
Can’t find the answers that you’re looking for? Contact one of our private investigators in your area that conducts investigations to get you the information you need. At Advanced Investigative Services, Inc, we provide a variety of investigations to those in Clay, Illinois, and the surrounding areas. Established in 1996 and run by a former state police captain, our team is made up of experts from local, state, and federal agencies that offer over 100 years of combined experience in investigative services covering:
Those in the Clay, Illinois, area know to contact our private investigators for quality, professional, and thorough investigations. We offer a variety of personal, business, and professional investigations to our clients in the local community. Our extensive list of personal investigations includes pre-marital background checks, divorce investigations, missing-person searches, and more. Business and professional investigations that we can conduct range from pre-employment screenings and background checks to workers’ comp claims, pre-trial investigations, process services, and so much more. We employ specialists from a variety of fields to ensure the accuracy of our investigations!


Are you looking for a private investigator on behalf of your local business or to conduct a personal investigation? Advanced Investigative Services, Inc has been the leader in investigative services in Clay, Illinois since 1996. We have a team of professional and experienced investigators with the right skill set to handle any type of investigation that you could require. Whether you are in search of a missing person, want to run a background check on a potential employee, or need video surveillance, you can count on Advanced Investigative Services, Inc.