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Best Private Investigators in Fresno, CA

Our Recommended Top 4

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Our goal is to connect people with the best local professionals. We scored Fresno Private Investigators on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.



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featured provider = Featured Provider

5430 N Palm Avenue Suite 110, Fresno, CA 93704 Rating

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5.0 (20)

Why choose this provider?

Atlantis Private Investigations is an investigation firm in Fresno, California. The business was founded in 2010 as a partnership between an investigator and a trial attorney. The firm's services include civil and criminal investigations, missing persons, financial crimes, insurance fraud, child support cases, and personal background checks. All facts obtained need to have multiple sources, interviews need to be recorded or witnessed, and eyewitness accounts need to be supported by photographic or video evidence.

Fresno, CA 93730

Why choose this provider?

Oliver, Thomas & Pierce Investigations has been serving private, corporate, legal customers for more than 40 years. The company offers a range of professional services for every customer's needs, including pre-employment screenings, workplace issues like harassment and fraud, and worker's compensation, as well as specialized areas like crop loss claims, trial defense preparation, and witness location. The company's website features important forms that customers can download and fill out in cases of vehicle accidents, general liability, and AOE-COE investigations and a virtual claims adjuster portal for customer convenience. Prospective customers can call or email the company to schedule a consultation.

Fresno, CA 93711

Why choose this provider?

Richard K. Jones is the owner and Lead Investigator of Dependable Investigations and has decades of experience as a detective, investigator, and patrol officer. The company offers a range of services backed by an in-depth knowledge of local, state, and federal laws and procedures, beginning with a thorough consultation to determine each customer's needs. Investigation services include employee and tenant background checks, corporate internal investigation, worker's compensation cases, and in-depth security inspections. The company also provides professional services for attorneys in criminal matters, including witness location, interviewing, and interrogation, courtroom presentation, and case investigations. Customers can contact the company on the website to schedule a consultation.

Fresno, CA 93727

Why choose this provider?

Strategic Investigative Services is a team of experienced investigation and security experts dedicated to providing the highest quality of service. The company's founder is a seasoned investigator with an extensive background in law enforcement and crime scene investigation, giving customers assurance that every case will be handled with professionalism, discretion, and expertise. The company's private investigation services are ideal for cases like criminal defense, identity theft, and cold cases, as well as missing person cases involving issues like fugitives, runaways, and witnesses. The company also provides expert civil litigation support services like background investigations, witness statement gathering, and photo and video evidence collection.

Compare our Top Private Investigators

NameExpertise RatingAddressPromotionsLearn more
Atlantis Private Investigations
5430 N Palm Avenue Suite 110, Fresno, CA 93704
Oliver, Thomas & Pierce Investigations
Fresno, CA 93730
Richard K. Jones
Fresno, CA 93711
Strategic Investigative Services
Fresno, CA 93727


  • Introduction

    Some cases grow cold without ever getting solved by the police, and others tend to be too unorthodox for the police since they're mainly limited to criminal cases. This is where private investigators come in.

    Private investigators, also known as PIs, offer a wide range of services, including finding missing persons, tracking marital infidelity, investigating theft, running background checks, verifying insurance claims, and collecting debts on behalf of their clients.

    PIs work on any case requiring extensive research and investigation. Their duties range from gathering vital facts and connecting clues to providing conclusive information regarding the case.
  • What is a private investigator?

    Private investigators are experienced individuals hired to carry out detective work. They are fact-finding experts who dedicate time and effort to gather evidence and reveal information that would be difficult to gain through ordinary means. Private investigators can either operate alone or work for an agency.

  • Are private detectives real?

    Yes, private investigators are real. They provide their expertise to anyone who needs an in-depth investigation for an important matter. Whether tracking a long-lost loved one, running background checks, finding missing persons, or conducting general research, private detectives operate with discretion and rarely make the news.

  • What do private investigators do?

    PI work involves a lot of information gathering and fact analysis. Their field assignments involve carefully following persons of interest, conducting surveillance, interviewing people, and, sometimes, going undercover to get more information. They use GPS tracking devices, video recorders, computers, and other technology to collect information.

  • How do private investigators work?

    Private investigators’ ability to conduct examinations and close cases without their targets knowing their involvement makes them very effective. A PI firm may have different personnel, each specializing in a particular field. From computer experts to web-data analysts and field officers, these agents work together to solve cases or complete an objective.

  • What is a private investigator allowed to do?

    PIs are civilians, so they're required to operate within the confines of the law. Private investigators search multiple online databases, public records, and open source files to collect information. However, they cannot bug phones or hack into online accounts to acquire protected information. They can conduct surveillance on people in public places, but they can't trespass into their homes or property.