| S.P.A Travel | Israel | Surgery | Israel |
| S.P.A TRAVEL LTD | Israel | Other services | Israel |
| Sacred Heart Dental Clinic | Philippines | | |
| Safe Havens | Thailand | Drug and alcohol rehab | Thailand |
| Safemedtrip.com | India | Cosmetic surgery, Obesity surgery, Surgery, Other services | India |
| Sagrada Familia Fertility & Reproductive Medicine Center | Spain | | Spain |
| Sahaj Dental Clinic | India | Dentistry | India |
| Sahara Global | India | Cosmetic surgery, Dentistry, Surgery | United Kingdom |
| Sahara Medical Tourism | India | Cosmetic surgery, Dentistry, Obesity surgery, Surgery | India |
| Sahara Medical Tourism | | | India |
| Sai Medi Services | India | Cosmetic surgery, Surgery | India |
| Saint George's Hospital | Cyprus | Surgery | Cyprus |
| Saint James Hospital | Malta | Dentistry | Malta |
| Saint James Hospital | Malta | Surgery - Obesity | Malta |
| Saint James Hospital | Malta | Surgery - Cosmetic and plastic | Malta |
| Saint James Hospital Malta: Elective Surgery in Malta | Malta | Surgery - Cosmetic and plastic, Surgery – General, Surgery – Hip, Surgery - Knee, Surgery - Orthopaedic | Malta |
| Saint James Hospital Malta: Laser Eye Surgery, Cataract Surgery in Malta | Malta | Surgery – Eye | Malta |
| Saint James Hospital Sliema: Infertility Treatment in Malta | Malta | Infertility treatment | Malta |
| Sakuki Dental Hospital | Sri Lanka | Dentistry | Sri Lanka |
| Salus XXI | Spain | Infertility treatment | Spain |
| SAM | France | Other services | France |
| SAM | France | | France |
| SAM France | France | Surgery | France |
| SAM Medical France | France | Surgery, Other services | France |
| Sama Clinic & Surgi-Centers | Egypt | Dentistry | Egypt |
| San Amaro Clinica Dental | Spain | Dentistry | Spain |
| San Camillo Clinic | | | Italy |
| San Patricio MRI & CT Center | | CT and MRI scans | |
| Sanador Medical Center | Romania | CT and MRI scans | Romania |
| SancoDental | Hungary | Dentistry | Hungary |
| Sanest Consultores | Spain | Surgery | Spain |
| Santa Marina Polyclinic | Cyprus | Surgery | Cyprus |
| Sanyres | Spain | | |
| Sanz Medical Center - Laniado Hospital | Israel | Cancer treatment, Care of the elderly, CT and MRI scans, Infertility treatment, Surgery – Eye, Surgery – General, Surgery – Gynaecology, Surgery – Hip, Surgery - Knee, Surgery - Obesity, Surgery -... | Israel |
| Sapium Medicare | | Cancer treatment, Care of the elderly, CT and MRI scans, Dentistry, Drug and alcohol rehab, Hair transplantation, Infertility treatment, Medical and health spas, Stem cell treatment, Surgery -... | United Kingdom |
| Sapium Medicare | | | United Kingdom |
| Sardana Eye Institute | India | Cosmetic surgery, Surgery | India |
| Saude Atlantica | Portugal | Surgery | Portugal |
| Savina Clinic - Dental & Implantology Centre | Malta | Dentistry | Malta |
| Schill Dental Practice | Slovakia | Dentistry | Slovakia |
| Scientific Dental Clinic | India | Dentistry | India |
| Secret Escapes | Thailand | Cosmetic surgery | Australia |
| Secret Surgery Ltd | Poland | Dentistry, Hair transplantation, Medical and health spas, Surgery - Cosmetic and plastic, Surgery – General, Surgery – Hip, Surgery - Knee, Surgery - Obesity, Surgery - Orthopaedic | Poland |
| SeekingSurgeryAbroad | India | Cosmetic surgery, Dentistry, Infertility treatment, Medical and health spas, Obesity surgery, Surgery | India |
| Sema Hospital | Turkey | Cosmetic surgery, Surgery | Turkey |
| Sen Dental Clinic | Turkey | Dentistry | Turkey |
| SenaCare | USA, West Africa, Lebanon | Cancer treatment, Care of the elderly, CT and MRI scans, Infertility treatment, Surgery – Eye, Surgery – General, Surgery – Gynaecology, Surgery – Heart, Surgery – Hip, Surgery - Knee, Surgery -... | United States of America |
| Seoul Wooridul Spine Hospital | South Korea | Surgery | Korea, South |
| Serokolo | South Africa | Medical and health spas | South Africa |
| Serokolo | South Africa | Cosmetic surgery | South Africa |
| Serokolo | South Africa | Surgery | South Africa |
| Serokolo Health Tourism | South Africa | Cosmetic surgery, Medical and health spas, Surgery | South Africa |
| Seven Corners, Inc. | All Countries except United States of America | Dentistry, Hair transplantation, Infertility treatment, Medical and health spas, Surgery - Cosmetic and plastic, Surgery – Eye, Surgery – General, Surgery – Gynaecology, Surgery – Hip, Surgery -... | United States of America |
| SevenHills Hospital | India | Cosmetic surgery, Dentistry, Surgery, Other services | India |
| SevenHills Hospital | | | India |
| Severance Hospital | South Korea | | Korea South |
| Shanthi Hospital and Research Centre | | Cancer treatment, Medical and health spas, Surgery – General, Surgery – Gynaecology, Surgery - Obesity, Surgery - Orthopaedic | India |
| Shanthi Hospital and Research Centre | | Cancer treatment, Care of the elderly, Medical and health spas, Surgery – General, Surgery – Gynaecology, Surgery - Obesity, Surgery - Orthopaedic | India |
| Sharma Ayurveda Clinic | India | Other services | India |
| Shatrunjaya Meditour Solution | India, Turkey | | |
| Shekar Nethralaya - Superspeciality Eye Hospital | India | Surgery | India |
| Shemer Medical Center | | Cancer treatment, Care of the elderly, CT and MRI scans, Dentistry, Drug and alcohol rehab, Hair transplantation, Infertility treatment, Medical and health spas, Stem cell treatment, Surgery -... | Israel |
| Shen zhen ChinaCancer Therapy Biotechnologies.Co. Ltd | China | Surgery, Other services | China |
| Shosholoza Medical Tourism | South Africa | | South Africa |
| Shroff Eye Hospital | All over the World | Surgery | India |
| Siam Wellness Services | Thailand | Medical and health spas, Surgery, Other services | Thailand |
| Sian Skincare Laser Clinic | Vietnam | Surgery | Vietnam |
| Siddique Trading Corp | | Cancer treatment, Care of the elderly, CT and MRI scans | Bangladesh |
| Sifa Hospital Group | Turkey | Cosmetic surgery, Dentistry, Infertility treatment, Surgery | Turkey |
| Silom Dental Building | Thailand | | |
| SIMED Medical Assistance Services | Bulgaria | | Bulgaria |
| Simplecare World Health | Spain | Cancer treatment, CT and MRI scans, Dentistry, Drug and alcohol rehab, Hair transplantation, Infertility treatment, Surgery - Cosmetic and plastic, Surgery – Eye, Surgery – General, Surgery –... | Spain |
| Singapore Medical Group | Singapore | Cosmetic surgery, Surgery | Singapore |
| Singelberg Clinic | Belgium | Cosmetic surgery | Belgium |
| Singelberg Clinic and Sint Jozef Hospital | Belgium | Surgery - Cosmetic and plastic | Belgium |
| Singh Medical Services | India | | India |
| Skulavik Cosmetic Surgery | Austria | | Austria |
| Slovamed International | Slovakia | Cosmetic surgery, Surgery | Slovakia |
| SLV | | | Poland |
| Smart and Light | Tunisia | Obesity surgery | Tunisia |
| Smart Choice Medical Travel | Hungary | Infertility treatment | Hungary |
| Smart Choice Medical Travel | Hungary | Surgery | Hungary |
| Smile Architect | India | Dentistry | India |
| Smile Dent | Hungary | Dentistry | United Kingdom |
| Smile Dental Hospital | | Dentistry | India |
| Smile Dental Tours | Thailand | Dentistry | Australia |
| Smile Designs by Golpa | USA | Dentistry | United States of America |
| Smile Partner | Spain | Dentistry | France |
| Smile Planners, LLC | Thailand | Dentistry | United States of America |
| Smile Signature | | Dentistry | Thailand |
| Smile Signature Dental Clinic | | Dentistry | Thailand |
| Softouch Ayurveda Centre | Malta | Medical and health spas | Malta |
| Sojourn Med Tours | India | Dentistry, Surgery | India |
| Sona Parvaz | Iran | | Iran |
| Sonnenhof Clinic | Switzerland | Surgery | Switzerland |
| Sonomar Medical | Cyprus and Lebanon | Cancer treatment, CT and MRI scans, Dentistry, Hair transplantation, Infertility treatment, Medical and health spas, Surgery - Cosmetic and plastic, Surgery – Eye, Surgery – General, Surgery – Heart,... | Cyprus |
| Sonomar Medical | Cyprus and Lebanon | Cancer treatment, CT and MRI scans, Dentistry, Hair transplantation, Infertility treatment, Medical and health spas, Surgery - Cosmetic and plastic, Surgery – Eye, Surgery – General, Surgery – Heart,... | Cyprus |
| Sonora | | | |
| Southeastern Spine Center and Research Institute | United States of America | Surgery, Other services | United States of America |
| SOUTHEND Fertility and IVF | | Infertility treatment | India |
