Forty years
digging up the truth.
Top Dog Private Investigators, LLC is a California-licensed investigative firm. Our team brings more than four decades of investigative experience — licensed and actively working cases since 1986 — to every assignment. Our practice is built for one purpose: to produce investigative work that holds up in a courtroom, in a claims file, or in a sensitive personal matter.
Over four decades, our firm has supported insurance defense attorneys, carriers, claims professionals, criminal defense counsel, and private clients across Southern California. Every assignment is handled personally by an experienced investigator with the discipline to document cleanly and the judgment to bring the matter home without drama.
When a matter reaches beyond California, we draw on a network of vetted affiliates across the country — investigators selected for the same standards we hold ourselves to. Our work is bilingual in English and Spanish, and confidential by default.
- CA PI License #28279
- Certified Private Investigator
- California Association of Licensed Investigators (CALI)
- Texas Association of Licensed Investigators (TALI)
- Florida Association of Licensed Investigators (FALI)
- Professional Private Investigators Association of Colorado (PPIAC)
- Bilingual — English & Spanish
Professional Affiliations & Certifications
Paul Mason — Founder & Lead Investigator
Paul Mason has been immersed in investigative work since 1986. He founded Top Dog Private Investigators after decades in the field, and remains active as the firm's lead investigator. A Certified Private Investigator and member of CALI, TALI, FALI, and PPIAC, Paul has built a reputation for meticulous fieldwork, clear reporting, and testimony that stands up under cross-examination.
Bilingual in English and Spanish, Paul continues to personally direct every case the firm accepts — setting the standard our team and affiliate network work to on every file.
