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Executive Profile

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MARC A. GARZA
Founder & Chief Executive Officer
Licensed Private Investigator
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Marc A. Garza is the Founder and CEO of GRI Investigative Group, Inc., a California-based investigative firm providing litigation support, corporate investigations, workplace misconduct investigations, and complex fact-finding services to law firms, corporations, government agencies, and private clients.
 

With more than 30 years of combined law enforcement and investigative experience, Mr. Garza has conducted and supervised investigations involving fraud, workplace misconduct, criminal defense, civil litigation, wrongful death, and corporate matters. He has testified in both California State and Federal Courts and is recognized for delivering thorough, objective, and court-defensible investigative work.
 

Prior to founding GRI Investigative Group, Mr. Garza served over two decades in law enforcement retiring at the rank of Police Sergeant. Today, he leads a team of experienced investigators dedicated to providing professional, discreet, and results-driven investigative services throughout California.

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Professional Highlights

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• 30+ Years Combined Investigative Experience
• Founder & CEO, GRI Investigative Group, Inc.
• Licensed California Private Investigator #28059
• State & Federal Court Testimony Experience
• Civil & Criminal Litigation Support
• Corporate & Workplace Investigations
• Witness Interview & Statement Specialist
• SWAT & Firearms Training Experience
• Field Training Officer (FTO)

NOTE: Due to the sensitive and often confidential nature of our work, we do not publicly identify all personnel or disclose operational details. All investigators operate under the direction and standards of GRI Investigative Group, ensuring professionalism, discretion, and well-documented work product that aligns with the expectations of legal counsel  and our private clients. 
2026 - GRI Investigative Group, Inc.
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