ZS

ZS is a privately owned management consulting and professional services firm, headquartered in Evanston, Illinois, US. Established in 1983 and employing approximately 21,570 individuals, the company focuses on consulting, software, and technology, providing healthcare, private equity, and technology services. Its origins trace back to its founders, two Northwestern University professors who developed sales force alignment models utilizing the world's first personal-computer-aided territory mapping system.