website · checked Sep 6, 2026
4	Xtreme Security INCStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	1,001-5,000	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, 2026
5	Legacy Protection ServicesStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	201-500	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, 2026
6	Pennine Security SolutionsStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	51-200	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, 2026
7	G Force SecurityStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	51-200	63
	“G Force Security Inc.” Source: company website · checked Sep 6, 2026
8	North American Security ServicesStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	11-50	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, 2026
9	Colossus SecurityStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	11-50	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, 2026
10	MGL Protection ServicesStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	11-50	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, 2026
11	Maxtech Security SystemsStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	11-50	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, 2026
12	Vista Security & InvestigationsStrong evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	501-1,000	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, 2026
13	Stonewall Security Services INCIndirect evidence	Mississauga, ON, CanadaHQ checked Sep 6, 2026	51-200	3
	Source: company website · checked Sep 6, 2026

Showing 13 of 43 security services companies based in Mississauga, Canada

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Security services companies based in Mississauga, Canada at a glance

As of Sep 6, 2026

51-200Median size (employees)

TorontoLargest hub · 110 HQs

Contacts with mobile numbers

Sep 6, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 43 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 services companies, 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 services companies”. 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 services companies, 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, 101 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 services companies by metro in Canada

Security services companies in Toronto110
Security services companies in Mississauga43
Security services companies in Calgary42
Security services companies in Edmonton42
Security services companies in Montreal42
Security services companies in Vancouver36
Security services companies in Surrey34
Security services companies in Ottawa28
Security services companies in Brampton26

Frequently asked

How many security services companies are there based in Mississauga, Canada?

RevenueBase identified 43 security services companies 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 services companies?

Toronto leads with 110 headquartered companies, followed by Mississauga (43) and Calgary (42).

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 101 verified decision-maker contacts tracked across these 43 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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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.