2026 Ranking

Best Security Companies in Oakland

Ranking of the best private security companies in Oakland, 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 120 companies in Oakland

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

Top-ranked companies in Oakland

1
1D
1ST DEFENSE
State Licensed
Oakland
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Oakland
Licensed
2
AI
A.P. INVESTIGATIONS
State Licensed
Oakland
Private Investigation
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Licensed
3
AS
ABC SECURITY SERVICE
State Licensed
Oakland
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Oakland
Licensed
4
AS
ABIDE SECURITY SERVICES, INC.
State Licensed
Oakland
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Oakland
Licensed
5
AP
ABSOLUTE PRIVATE PROTECTION AND SECURITY
State Licensed
Oakland
Security GuardsExecutive ProtectionEvent Security+8
Get quotes in Oakland
Licensed
6
AR
AFFECT REAL CHANGE SAFETY READY CORPS, INC.
State Licensed
Oakland
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Oakland
Licensed
7
AA
ALL ABOUT SECURITY AGENCY, CORP
State Licensed
Oakland
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Oakland
Licensed
8
AS
ALL SECURITY
State Licensed
Oakland
Alarm MonitoringVideo Surveillance & CCTVAccess Control
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Licensed
9
AP
ALPHA PATROL SECURITY SERVICES
State Licensed
Oakland
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Oakland
Licensed
10
AP
ANI PRIVATE SECURITY AND PATROL, INC
State Licensed
Oakland
Security GuardsEvent SecurityResidential & HOA Security+7
Get quotes in Oakland
Licensed

All state licensed security companies in Oakland

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

See the remaining 59 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 Oakland?

Browse the complete directory with all 120 private security companies listed in Oakland, filter by service type and compare pricing.

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Security services in Oakland

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

More about private security in Oakland

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

See all security companies in California

Frequently asked questions

What are the best private security companies in Oakland?

Top companies in Oakland include 1ST DEFENSE, A.P. INVESTIGATIONS, ABC SECURITY SERVICE, ABIDE SECURITY SERVICES, INC., ABSOLUTE PRIVATE PROTECTION AND SECURITY, 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 Oakland 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 Oakland?

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 Oakland?

Our directory lists 120 companies in Oakland, California. You can browse the complete list in the Oakland security companies directory.

Best Security Companies in Oakland

Top-ranked companies in Oakland

1ST DEFENSE

A.P. INVESTIGATIONS

ABC SECURITY SERVICE

ABIDE SECURITY SERVICES, INC.

ABSOLUTE PRIVATE PROTECTION AND SECURITY

AFFECT REAL CHANGE SAFETY READY CORPS, INC.

ALL ABOUT SECURITY AGENCY, CORP

ALL SECURITY

ALPHA PATROL SECURITY SERVICES

ANI PRIVATE SECURITY AND PATROL, INC