| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (534 reviews) | Istanbul, Turkey | — | — | Allogenic bone marrow transplantation from an unrelated donor, Leukemia chemotherapy | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #2 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | — | Allogenic bone marrow transplantation from an unrelated donor, Allogenic bone marrow transplantation from a related donor | — | — | World's Best Hospitals 2021 by Newsweek | |
| #3 | 4.7 / 5 (44 reviews) | Barcelona, Spain | 14,000+ treatments | Autologous bone marrow transplantation, Bone marrow transplantation | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek | ||
| #4 | 4.5 / 5 (57 reviews) | Frankfurt am Main, Germany | 36+ years | Brain tumor removal, CyberKnife | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking | ||
| #5 | 4.4 / 5 (33 reviews) | Istanbul, Turkey | — | — | Sarcoma surgery, Transnasal resection of tumor | — | — | International Organization for Standardization, Joint Commission International | |
| #6 | 5.0 / 5 (1 review) | Istanbul, Turkey | — | — | Cytogenetic study of the bone marrow | — | — | International Organization for Standardization, Joint Commission International | |
| #7 | 4.6 / 5 (131 reviews) | Bangkok, Thailand | — | — | Radiation therapy for brain tumor, Bone marrow transplantation | — | — | International Organization for Standardization, Joint Commission International | |
| #8 | 4.1 / 5 (42 reviews) | Istanbul, Turkey | 36+ years | Allogenic bone marrow transplantation from an unrelated donor, Bone marrow transplantation | — | — | The Baby-friendly Hospital Initiative (BFHI) by WHO and UNICEF, Turkish Medical Association | ||
| #9 | 5.0 / 5 (9 reviews) | Seoul, Republic of Korea | — | — | Cytogenetic study of the bone marrow | — | — | Joint Commission International , Korean Institute for Healthcare Accreditation | |
| #10 | 4.8 / 5 (6 reviews) | Seoul, Republic of Korea | — | 32,000+ treatments | Gamma Knife for brain tumor, Brain tumor removal | — | — | Global Healthcare Accreditation Program, World's Best Hospitals 2021 by Newsweek |