California’s Leading Private Investigation Firm! Serving all of Southern California Including Orange County, Los Angeles County, Riverside County, and San Diego County!

All services in one place

A Few of Our Specialties

Criminal Defense

A criminal investigator looks for clues and evidence to determine whether a crime has taken place. If a crime has been committed, investigators may look into the background of the accused and try to uncover who committed the crime.


Do you suspect that your spouse is having an affair? Do you have concerns about a potential business partner? Do you need help investigating a possible case of insurance fraud? If so, the San Antonio private investigators at Amatrix Investigations can help put an end to your doubts.

Background Investigations

Background checks are important sources of information for a variety of reasons. Amatrix Investigations has extensive database resources and field investigators that enable us to prepare the most current and up-to-date information. Background checks differ dramatically from pre-employment screenings.

Injustice anywhere is a threat to justice everywhere.

Martin Luther King, Jr.

Let Our Experience Be Your Guide

The team at Amatrix Investigations, has been offering domestic and international private investigation services to individuals, government agencies, businesses and law firms since 1989. Our firm employs licensed private investigators who have worked for state law enforcement agencies, federal law enforcement bureaus, various branches of the U.S. military and large corporations.

Whether you suspect that your spouse is having an affair or you need to order a background check on a potential employee, you can turn to the private investigators at Amatrix Investigations, for the help you need. We are experts at uncovering the truth. We serve clients both domestically and internationally from our Regional offices listed below and our team is led by one of the most prolific and experienced investigators within the PI profession.

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Phone: (213) 342-1767
Hours: 24/7