ZS

Founded in 1983 by Andy Zoltners and Prabha Sinha as a healthcare consulting firm, ZS has grown into a global management consulting and technology company headquartered in Evanston, Illinois. It combines consulting, data science, analytics, software and AI to help organizations improve business and healthcare outcomes.

ZS works primarily with life sciences and healthcare organizations across the product lifecycle, including clinical development, commercialization, market access, customer engagement and technology transformation. Its work ranges from strategy and operating-model design to implementation through proprietary platforms such as ZAIDYN.

The firm is especially strong where healthcare-domain expertise meets quantitative analysis: commercial strategy, sales and marketing effectiveness, payer and access strategy, real-world evidence, clinical-trial modernization and AI-enabled workflows. For students, internships are structured around live client projects and can lead to full-time opportunities after graduation.