GOLDEN STATE INVESTIGATING (GSI) has been providing private investigative and security patrol services for over 35 years. Our professional team works to achieve client objectives based on sound experience and interactive collaboration with the client. In addition, GSI staff maintains the highest level credentials in their respective service specialties. As a Northern California company, GSI is one of the oldest locally owned and operated investigation and security services firms.

The company staff has worked for clients from individuals to Fortune 500 level companies in investigations, on-site security, patrol services and counterintelligence electronic sweeps. We maintain the strictest confidentiality in addressing sensitive investigative services and performing site assessments to determine security weaknesses and vulnerability. Experience, longevity and staffing resources are why when you have an investigative or security challenge we recommend scheduling a confidential meeting with one of our professional staff members.

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