| #1 | | | Barcelona, Spain | | 39+ years1,000+ treatments | Gamma Knife, chemotherapy, immunotherapy | Complex or recurrent osteosarcoma cases | Specializes in oncology with Gamma Knife technology. 94% patient recommendation rate. Offers modern chemotherapy and immunotherapy regimens. | Joint Commission International , European Foundation for Quality Management |
| #2 | | | Barcelona, Spain | | 38+ years | — | — | — | Joint Commission International |
| #3 | | | Madrid, Spain | | 19+ years | Gamma Knife, chemotherapy, immunotherapy, targeted therapy, surgical intervention, radiotherapy | Pediatric and complex cases | Specializes in pediatric osteosarcoma with Dr. Luis Madero's 37 years of experience. Offers advanced treatments like Gamma Knife and personalized therapy plans. Multidisciplinary team approach. | World's Best Hospitals 2021 by Newsweek |
| #4 | | | Barcelona, Spain | | 30+ years14,000+ treatments | — | — | — | Bookimed Award: Best pediatric hospital, World's Best Specialized Hospitals 2022 by Newsweek |
| #5 | | | Madrid, Spain | | 36+ years26,000+ treatments | Gamma Knife, targeted therapy, nuclear medicine, brachytherapy, radiosurgery | Complex bone tumors requiring precision treatment | Offers Gamma Knife radiosurgery and advanced cancer therapies. Equipped with Elekta Versa HD and Novalis linear accelerators for precise tumor targeting. Part of HM CIOCC cancer center recognized with Madrid Health Award. | European Foundation for Quality Management, TÜV AG Сompany Research & Investing Certificate |
| #6 | | | Madrid, Spain | | 36+ years | — | — | — | European Foundation for Quality Management, Certification according to DIN EN ISO 9001 by TÜV NORD CERT |
| #7 | | | Pamplona, Spain | | 64+ years | Gamma Knife, Canadell technique, limb-preserving surgery | Pediatric osteosarcoma cases | 74% cure rate for osteosarcoma. Preserves limbs in 90% of cases using their patented Canadell technique. Spain's leading sarcoma center with 1,500+ sarcoma patients treated. | Joint Commission International , European Society for Medical Oncology |