2026 Ranking

Best Security Companies in Riverside

Ranking of the best private security companies in Riverside, California. The order prioritizes verified state licensing, track record and verified reviews; profile views and recommendations only fine-tune the order.

Verified state license Real user views 158 companies in Riverside

We're still gathering recommendations and verified customer reviews in Riverside. In the meantime, the order is based on license status and profile views.

Top-ranked companies in Riverside

1
A&
A & A INVESTIGATIONS
State Licensed
Riverside
Private Investigation
Get quotes in Riverside
Licensed
2
AI
A5 INVESTIGATIONS
State Licensed
Riverside
Private Investigation
Get quotes in Riverside
Licensed
3
AD
AD DAVIS ENTERTAINMENT GROUP, INC.
State Licensed
Riverside
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Riverside
Licensed
4
AI
ADJUSTERS INVESTIGATIONS
State Licensed
Riverside
Private Investigation
Get quotes in Riverside
Licensed
5
AS
AFLIX SECURITY GUARD SERVICES
State Licensed
Riverside
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Riverside
Licensed
6
AP
AH PROTECTION SERVICES
State Licensed
Riverside
Security GuardsExecutive ProtectionEvent Security+8
Get quotes in Riverside
Licensed
7
AA
AIR, AGENCY OF INVESTIGATION RECON
State Licensed
Riverside
Private Investigation
Get quotes in Riverside
Licensed
8
AI
AJA INVESTIGATIONS
State Licensed
Riverside
Private Investigation
Get quotes in Riverside
Licensed
9
AS
AK SECURITY ALARM
State Licensed
Riverside
Alarm MonitoringVideo Surveillance & CCTVAccess Control
Get quotes in Riverside
Licensed
10
AA
ALEXANDER AND ASSOCIATES
State Licensed
Riverside
Private Investigation
Get quotes in Riverside
Licensed

All state licensed security companies in Riverside

158 companies with a verified, active state license, ranked by track record and reputation. All checked against official license records.

See the remaining 108 licensed companies in the directory

Ranking methodology

The order reflects real, verifiable signals that are hard to manipulate. Companies with a verified state license appear first; within that group we prioritize the best-reviewed (verified reviews) and the most established according to official records. Profile views and community recommendations only fine-tune the order — a couple of votes can't move positions. For each company we show exactly which signals back its position.

State license — we verify each active license against state licensing boards like California BSIS and Illinois IDFPR. Licensed companies appear first.
Real profile views — how many people viewed the company's profile over the last 30 days.
Community recommendations — user votes with anti-fraud controls (fingerprint dedup).
Verified customer reviews — customer rating and review volume, when available.

Looking for more options in Riverside?

Browse the complete directory with all 158 private security companies listed in Riverside, filter by service type and compare pricing.

View full directory

Security services in Riverside

Security Guards en Riverside Armed Security Guards en Riverside Mobile Patrol en Riverside Event Security en Riverside Fire Watch Services en Riverside Executive Protection en Riverside K9 Security en Riverside Loss Prevention & Retail Security en Riverside Corporate Security en Riverside Warehouse & Industrial Security en Riverside Residential & HOA Security en Riverside Construction Site Security en Riverside Alarm Monitoring en Riverside Video Surveillance & CCTV en Riverside Access Control en Riverside Private Investigation en Riverside Armored Transport & Cash-in-Transit en Riverside Security Consulting en Riverside

More about private security in Riverside

Directory of RiversideAll security companies, with search and pagination.State Licensed in RiversideOnly companies with an active state license.

See all security companies in California

Frequently asked questions

What are the best private security companies in Riverside?

Top companies in Riverside include A & A INVESTIGATIONS, A5 INVESTIGATIONS, AD DAVIS ENTERTAINMENT GROUP, INC., ADJUSTERS INVESTIGATIONS, AFLIX SECURITY GUARD SERVICES, based on their active state license and the volume of profile views and community recommendations on HireSecurityNow.com. The order updates continuously based on these signals.

How is the ranking of security companies in Riverside determined?

Companies with a verified, active state license appear first, checked against official licensing board records like California BSIS and Illinois IDFPR. Within that group, the order reflects real profile views over the last 30 days, community recommendations (with anti-fraud controls) and verified customer reviews when available.

Are the ranked companies state licensed?

We verify each company's license status against official state licensing board records. Each company's profile shows its license number and status when it holds an active license.

How do I hire one of these companies in Riverside?

You can get free quotes from any company in the ranking: open its profile, submit a quote request with your requirements and you'll receive proposals directly. All quotes are free and come with no obligation.

How many security companies are listed in Riverside?

Our directory lists 158 companies in Riverside, California. You can browse the complete list in the Riverside security companies directory.

Best Security Companies in Riverside

Top-ranked companies in Riverside

A & A INVESTIGATIONS

A5 INVESTIGATIONS

AD DAVIS ENTERTAINMENT GROUP, INC.

ADJUSTERS INVESTIGATIONS

AFLIX SECURITY GUARD SERVICES

AH PROTECTION SERVICES

AIR, AGENCY OF INVESTIGATION RECON

AJA INVESTIGATIONS

AK SECURITY ALARM

ALEXANDER AND ASSOCIATES