| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (516 reviews) | Istanbul, Turkey | — | — | Allogenic bone marrow transplantation from an unrelated donor, Cryotherapy | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #2 | 4.7 / 5 (155 reviews) | Vienna, Austria | — | — | Сonsultation with an oncohematologist | — | — | International Organization for Standardization, World's Best Hospitals 2021 by Newsweek | |
| #3 | 3.8 / 5 (8 reviews) | Vienna, Austria | — | — | Сonsultation with an oncohematologist | — | — | — | |
| #4 | 4.6 / 5 (473 reviews) | Istanbul, Turkey | — | — | Gamma Knife for brain tumor, Chemotherapy for Sarcomas | — | — | Joint Commission International , Patient choice in Pediatric Oncology & Hematology Oncology | |
| #5 | 5.0 / 5 (55 reviews) | Istanbul, Turkey | — | — | Сonsultation with an oncohematologist | — | — | Joint Commission International , International Organization for Standardization | |
| #6 | 4.3 / 5 (16 reviews) | Hamburg, Germany | — | — | Cryodestruction, Radiotherapy | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #7 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Сonsultation with an oncohematologist | — | — | World's Best Hospitals 2021 by Newsweek | |
| #8 | 4.5 / 5 (156 reviews) | Tel Aviv, Israel | 38+ years34,000+ treatments | Transnasal resection of tumor, Gamma Knife for brain tumor | — | — | World's Best Smart Hospitals 2021 by Newsweek, World's Best Hospitals 2021 by Newsweek | ||
| #9 | 3.8 / 5 (6 reviews) | Madrid, Spain | — | — | Bone marrow transplantation, Allogenic bone marrow transplantation from an unrelated donor | — | — | World's Best Hospitals 2021 by Newsweek | |
| #10 | 4.5 / 5 (52 reviews) | Frankfurt am Main, Germany | — | — | CyberKnife for brain tumor, Brain tumor removal | — | — | TÜV AG Сompany Research & Investing Certificate, TOP German hospital according to 2019 Focus ranking |