| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (484 reviews) | Barcelona, Spain | 41+ years23,000+ treatments | Stem cell therapy for arthritis, Stem cell therapy for knees | — | — | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 5.0 / 5 (1 review) | Madrid, Spain | 28+ years | Stem Cells | — | — | Joint Commission International , International Organization for Standardization | ||
| #3 | 4.4 / 5 (6 reviews) | Barcelona, Spain | — | — | Stem Cells | — | — | Joint Commission International | |
| #4 | 3.4 / 5 (0 reviews) | Madrid, Spain | — | — | Stem Cells | — | — | Joint Commission International | |
| #5 | 4.7 / 5 (7 reviews) | Pamplona, Spain | — | Stem Cells | — | — | Joint Commission International , European Society for Medical Oncology |