Sonntag Reporting Service, Ltd., has provided Reporting expertise in the Northern Illinois area for over 35 years. Networking welcome! Whatever your reporting-related needs in Chicagoland, metropolitan or suburban, Sonntag Reporting Service, Ltd., can help you achieve your goals, whether through our instantly accessible realtime services, transcript delivery on your clients schedule, videotaping and videoconferencing, document procurement, complimentary conference rooms, friendly and efficient office staff, or our highly credentialed court reporters experienced in technical, medical, and patent litigation.