Southeast Regional Research Group We are one of four medical research sites affiliated with SERRG, Inc., headquartered in Columbus, Georgia. With additional sites in Ludowici, Rincon and Savannah, Georgia, we work with a network of hospitals, healthcare clinics, and inpatient and outpatient-based physicians in our mission to provide compassionate medical care and research that decreases costs, improves quality and helps bring medical products to market sooner.