Complex sentence: The current holding company, The Instrumentalist Publishing Co., is an Illinois corporation, based in Northfield, Illinois, and headed by James (Jim) T. Rohner (born 1940), President.
Split into simpler sentences: The current holding company, The Instrumentalist Publishing Co., is an Illinois corporation. The holding company is currently based in Northfield, Illinois, and headed by James (Jim) T. Rohner (born 1940), President.