The Society for Neuroscience (SfN) is a nonprofit membership organization of scientists and physicians who study the brain and nervous system. Since its inception in 1969, the Society has grown from 500 members to over 40,000. Today, SfN is the world's largest organization of scientists and physicians devoted to advancing understanding of the brain and nervous system.

The Society for Cognitive Rehabilitation (SCR) is a nonprofit, multidisciplinary, organization committed to the advancement of cognitive rehabilitation therapy across the globe.

American Brain Coalition is an organized professional neurological, psychological, and psychiatric associations and patient organizations working together to advance the understanding of the functions of the brain, and to reduce the burden of brain disorders through public advocacy.

American Congress of Rehabilitation Medicine serves people with disabling conditions by promoting rehabilitation research and facilitating information dissemination and the transfer of technology.

National Association of State Head Injury Administrators assists state government in promoting partnerships and building systems to meet the needs of individuals with brain injury and their families.

National Hispanic Medical Association is a non-profit association representing the interests of 45,000 licensed Hispanic physicians in the United States. NHMA is dedicated to empowering Hispanic physicians to be leaders who will help eliminate health disparities and improve the health of Hispanics. NHMA's vision is to be the national leader to improve the health of Hispanic populations.

North American Brain Injury Society is comprised of professional members involved in the care or issues surrounding brain injury. The principal mission of the organization is moving brain injury science into practice. Whether it is in the area of clinical care, research, policy or litigation, the organization stands behind the premise that advances in science and practices based on application of the scientific evidence will ultimately provide the best outcomes for those with brain injuries and the community as a whole.