Cybersecurity services, physical and cyber penetration testing

Gateway Security Inc.

Newark, New Jersey, USA

Armed and unarmed guards; access control; patrol • +1-973-274-3423

Gateway Security Service, LLC

St. Louis, Missouri, USA

Armed/unarmed guards; patrol; special events • https://www.gatewaysecurityservice.com • +1-314-394-2879

Gateway Security Service, LLC

St. Louis, Missouri, USA

Armed/unarmed guards; patrol; special events • https://www.gatewaysecurityservice.com • +1-314-394-2879

GCI Security Inc.

St. Louis, Missouri, USA

Uniformed officers; patrol; loss prevention; alarm response • info@gcisecurityinc.com • https://www.gcisecurityinc.com • +1-314-481-7088

GCI Security Inc.

St. Louis, Missouri, USA

Uniformed officers; patrol; loss prevention; alarm response • info@gcisecurityinc.com • https://www.gcisecurityinc.com • +1-314-481-7088

GCS Security (Global Corporate Services)

Henderson, Nevada, USA

Armed/unarmed officers; vehicle patrol; security analysis; fire watch • gcssecurity@gcs.vegas • https://gcssecurity.vegas • +1-702-483-6752

Gemini Security Systems

Amherst, New Hampshire, USA

Burglar/fire alarms; cameras; access control; monitoring • https://www.geminisecuritysystems.com • +1-603-594-1691

General Security Services Corporation (GSSC)

Bloomington, Minnesota, USA

Security guards; mobile security; monitoring; access control; video surveillance; integration • https://gssc.net • +1-952-858-5000

Georgia Carolina Security

Augusta, Georgia, USA

Alarm and monitoring; security systems • https://georgiacarolinasecurity.com

Georgia Security Agency, Inc.

Athens, Georgia, USA

Armed/unarmed guards; executive protection; patrol • https://georgiaonsitesecurity.com • +1-706-543-4086

Gillmore Security Systems

Oakwood Village, Ohio, USA

Alarm systems; access control; monitoring • mail@gillmoresecurity.com • https://www.gillmoresecurity.com • +1-440-232-1000

GIS Security

New Haven, Connecticut, USA

Security guards; security consulting • +1-203-954-9109

Global Risk Solutions, Inc. (Oklahoma City)

Oklahoma City, Oklahoma, USA

Security officers; executive protection; risk consulting • https://www.grsprotection.com

Global Security & Investigations (G.I.S.)

Myrtle Beach, South Carolina, USA

Armed guards; mobile patrol; executive protection; investigations • https://globalpiservices.com • +1-843-748-0642

Global Security Services

Davenport, Iowa, USA

Armed/unarmed security; investigations; armored transport; cash logistics • info@globalsecurityservices.com • https://globalsecurityservices.com • +1-877-304-4477

GoJoe Patrol

Spokane Valley, Washington, USA

On-site guards; mobile patrol; custom security • https://www.gojoepatrol.com • +1-509-893-9151

GoJoe Patrol of Boise

Boise, Idaho, USA

Mobile patrol; on-site officers; alarm response; armed guards • https://www.gojoepatrol.com/boise-id/ • +1-208-922-5333

GoJoe Patrol of Coeur d'Alene

Coeur d'Alene, Idaho, USA

Mobile patrol; on-site officers; alarm response; armed guards • https://www.gojoepatrol.com/couer-dalene-id/ • +1-208-422-7011

Goldbelt Security Services

Juneau, Alaska, USA

Security officers; government and corporate security • https://www.goldbelt.com • +1-907-790-1435

Golem Security Services

Jeffersontown, Kentucky, USA

Armed/unarmed officers; mobile patrol • info@golemsecurityservices.com • https://golemsecurityservices.com • +1-502-298-6122

Good Hands Security Services

Grand Rapids, Michigan, USA

Security guards; patrol; event security • https://goodhandsmi.com • +1-616-389-2241

Goodwill Security Services

Oklahoma City, Oklahoma, USA

Contract security; facility security • security@okgoodwill.org • https://okgoodwill.org/work/security-services/ • +1-405-236-4451

Grade A Security Service, LLC

Minneapolis, Minnesota, USA

Security guards; patrol • https://www.gradeasecurity.com • +1-763-600-3941

Granco Security, Inc.

Redford, Michigan, USA

Security guards; patrol • https://grancosecurity.com • +1-313-531-3300

Granite Security Service, LLC

Concord, New Hampshire, USA

Armed/unarmed agents; event security; executive protection • https://www.granite-security.com • +1-603-397-7542

PROTECTION.RED

Security Companies Directory

Gateway Security Inc.

Gateway Security Service, LLC

Gateway Security Service, LLC

GCI Security Inc.

GCI Security Inc.

GCS Security (Global Corporate Services)

Gemini Security Systems

General Security Services Corporation (GSSC)

Georgia Carolina Security

Georgia Security Agency, Inc.

Gillmore Security Systems

GIS Security

Global Risk Solutions, Inc. (Oklahoma City)

Global Security & Investigations (G.I.S.)

Global Security Services

GoJoe Patrol

GoJoe Patrol of Boise

GoJoe Patrol of Coeur d'Alene

Goldbelt Security Services

Golem Security Services

Good Hands Security Services

Goodwill Security Services

Grade A Security Service, LLC

Granco Security, Inc.

Granite Security Service, LLC

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