| Living Beyond Breast Cancer (LBBC) | X | X | | | | | | | Helpline, webinars, survivor-led programming | https://www.lbbc.org |
| Breast Cancer Research Foundation (BCRF) | X | | | | X | | | | Largest private funder of BC research | https://www.bcrf.org |
| Breast Cancer Alliance | X | | | | X | | | | Focus on underserved communities & fellowships | https://breastcanceralliance.org |
| National Breast Cancer Foundation (NBCF) | X | | X | | | | | X | Screening access & patient navigation | https://www.nationalbreastcancer.org |
| National Breast Cancer Coalition | X | | | X | X | | | | Survivor-led policy & research advocacy | https://www.stopbreastcancer.org |
| National Consortium of Breast Centers | X | | | | | | | X | Accreditation & quality standards for centers | https://www.breastcare.org |
| Breastcancertrials.org | | | | | X | | | X | Trial matching service | http://breastcancertrials.org |
| Nancy’s List | X | X | | | | | | | Grassroots, peer-driven resource sharing | https://nancyslist.org |
| Triple Negative Breast Cancer Foundation | X | X | | X | | | X | | TNBC-specific education & events | https://tnbcfoundation.org |
| FORCE (Hereditary Cancer) | X | X | | X | | | X | | Genetics, BRCA & inherited cancer focus | https://www.facingourrisk.org |
| AiRS Foundation | | | | | | | | X | Access to breast reconstruction surgery | https://airsfoundation.org |
| METAvivor (Stage IV) | X | X | | X | X | | X | | Only nonprofit dedicated solely to MBC | https://www.metavivor.org |
| Young Survival Coalition (YSC) | X | X | | X | | X | | | Fertility, career & young-adult issues | https://youngsurvival.org |
| The Breasties | X | X | | X | | X | | | Social community + advocacy | https://thebreasties.org |
| 5 Under 40 | X | X | X | | | X | | | Holistic care: beauty, wellness, medical | https://5under40.org |
| Breastcancer.org | X | X | | | | | | | Expert-reviewed education + forums | https://www.breastcancer.org |
| CancerCare | X | X | X | | | | | X | Oncology social workers & financial aid | https://www.cancercare.org |
| SHARE Cancer Support | X | X | | | | | | | Survivor-led helplines & groups | https://www.sharecancersupport.org |
| Cancer Support Community / Gilda’s Club | X | X | | | | | | | Free counseling, groups & workshops | https://www.cancersupportcommunity.org |
| Tigerlily Foundation | X | X | | X | | X | | | Focus on health equity & BIPOC patients | https://tigerlilyfoundation.org |
| Metaplastic Breast Cancer Global Alliance | X | X | | X | X | | X | | Rare, aggressive subtype focus | https://www.mpbcalliance.org |
| American Cancer Society | X | X | X | X | X | | | X | Lodging, rides, national reach | https://www.cancer.org |
| Susan G. Komen | X | X | X | X | X | | | X | Large-scale grants & helpline | https://www.komen.org |
