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Security guard companies in Ontario, CA

24 security and alarm companies in Ontario offering security guard companies. California private patrol operators and Illinois private security contractor agencies: companies licensed to furnish security officers and patrols.

Featured spots · Ontario, CA

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Reach Businesses, HOAs, property managers and homeowners in California and Illinois checking a security guard or alarm company before they sign searching in Ontario, CA. Labelled placement above the list, your description and website, and messages sent straight to you.

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All 24

Secutors Prtctv & Invstgtv Srvcs909 S Cucamonga Ave Ste 106 · Ontario, CA 91761 · Security guard companiesPrivate patrol operator · licensed since 1997California-licensedSecurity guards
Andy Frain Services3200 E Guasti Rd Ste 100-21 · Ontario, CA 91761 · Security guard companiesPrivate patrol operator · licensed since 2000California-licensedSecurity guards
G4s Secure Solutions (USA) Inc4100 Jurupa St Ste 102 · Ontario, CA 91761 · Security guard companiesPrivate patrol operator branch office · licensed since 2000California-licensedSecurity guardsBranch office
Securitas Security Services USA, Inc.430 N Vineyard Ave Ste 335 · Ontario, CA 91764 · Security guard companiesPrivate patrol operator branch office · licensed since 2003California-licensedSecurity guardsBranch office
Platinum Group Protection1452 W D St · Ontario, CA 91762 · Security guard companiesPrivate patrol operator · licensed since 2006California-licensedSecurity guards
Contemporary Services Corporation4365 E Lowell St Ste A · Ontario, CA 91761 · Security guard companiesPrivate patrol operator branch office · licensed since 2010California-licensedSecurity guardsBranch office
Triton Global Services, Inc.4295 Jurupa St Ste 100 · Ontario, CA 91761 · Security guard companiesPrivate patrol operator · licensed since 2012California-licensedSecurity guards
G & G Security Inc1030 N Mountain Ave # 157 · Ontario, CA 91762 · Security guard companiesPrivate patrol operator · licensed since 2013California-licensedSecurity guards
X-Treme Security Services, Inc.337 N Vineyard Ave Ste 210 · Ontario, CA 91764 · Security guard companiesPrivate patrol operator · licensed since 2013California-licensedSecurity guards
Haywood Security Solutions1030 N Mountain Ave #116 · Ontario, CA 91762 · Security guard companiesPrivate patrol operator · licensed since 2015California-licensedSecurity guards
Universal Protection Service, LP4100 Jurupa St Ste 102 · Ontario, CA 91761 · Security guard companiesPrivate patrol operator branch office · licensed since 2019California-licensedSecurity guardsBranch office
Pacwest Security Service2990 Inland Empire Blvd Ste 104 · Ontario, CA 91764 · Security guard companiesPrivate patrol operator branch office · licensed since 2020California-licensedSecurity guardsBranch office
Whelan Security DBA Gardaworld Security Services2151 E Convention Center Way, Ste 125 · Ontario, CA 91764 · Security guard companiesPrivate patrol operator branch office · licensed since 2020California-licensedSecurity guardsBranch office
Integrity Security Patrol Services1101 S Milliken Ave Ste 134 · Ontario, CA 91761 · Security guard companiesPrivate patrol operator · licensed since 2021California-licensedSecurity guards
Kingz Protection and Security Services3400 Inland Empire Blvd Ste 100 · Ontario, CA 91764 · Security guard companiesPrivate patrol operator · licensed since 2021California-licensedSecurity guards1 branch office
Above All Security2321 S Magnolia Ave Unit 10E · Ontario, CA 91762 · Security guard companiesPrivate patrol operator · licensed since 2023California-licensedSecurity guards
Amethyst Protective Services, Inc1429 Orchard Ln · Ontario, CA 91764 · Security guard companiesPrivate patrol operator · licensed since 2023California-licensedSecurity guards
Kingdom Risk Mitigation Services Inc150 N Cardinal Privado · Ontario, CA 91764 · Security guard companiesPrivate patrol operator · licensed since 2023California-licensedSecurity guards
Trice Top Tier Security1331 N Vineyard Ave · Ontario, CA 91764 · Security guard companiesPrivate patrol operator · licensed since 2024California-licensedSecurity guards
Blackstone Consulting, Inc.760 S Rochester Ste A&B · Ontario, CA 91761 · Security guard companiesPrivate patrol operator branch office · licensed since 2025California-licensedSecurity guardsBranch office
Kingz Protection and Security Services3400 Inland Empire Blvd Ste 100 · Ontario, CA 91764 · Security guard companiesPrivate patrol operator branch office · licensed since 2025California-licensedSecurity guardsBranch office
Reactive Patrol Services550 W Elm St · Ontario, CA 91762 · Security guard companiesPrivate patrol operator · licensed since 2025California-licensedSecurity guards
Securitas Security Services USA, Inc.430 N Vineyard Ave Ste 304B · Ontario, CA 91764 · Security guard companiesPrivate patrol operator branch office · licensed since 2025California-licensedSecurity guardsBranch office
Third Shift Security2800 E Riverside Dr Apt 334 · Ontario, CA 91761 · Security guard companiesPrivate patrol operator · licensed since 2025California-licensedSecurity guards