• Call us with your California cases. Free consultation. 866-392-0072
  • The San Francisco Bay Area is our stomping ground.

San Francisco Private Investigator
California Private Investigator

San Francisco, California private investigation firm, Filley and Associates provides cost efficient, aggressive, results oriented investigation services. We are uniquely qualified to provide the range of services required of an investigative firm in today's environment.  Our staff of professional San Francisco private investigators know the Bay Area inside and out.  Our years of experience and connections are an integral part of our success.

We are also a California Private Investigation firm, providing investigative services in the San Francisco Bay Area and California wide. Our staff is composed of highly qualified investigators and educated individuals, who have excellent people and organizational skills. We find that many cases require not only a thorough investigation, but organizational insight and abilities as well. Filley and Associates has that in-depth knowledge to provide thorough and reliable investigative services to corporations, financial institutions, law firms, insurance companies, and consumers worldwide. We handle direct, hands-on investigation and major case management. We use the latest database and information systems to enhance the investigative process.

San Francisco Investigations

Our offices in San Francisco and San Rafael, Marin serve the San Francisco Bay Area and Northern California. Over the years, we have conducted investigations and surveillances at many of the hotels, restaurants, venues and businesses in the San Francisco Bay Area and most of the venues in San Francisco itself. Let our experience as San Francisco detectives work for you.

California Investigations

We conduct civil investigations and criminal investigations throughout California. We are centrally located in the SF Bay Area, close to the the Napa Valley Wine Country and the Sacramento Valley. Our California detectives and in-depth contacts and resources allow us to conduct investigations throughout California. If you are looking for a California investigator, please give us a call for a free consultation.

US Investigations

We conduct civil and criminal investigations nationwide, both in person and through proven, professional associates in other jurisdictions. Our nationwide resources allow us to conduct effective investigations throughout the United States. If you are looking for a US investigator, please give us a call for a free consultation.

China Investigations

We conduct investigations in China with the help our our partner, Zhong Yang Services at ChinaInvestigator.com, a fully registered and certified investigation company in China. Zhong Yang has deep experience in conducting investigations in China. Together with our partner, we are able to provide the highest level of client service, accountability, attention to detail and responsiveness among China private investigation firms.  Please go to our China PI page for more information about the services offered by Zhong Yang Services.

Regarding US Investigations, please allow us the opportunity to discuss your specific needs with you. We are confident you will agree, we are the best choice for your investigative and case development needs. For a free consultation, please call us toll free at 866-392-0072 (+01-415-462-1631 from outside the US) or email us at This email address is being protected from spambots. You need JavaScript enabled to view it..


Our clients include major law firms, news organizations, law enforcement and corporations. Most clients choose to keep their identities completely confidential. The testimonials of some are listed here with permission:


Scott Filley, with 23 years experience as an investigator is a former Governor of CALI's San Francisco district. CALI (California Association of Licensed Investigators) is the largest association of private investigators in the world.

california pi License No. 23042 Nevada License No. 1000