The Right Solution. Established in 2005 Unity One East, Inc. (formerly PCI) has its main base in Chattanooga, Tennessee. Unity One East, Inc. offers a full complement of investigative and security services, including, but not limited to; private investigations, surveillance, background checks, both onsite and remote security, security officers, and process serving. Our goal is to give our clients the very best service available to protect and secure their family and business from those who intend to cause them harm.