Chiesi USA, Inc. | 28,189 followers on LinkedIn. International Pharmaceutical Group Certified B Corp | Chiesi USA, Inc., headquartered in Cary, N.C., is a specialty pharmaceutical company focused on commercialization of products for the hospital, rare disease and target office-based specialties. Our employees take an entrepreneurial approach to meet the evolving needs of our customers. As a Public Benefit Corporation, Chiesi USA is committed to operating as a good corporate citizen; positively impacting communities in which we live and serve.