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Premier Private Investigators in Los Angeles, CA

Since 1991, ATB Investigations has been the cornerstone of private investigation in Southern California. We specialize in a range of sensitive investigative services.

Why Choose ATB Investigations?

Experience You Can Trust

With over three decades as leading private investigators in Los Angeles, CA, our expertise is unmatched. Our roots are deeply embedded in the local community, providing us with unique insights and an extensive network to effectively handle your concerns.

Diverse Expertise

From tackling complex cases of insurance fraud to conducting thorough infidelity investigations, our team's capabilities cover a wide spectrum of needs. ATB also boasts membership in the California Association of Licensed Investigators.

Personalized Service

We understand the delicate nature of our work, especially when it involves sensitive issues like infidelity investigations. Each case is handled with the utmost care and tailored to the unique needs of our clients.

Free Initial Consultations

Start with a no-obligation consultation to explore how our private investigators can assist you in uncovering the truth with precision and discretion.

Our Specialties

Infidelity Investigations

Trust is the foundation of any relationship, and suspecting a partner of infidelity can be distressing. ATB Investigations approaches these cases with acute sensitivity and absolute discretion, ensuring you receive clear and conclusive results. Our private investigators are experts in navigating these complex emotional landscapes.

Insurance Fraud Investigations

Insurance fraud poses significant challenges to businesses and individuals alike. ATB Investigations utilizes state-of-the-art technology and investigative techniques to expose fraudulent activities and provide you with detailed evidence to support your claims.

Our Legacy

Founded by Anita Tourisia, a former LAPD Undercover Unit informant, ATB Investigations embodies a rich history of investigative excellence. Anita's diverse background as a child singer-actress from Indonesia and her innate ability to blend in have profoundly shaped our agency's strategies and effectiveness in private investigations.
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Testimonials

Our dedication to serving the community as private investigators has significantly impacted our clients' lives. These testimonials reflect the trust placed in us and the peace of mind we provide.

Sample Photos

Visit our Surveillance page for photo excerpts of our investigative work. All images are authentic, taken from actual cases, and altered accordingly to protect the subjects’ identities.

A Word from Our Owner

My name is Anita Tourisia, and I worked as an informant for the LAPD Undercover Unit in 1974. I was a child singer/actress in Indonesia from 1966 to 1974, prior to relocating to the United States. My acting ability enables me to “blend in” in every situation and location. I trained many surveillance operatives during the early years of my investigation career, ranging from 1991 to 1996. My ability to find information has earned me the following phrase: “Anita can sell snow to eskimos.”

Get in Touch

Embark on a journey toward clarity and resolution. Contact ATB Investigations, your trusted private investigators, for a free consultation. Let us tailor a strategic investigative approach to your specific situation, offering support and guidance every step of the way.
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