Private Investigator San Francisco Bay Area

We are a licensed private investigation firm serving the San Francisco Bay Area performing legal investigations and specialized research. We offer the unusual ability to combine street-level investigations with sophisticated database, technological and subject-specific resources to provide an outstanding variety of investigative services.

We have expertise in the follow types of investigations.

Legal Investigations: personal injury; civil/probate; criminal defense; trial preparation;
Business & Entities: workplace investigations; fraud; background/due diligence investigations;
Insurance Investigations
General Investigations: background investigations; missing persons, fraud investigations;
Specialized Research & Investigations: public records research; historical; genealogical; science/technical; quantitative/statistical; Internet investigations

As an investigator Charles Pfister is as good as they come. Charles has worked with my firm consistently over the last 16 years on many high profile and complex cases. Simply stated, he is our go-to investigator. In applying his craft, his work ethic, reliability, attention to detail and professionalism have repeatedly proven instrumental in advancing our cases to trial along with numerous multi-million-dollar settlements.

— Plaintiff Attorney, San Francisco, CA

Charles Pfister is extremely thorough and diligent in researching information using up-to-date technology to get the right answer quickly and efficiently. We have worked together on a wide range of cases, from white collar criminal defense cases to probate litigation. I’ve worked with other, competent investigators but Charles is always my first choice.

— Civil/Criminal Defense Attorney, Palo Alto, CA

Thank you very much for your very able, professional, and very helpful work on locating almost 100 victims — many of whom were indigent and homeless — in a class action lawsuit that resulted in a quarter-million-dollar judgment for the lead plaintiff.

— Civil Rights Attorney, Northern California

Thanks again for all of the tremendously thorough work you’ve done. You investigate exactly how I would, or I imagine I would, you just keep going and going and pulling and pulling. Thanks.

— Criminal Defense Attorney, San Mateo, CA

For the past seven years, Charles Pfister’s private investigation services have been invaluable to my estate planning practice. Charles helps me locate missing heirs in probate matters. For one client Charles compiled a detailed dossier on alleged So Cal tenants subleasing their units and actually living in Guatemala, Mexico City, Lake Tahoe, and Nevada. Charles’s incredible work paved the way enable my client to sell his apartment building for top dollar.

— Probate Attorney, San Francisco, CA

Charles Pfister is an intelligent, discrete, kind PI who has helped me in my journalistic research.

— Author, winner of National Book Award