AGENCY PROFILE  "Leadership and experience that matters".


Marc A. Garza

 Principal 


Meet Agency Owner, Marc A. Garza:

"I am honored to be regarded as an investigative resource for my clients. I know first-hand the level of expertise and care that's required to conduct concise legal investigations. I value my client's time , investment, and trust in me by providing transparent investigations so they can make critical  legal, and business decisions with confidence. Our extensive investigative capabilities, and reputation make us uniquely qualified to assist. My team and I look forward to establishing new business relationships, and working closely with you to meet your investigative objectives." 


Background and Investigative Experience:

Marc  Garza is the agency owner of GRI Investigations and has been a licensed private investigator since 2012. His agency focuses on complex investigations for private clients, law firms, corporate legal counsel, and insurance companies.  He has assisted legal counsel with investigations and research in numerous family law, civil litigation and felony criminal defense cases filed in the Superior Court of California,  U.S. District Court, and the U.S. Immigration Court. In addition to conducting comprehensive investigations, he has testified in both civil and criminal cases.  Marc has become the "go-to" person for numerous clients who rely on his expertise, efficiency and experience in dealing with sensitive investigations. 


Previously, he served over 20 years as a police officer in Southern California, retiring at the rank of police sergeant.  He draws on that experience to offer his clients actionable private sector investigations through all phases of litigation in civil, criminal and corporate cases throughout the State of California. In addition, he has built a network of investigative professionals and experts throughout the U.S. that can assist his clients with their investigative needs. His agency is fully insured and licensed by the California Bureau of Security and Investigative Services ("BSIS") under PI License #28059.


Professional Affliations:

  • Member of the California Association of Licensed Investigators ("CALI")
  • Member of the California Defense Investigators Association ("CDIA")
  • Member of the Professional Investigators of California ("PICA")
  • Member of the San Diego County Bar Association ("SDCBA")