About JMG
Commercial only, Southern California only, since 1987.
Careers
Roles open across Southern California.
Certifications
Licences and manufacturer credentials.
Partners
19 manufacturers. We make none of them.
Testimonials
Clients naming the technician who came.
Commercial security since 1987
Our own technicians in every region we cover, from Santa Barbara to San Diego.
Protect people
6 solutions · identity, visitors, intercom
Protect property
7 solutions · intrusion, perimeter, video
Protect operations
5 solutions · alarms, incidents, continuity
Smart buildings
6 solutions · occupancy, parking, IoT
Enterprise security
8 solutions · one standard, many sites
All 32 solutions →
JMGCONNEX
Our own mesh radio network: alarm signals that do not depend on a phone line.
Security systems →
Access control systems
Doors, credentials and who came through
Security monitoring
Two central stations, around the clock
Video surveillance systems
Cameras, recording and analytics
Fire alarm systems
Detection, notification, inspection
Mass notification systems
One message to every person on site
Professional service →
Security consulting
What the risk actually is
Security system design
Device list, signal paths, drawings
Security engineering
Specifications that hold up
Security assessments
A documented look at every site
Installation
Our own technicians, every region
Integration
Everything on one interface
System upgrades
Keep what works, replace what does not
Managed security services
Run by the people who built it
All 13 services →
Financial
Banks and credit unions
Healthcare
Hospitals, clinics and labs
Education
Schools and campuses
Manufacturing
Plants and production floors
Government
Municipal and public buildings
Office
Commercial offices and towers
Security logistics
Warehouses and distribution
Retail
Stores and stockrooms
Hospitality
Hotels, venues and resorts
All industries →
Los Angeles County
Long Beach to the Antelope Valley
Orange County
Headquarters, Fountain Valley
San Diego County
Our Escondido office
Inland Empire
Riverside and San Bernardino
Ventura County
Oxnard, Ventura, Thousand Oaks
Santa Barbara County
Santa Barbara to Santa Maria
Central Coast
Our San Luis Obispo office
All service areas →
Three offices
Fountain Valley
Headquarters · 17150 Newhope Street, Suite 109
Escondido
San Diego office
San Luis Obispo
Central Coast office
Our own technicians cover every county from Santa Barbara to the border.
Case studies
Five jobs, named clients
Whitepapers
Long reads on one problem
Compliance resources
Codes, audits and checklists
Downloads
Everything in the library
Blog
News, guides and client stories
Security assessment
Request a free assessment
All resources →
The Small Gaps That Create Big Problems In Data Center Physical Security
July 2, 2026
Emergency · 24 hours
A technician, any hour. Follow the prompts.
Central station (866) 459-0009
Alarm monitoring, around the clock
Request a quote
A price for a system you have in mind
Schedule a site survey
A free walkthrough of every location
Contact sales
Talk to someone about a new project
Contact support
Help with a system we look after
Office locations
Fountain Valley, Escondido and San Luis Obispo
Contact JMG →
Headquarters
Fountain Valley
17150 Newhope Street, Suite 109
Fountain Valley, CA 92708
The same number reaches a technician around the clock.
Mile Square Golf Course, Fountain Valley hosted by Pacific Premier Bank
JMG SECURITY SYSTEMS’ Annual Benefit was a record breaking year! Check out event photos.
Talk to JMG
A JMG specialist walks your site and tells you what would help. Free, and no obligation to buy anything at the end of it.
