Welcome to Excell Investigations

Affiliated offices located nationwide.

Welcome to Excell Investigations, we provide competitively-priced professional private investigation services throughout Southern California. In business since 1992, we have decades of experience providing the Greater Los Angeles area with high-quality investigation services, including surveillance, locating, skip tracing, process serving, background check, polygraph testing, asset search, record search, and more. All of these services are provided by highly experienced and fully qualified private investigators/detectives and process servers, who are all very knowledgeable, discreet, and detail oriented. With each and every case, our investigators focus their efforts on each client's specific goals. With our highly skilled and dependable team, competitive rates, and 24/7 availability, it's no wonder that we have 1,000s of satisfied clients and an A+ rating with the Better Business Bureau.

Private Investigator Serving Downey, Los Angeles, Long Beach, Pasadena,
Orange, Tustin, and the Surrounding Area

At Excell Investigations, our private investigators are licensed by the California Bureau of Security and Investigative Services (BSIS). While all of them have years of direct, on-the-job experience, some of our investigators also have past work experience with law enforcement, the military, and/or state or federal investigative departments. Whether we're investigating marital infidelity for a concerned spouse, conducting covert surveillance for a business, or serving court documents on behalf of a law firm, our investigative agency aims to deliver the highest level of customer service. We take the time to tailor our investigative programs to accommodate a wide range of needs, concerns, deadlines, and budgets. We rely on the best investigative technology and techniques, and comply with the industry's leading standards for surveillance, locating, records search, and process service. Additionally, because we have access to an extensive national records database and large network of licensed investigators, we also have the capacity to pursue some cases that go well beyond Los Angeles.