Diligence Security Group

Diligence Security Group is a veteran-owned security company offering armed and unarmed guard services, security consulting, surveillance and access control technology, professional training, mobile patrol, and executive protection. Its clients include government agencies, commercial facilities, residential communities, and construction sites.

The company says its officers are licensed and professionally trained, with supervisors overseeing them and real-time communication between officers and clients. Coverage is listed for Greater Los Angeles, the Greater Bay Area, and Greater Sacramento, and the company operates around the clock, with an Oakland office on Franklin Street.