MARC A. GARZA

President & CEO of Operations

CA. Licensed Investigator

Police Sergeant (Ret.)

​​

Marc is a seasoned investigative professional with more than three decades of combined law enforcement and private investigative experience. As the Founder and Chief Executive Officer of GRI Investigative Group, he leads a team of experienced investigators and legal support professionals who provide comprehensive litigation support and investigative services to law firms, corporations, and private clients throughout California.

​

Marc began his career in law enforcement, where he served for over 20 years and retired at the rank of Police Sergeant. During his tenure, he held a wide range of assignments that provided him with extensive operational and investigative expertise. His experience includes patrol operations, Field Training Officer (FTO) supervision, criminal investigations, tactical assignments, firearms instruction, and police supervision. He also served in specialized units, gaining firsthand experience in high-liability and complex investigative matters.

​

After retiring from law enforcement, Marc transitioned his expertise into the private sector by founding GRI Investigative Group. Under his leadership, the firm has built a reputation for professionalism, discretion, and strategic investigative support. He oversees and directs a coordinated team approach, ensuring each case benefits from detailed research, field investigation, legal analysis support, and thorough documentation tailored to the needs of counsel and corporate clients.

​​​

With over 30 years of investigative and law enforcement experience, Marc continues to provide leadership, credibility, and strategic oversight to every matter handled by GRI Investigative Group.