1st Class PI is a professional private investigation firm based in the Denver, Colorado area, serving clients nationwide. We specialize in complex locates, witness interviews, accident investigations.

1st Class PI – Private Investigation Services Based in the Denver, Colorado area, 1st Class PI provides professional, discreet, and results-driven investigative services nationwide. We specialize in difficult locates and skip tracing for legal professionals, as well as individuals seeking to reconnect with long-lost friends or family members. Our firm supports law firms with witness interviews, backed by certified forensic interviewing training and Certified Criminal Defense Investigator crede...

1st Class PI – Private Investigation Services Based in the Denver, Colorado area, 1st Class PI provides professional, discreet, and results-driven investigative services nationwide. We specialize in difficult locates and skip tracing for legal professionals, as well as individuals seeking to reconnect with long-lost friends or family members. Our firm supports law firms with witness interviews, backed by certified forensic interviewing training and Certified Criminal Defense Investigator credentials. We also perform accident investigations and reconstructions, with a court-qualified expert witness on staff. Services Include: Skip Tracing & Difficult Locates Witness Interviews & Legal Investigations Accident Investigations & Reconstruction Surveillance (Local Services) Nationwide Background & Research Services At 1st Class PI, we are committed to accuracy, professionalism, and confidentiality—delivering first-class investigative results when they matter most.