The Sellers Investigative Group is an independent full service investigative agency serving the the State of California with offices in Northern and Southern California. We provide professional advice, court proven expert witnesses and professional investigative services to private parties, employers, third party administrators, law firms, self-insured companies, and to corporations at large throughout the State of California with a network of associates nationwide to assist our investigators in any state in the US. We focus our investigation efforts in the San Francisco Bay Area, Sacramento Metro, Los Angeles Metro and surrounding areas. We also specialize in servicing the rural mountain and valley regions of California.

The Sellers Investigative Group is comprised of private sector investigators, law enforcement veterans, and insurance industry professionals, all with 25 years or more experience, most of which have held the position of Detective, Investigator, Adjuster or Examiner during their career tenure throughout the State of California.

We are known by our colleagues, clients and former employers as investigator's who can, "get the job done" when no one else can. We feel confident in our ability to produce quality results in any environment.


C.W. SellersSIG is a culmination of C.W.'s personal dream following his career in law enforcement and tenured service as an investigator in the private sector. SIG is a full service investigative agency that is built on four key concepts; Integrity, Professionalism, Discretion and Dedication. Our mission is to build the investigative industry by raising the quality bar to its highest level in decades.

SIG utilizes the highest quality and most effective investigative talent available in the industry today and up-to-date investigative techniques and technologies to "Reveal the Truth" contained within each and every case we work. Our tenacity for producing a thorough and accurate work product that clearly defines the facts revealed during the process of every investigation we conduct.

Contact Information

Contact us today for a free consultation on your case or with any questions you may have about our services. We are here to assist you in all matters of concern, business or personal.

Northern California

4120 Dale Rd., Ste J-8 #177
Modesto, CA 95356


Southern California

Encino, CA 91432


Investigators on Duty

24 Hours a Day
7 Days a Week

Services Provided

Investigator | Detective | Private Investigator | Insurance | Fraud | Crime | Criminal | Theft | Embezzlement | Surveillance | Sub Rosa | Interviews | Statements | AOE/COE | Subrogation | ASIS | CALI | NCFIA | NCISS | BSIS | Crime Scene | Covert | Human Trafficking | Workers’ Comp | Undercover | Personal Injury | Accident | Traffic Accident | Backgrounds | Trial Prep | Video Interview | Recorded Interviews | Harassment | Workplace Investigations

Se Habla Español

American Sign Language Interpreters Available