Browse the Top Private Investigators Serving Tarzana, CA

Observant Security/Investigation Services established 1981 providing full field services to it's customers throught the State of California, Nationwide and around the World. When the successful resolution and closure of your most sensitive case relies on information; YOU deserve and MUST therefore DEMAND the BEST. Our dedication to ongoing education and training along with the use of the state of art technology, ensures that we get the job done right and in timely manner.

Dakota Michaels Investigations provides comprehensive private investigation services including background checks, missing persons searches, corporate investigations, and cyber security solutions. With over 20 years of experience and a team of licensed professionals, we deliver discreet, legally compliant investigative services to individuals, law firms, and corporations across the United States and internationally.

Los Angeles Process Server provides professional legal document delivery services throughout Los Angeles County and California. Our core services include process serving with unlimited attempts, court filings, and investigative services. We specialize in delivering summons, subpoenas, restraining orders, and eviction notices with guaranteed compliance and timely execution.

Empire Pacific Investigative Services delivers expert private investigation services across Los Angeles Metro, specializing in infidelity cases, asset research, background checks, and corporate investigations. Founded by seasoned federal agents, we combine decades of law enforcement experience with cutting-edge technology to uncover critical information. Our client-centric approach prioritizes discretion, reliability, and actionable intelligence to meet legal, personal, or business needs.

Public Interest Investigations, Inc. specializes in neutral workplace, Title IX, and human rights investigations for corporations, public agencies, educational institutions, and law firms. With over 40 years of experience, our trauma-informed approach uncovers factual truths in sensitive cases, including sexual harassment, discrimination, and civil rights violations. We combine legal expertise with investigative rigor to support clients globally.

Litigation Advantage provides expert private investigation and litigation support services, specializing in criminal defense, civil litigation, workplace investigations, and class action plaintiff identification. Our legally trained team delivers evidence-based solutions for attorneys, businesses, and government agencies. With licenses in California and Tennessee, we combine investigative rigor with legal insight to resolve complex cases.

Investigative Consultants specializes in intellectual property protection through undercover investigations, cyber intelligence, and law enforcement collaboration. We combat trademark counterfeiting and piracy globally while providing training to agencies worldwide. Our proven expertise has secured billions in seized counterfeit goods and resolved complex corporate theft cases.

Applied Facts is a global investigations firm specializing in internal investigations, due diligence, cyber forensics, and litigation support. Since 2008, we have provided actionable intelligence and strategic clarity to clients across 178 countries through a multidisciplinary team of veteran investigators and forensic experts.

Parrent Smith Investigations provides expert private investigation services including asset location, background checks, and litigation support. Specializing in complex cases, we assist clients in uncovering critical information for legal, corporate, and personal decision-making. Our team combines decades of experience with ethical practices to deliver reliable, actionable insights.

KMI Inc is a full-service investigative agency serving law firms, corporations, and private clients in Southern California. Specializing in asset searches, surveillance, background checks, and legal research since 1968, we deliver precise investigative solutions within legal frameworks. Our team of experienced professionals combines traditional methods with advanced forensic technology to resolve complex cases efficiently.