Protection, Investigation, Surveillance Since 1981

Located in San Jose, California, Dietz Associates is a full service detective agency that provides a wide array of confidential and professional investigations for individuals, law firms, insurance companies, private organizations and corporations. To learn more about what we can do for you, please visit our Services page for more information. Rest assured knowing all inquiries, consultations and assignments are completely confidential.

Dietz Associates offers comprehensive protection services, executive protection and threat management for corporate, commercial, industrial, entertainment, residential and retail clients. Our proactive, preventative approach builds upon security best practices to identify risks, reduce threats and maximize response. We are uniquely qualified to provide you with a security solution customized to meet your specific needs.Dietz Associates, Inc. San Jose offers a wide array of investigative services to corporations, law firms, insurance companies, individuals, private organizations and corporations throughout the San Francisco Bay Area, Silicon Valley and statewide.