We are Platinum Key Investigations, a respected Private Investigation Firm based in Marietta/Atlanta, Georgia. With years of experience, our licensed, bonded and professional investigators are here to help. Our team boasts over a decade of combined experience in investigations, polygraph examinations, process serving and security. Bottom line, we’re well equipped to handle most types of cases that come our way. Get in touch to schedule your initial free consultation today. Our base prices are out on our website and start at ONLY $69.00 flat fee ANYWHERE in Cobb County. Specials for first time clients. All service of process orders are completed by a licensed and bonded Private Investigator and include a signed and notarized affidavit, if needed.