Company lists · Data refreshed September 2026

Top 25 Government security contractors based in Canada

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

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 429 companies tracked

RevenueBase identified 429 government security contractors headquartered in Canada as of September 2026 and tracks 10,557 professional contacts across them, including 806 with verified work emails and 286 with mobile numbers. Toronto is the largest hub.

This list covers government security contractors 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 3, 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 3, 2026 86% judged on-target in blind review

429Companies

10,557Contacts tracked

806Verified emails

286Mobile numbers

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The 25 largest government security contractors based in Canada

Ranked by team size

Top 25 of 429 government security contractors based in Canada, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names government security contractors: 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	Securitas CanadaIndirect evidence	North York, ON, CanadaHQ checked Sep 3, 2026	5,001-10,000	1,630
	“Over 90 years of protecting the things that matter, we’ve seen more than most.” Source: company website · checked Sep 3, 2026
2	Securiguard Services LTDPartial evidence	Burnaby, AB, CanadaHQ checked Sep 3, 2026	1,001-5,000	1,455
	“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 3, 2026
3	Commissionaires Great LakesIndirect evidence	Oakville, ON, CanadaHQ checked Sep 3, 2026	1,001-5,000	383
	“Commissionaires is Canada’s largest private sector employer of veterans with over employees across Canada.” Source: company website · checked Sep 3, 2026
4	Regal Security INCPartial evidence	Mississauga, ON, CanadaHQ checked Sep 3, 2026	1,001-5,000	360
	“The Regal Security mission is “Your Peace of Mind”™.” Source: company website · checked Sep 3, 2026
5	ASP IncorporatedIndirect evidence	Burlington, ON, CanadaHQ checked Sep 3, 2026	1,001-5,000	326
	“A.S.P.” Source: company website · checked Sep 3, 2026
6	Commissionaires BCIndirect evidence	Vancouver, BC, CanadaHQ checked Sep 3, 2026	1,001-5,000	301
	“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 3, 2026
7	Gardium SécuritéIndirect evidence	Saint-eustache, CanadaHQ checked Sep 3, 2026	1,001-5,000	293
	“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 3, 2026
8	Genesis Security GroupPartial evidence	Surrey, BC, CanadaHQ checked Sep 3, 2026	1,001-5,000	248
	“Founded in 1997, Genesis Security Group is today one of Vancouver’s top security firms.” Source: company website · checked Sep 3, 2026
9	Synergy Protection Group INCPartial evidence	Toronto, ON, CanadaHQ checked Sep 3, 2026	1,001-5,000	203
	“Synergy is a dynamic client-centric and socially responsible security agency.” Source: company website · checked Sep 3, 2026
10	Cancom Security INCPartial evidence	North York, ON, CanadaHQ checked Sep 3, 2026	1,001-5,000	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 3, 2026
11	Executek InternationalIndirect evidence	Toronto, ON, CanadaHQ checked Sep 3, 2026	201-500	117
	Source: company website · checked Sep 3, 2026
12	RBG Security INCIndirect evidence	Mississauga, ON, CanadaHQ checked Sep 3, 2026	201-500	110
	Source: company website · checked Sep 3, 2026
13	Wincon SecurityPartial evidence	Scarborough, ON, CanadaHQ checked Sep 3, 2026	201-500	110
	“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: company website · checked Sep 3, 2026
14	Shadow SecurityIndirect evidence	Halifax, NS, CanadaHQ checked Sep 3, 2026	201-500	100
	“1100 Bands, 530 Artists, 720 Celebrities, and 1 Senior team with 143 years of combined experience.” Source: company website · checked Sep 3, 2026
15	West EGG SecurityPartial evidence	North York, ON, CanadaHQ checked Sep 3, 2026	501-1,000	94
	“West Egg Security (WES) is a premier provider of tailored security solutions dedicated to safeguarding assets, operations, and people.” Source: company website · checked Sep 3, 2026
16	Legacy Protection ServicesPartial evidence	Mississauga, ON, CanadaHQ checked Sep 3, 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 3, 2026
17	IntelligardePartial evidence	Toronto, MB, CanadaHQ checked Sep 3, 2026	501-1,000	86
	“Intelligarde® (an Avante Logixx company) is a Canadian owned and operated security company with a global mission.” Source: company website · checked Sep 3, 2026
18	Lion Guard SecurityPartial evidence	Toronto, ON, CanadaHQ checked Sep 3, 2026	201-500	83
	“Lion Guard Security provides security professionals who strike the perfect balance between customer service and assertiveness.” Source: company website · checked Sep 3, 2026
19	Emergency Security Management ESMIndirect evidence	Markham, ON, CanadaHQ checked Sep 3, 2026	201-500	83
	“FOR OUR LATEST COMPANY INFO.” Source: company website · checked Sep 3, 2026
20	Security Guard Group LimitedPartial evidence	London, ON, CanadaHQ checked Sep 3, 2026	201-500	77
	“Security Guard Group (SGG) is a distinguished private security services agency, established by seasoned security experts with a background in some of Ontario's most prominent…” Source: company website · checked Sep 3, 2026
21	Ultimate Security Services INCIndirect evidence	York, ON, CanadaHQ checked Sep 3, 2026	201-500	63
	“Our highly organized, hard-working and intelligent office staff are here to ensure you receive the best possible service.” Source: company website · checked Sep 3, 2026
22	Peregrine ProtectionPartial evidence	North York, ON, CanadaHQ checked Sep 3, 2026	201-500	58
	“We are a small security company who are committed to delivering exceptional value and service through fully integrated security solutions and systems/ From physical on-site…” Source: company website · checked Sep 3, 2026
23	ECS CanadaIndirect evidence	Québec, QC, CanadaHQ checked Sep 3, 2026	201-500	47
	“Fondé en 2013 par MM.” Source: company website · checked Sep 3, 2026
24	Skanna Security & InvestigationsStrong evidence	Toronto, ON, CanadaHQ checked Sep 3, 2026	201-500	44
	“Welcome to Skanna Security & Investigations The SKANNA ADVANTAGE … our company standards All Skanna Investigators and Security Guards are licensed by the Government of Ontario…” Source: company website · checked Sep 3, 2026
25	Securiwatch SecurityPartial evidence	Vancouver, BC, CanadaHQ checked Sep 3, 2026	n/a	29
	“Securiwatch is a leading security company dedicated to providing innovative and reliable security solutions across various industries.” Source: company website · checked Sep 3, 2026

Showing 25 of 429 government security contractors based in Canada

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Government security contractors based in Canada at a glance

As of Sep 3, 2026

11-50Median size (employees)

TorontoLargest hub · 66 HQs

286Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

152

51-200

128

201-500

501-1,000

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

31–60

61–90

488

90–180

253

180+

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 government security contractors, 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 “government security contractors”. 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 government security contractors, 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, 806 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 3, 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.

Government security contractors by metro

Government security contractors in Toronto66

Frequently asked

How many government security contractors are there based in Canada?

RevenueBase identified 429 government security contractors 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?

Securitas Canada, headquartered in Sudbury, tops this list with the largest team on record.

Which city has the most government security contractors?

Toronto leads with 66 headquartered companies, followed by Mississauga (24) and Vancouver (23).

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 806 verified decision-maker contacts tracked across these 429 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 3, 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.