Security GuardsTang profile
Diligence Security GroupSecurity Guards in Oakland, California
Oakland, Californiadiligencesecuritygroup.com
Overview
Diligence Security Group, a veteran‑owned firm, delivers licensed, insured security across California. Services include armed and unarmed guard posts, mobile patrols, executive protection, risk‑assessment consulting, and integrated surveillance technology. Personnel are military‑trained, operate 24/7 with real‑time communication, and follow structured deployment protocols for government, commercial, residential and critical facility clients.
- Website
- diligencesecuritygroup.com
- Verified page
- May 23, 2026
- Industry
- Security Guards
- Headquarters
- 66 Franklin Street Suite 300, Oakland, CA 94607
Diligence Security Group contact information
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Phone number
Toll Free
844-877-9975
- Website
- diligencesecuritygroup.com
- Address
- 66 Franklin Street Suite 300, Oakland, CA 94607
- Source
- Tang business profile and public contact signals
- Confidence
- Verified contact data available
- Last verified
- May 23, 2026
- Updated on
- May 23, 2026
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