Get Tangible Results from Dedicated Professionals
Cullen Investigations is a licensed and bonded private detective agency based in Tulsa, Oklahoma. For over 20 years, our team has earned a reputation for delivering measurable results through dedicated, effective, honest work.
We are a diverse group of investigators – including former military personnel, law enforcement, and journalists – trained in a variety of tactics and proprietary tools to gather intelligence.
Founded by Eric Cullen, the agency’s genesis began in 2001 when Eric’s best friend died senselessly and tragically while in police custody. It was at this moment that he became acutely aware of the injustices that plague our legal system.
The son of a respected homicide detective, Eric originally thought he would become a cop. But in the wake of his friend’s death he realized he could make a bigger difference on the outside as a private detective. In 2005, he launched Cullen Investigations.
Since then, the agency has blossomed into a full-service investigations firm that’s one of the most respected in the country.
Over his career, Eric has helped to free multiple innocent men and women who were wrongfully convicted of murder. He did much of the legwork that led to Governor Stitt’s mass commutation of 523 non-violent offenders on November 1, 2019 – the largest single-day commutation in U.S. History.
Eric also worked with the Innocence Project and collaborated with music executive and criminal justice advocate Jason Flom. He and Flom co-founded the nonprofit Another Chance Justice Project, which provided pro-bono post-conviction assistance to excessively sentenced non-violent female offenders.
Various media outlets praised and noted his work, including The Washington Post, Dateline, and the New York Times.
