The National Institute of Neurological Disorders and Stroke (NINDS) Parkinson's Disease Biomarkers Program (PDBP) brings together multiple stakeholders dedicated to research and discovery that will advance diagnostic and progression biomarkers for Parkinson's disease. This stakeholder group includes basic and clinical researchers, healthcare professionals, NINDS program staff, information technology experts and most importantly, people with Parkinson's disease and their families and friends. Together, through the sharing of information and resources, we will accelerate the pace of PD biomarker discovery.