Where is your company located? Saturday, September 14th, 2019 //All CLI offices and call centers are located in the United States. CLI’s corporate headquarters and primary call center are located in Portland, Oregon. We also operate a second call center in Phoenix, Arizona. See other recent newsPost navigation What do I need to do to begin using your telephone interpreting services?Conversations with our clients/patients are highly confidential. How do we know that this information remains private?