Provider of professional healthcare services in the United States. The company offers biomedical research support services to the health sciences market in the areas of HIV/AIDS, environmental health, public health preparedness, and mental health. It engages in the design and implementation of public health and social programs that address population issues, reproductive health, HIV, infectious diseases, and maternal and child health. In addition, it provides strategic consulting, clinical trials, data management and statistics, pharmacovigilance, medical writing, and medical services for pharmaceutical and biotechnology clients. Further, the company offers research and evaluation, communications and social marketing, policy development, program management and support, strategic consulting, technology, and clinical research and regulatory services.