The National Bone Marrow Transplant Link (nbmtLINK) provides support and resources for patients, caregivers, and families dealing with the challenges of bone marrow and stem cell transplants, including chronic graft versus host disease.

The National Brain Tumor Society supports individuals affected by brain tumors through personalized navigation, advocacy for research funding, and community-building events.

The National Breast Cancer Coalition advocates for breast cancer research and policy change, aiming to end breast cancer through education, training, and public policy initiatives.

The National CFIDS Foundation is dedicated to funding research and providing information, education, and support for individuals affected by chronic fatigue and immune dysfunction syndrome (CFIDS).

The National Captioning Institute provides captioning, subtitling, and audio description services to support individuals who are deaf or hard of hearing, enhancing their access to auditory and visual information.

The National Center for Learning Disabilities advocates for equitable policies and supports individuals with learning disabilities through research and community engagement.

The National Center on Deafblindness (NCDB) supports state projects for children and youth who are deafblind, providing resources and training to educators and families to improve educational outcomes and quality of life.

The National Cervical Cancer Coalition (NCCC) is a nonprofit organization that provides information and support for individuals and families affected by cervical cancer and HPV disease, focusing on education, prevention, and advocacy.

Cancer Nation advocates for quality cancer care for all individuals affected by cancer, providing resources and support for cancer survivors and their caregivers.

The National Council on Disability advises public policy to address the concerns of people with disabilities and has played a key role in the enactment of the Americans with Disabilities Act.

The National Deaf Children's Society supports deaf children and their families by providing resources, advice, and campaigning for better services and support in the community.

The National Disease Research Interchange (NDRI) is a not-for-profit organization that provides human organs and tissues from a diverse pool of donors to support biomedical research.

The National Down Syndrome Congress (NDSC) advocates for the rights and interests of individuals with Down syndrome, providing education, awareness, and support to empower families and communities.

The National Down Syndrome Society (NDSS) advocates for the rights, health, and well-being of individuals with Down syndrome.

The National Eczema Association provides support, resources, and advocacy for individuals affected by eczema, focusing on education, treatment options, and community engagement.

The National Federation of Families advocates for families affected by mental health and substance use disorders, providing support, resources, and technical assistance to enhance family well-being.

The National Foundation for Ectodermal Dysplasias (NFED) is dedicated to supporting individuals affected by ectodermal dysplasias, providing resources, advocacy, and funding for research related to these inherited disorders.

The National Gaucher Foundation empowers Gaucher patients through financial support, educational programming, and collaboration with medical professionals.

The National Headache Foundation advocates for individuals affected by headache disorders, providing resources for education, access to care, and support for patients and healthcare providers.

The National Alliance for Care at Home advocates for home health care, providing resources, education, and a network for home health, hospice, palliative, and home care professionals.