Quintiles Transnational Holdings Inc. is a provider of biopharmaceutical development services and commercial outsourcing services. The Company is engaged in the development and commercialization of pharmaceutical therapies. The Company's segments include Product Development and Integrated Healthcare Services. Its Product Development segment is a contract research organization and is focused on Phase II-IV clinical trials and associated laboratory and analytical activities. The Product Development segment consists of clinical solutions and services, and advisory services. The Integrated Healthcare Services segment includes commercial pharmaceutical sales and service organizations, and provides services, including commercial services, such as contract pharmaceutical sales forces, and healthcare business services for the healthcare sector, such as phase research, market access and consulting, health information analytics and technology consulting, and other healthcare solutions.