Testimonials: Insurance Defense Investigations
“API (Advanced Professional Investigation) is the best surveillance company in the Nation.  They are very responsive, professional, efficient and diligent!  They always keep the lines of communication open at all times.  I always receive my reports in a timely manner.  And no matter what the outcome is they produce results.  Their expertise is Amazing! I would highly recommend API to any organization!”

– T.C. , Worker’s Compensation Case Manager


“Many of my clients have used API’s surveillance services for several years. API’s investigators have proven highly capable of returning a quality product. I have always been impressed with the professionalism and results received from the investigators and staff.”

– Steven J. Picardi, Esq. Picardi Law Firm


“I have used API for a couple of years now, and I have been pleased with the service I’ve received. I always get a prompt response to any request I submit.”

– Zach, Liberty Mutual Insurance

Call us today 720-933-9301

220 S. Wilcox St, #654, Castle Rock CO 80104
3800 Buchtel Blvd., #100383, Denver, CO 80210