| AzIza Travel Medical Spa Treatment in Poland | Poland | Medical and health spas | United Kingdom |
| AZGARD- Dental Tourism Agency | Poland | Dentistry | Poland |
| Ayursoukhyam Ayurvedic Resort | | Medical and health spas | India |
| Ayoun Al-Reem for Health Tourism | Jordan and Italy | | |
| Ayka VItal Pack | Turkey | | Turkey |
| Ayii Anargyri Natural Healing Spa Resort | Cyprus | Other services | Cyprus |
| AXA PPP Health Care | | | United Kingdom |
| Avicenna Hospital | Turkey | Surgery | Turkey |
| Avanza Viaion | Spain | Surgery | Spain |
| Avantis Health | All | | United Kingdom |
| Avant Medical Group | France | Cosmetic surgery | United Kingdom |
| AVA-Clinic | Latvia | Infertility treatment | Latvia |
| AVA Clinic | | | Finland |
| AustraMed International Pty Ltd | Australia | Surgery | Australia |
| Australia Health Tourism | Australia | | Australia |
| Australia Health Tourism | Australia | Surgery | Australia |
| ATUL NURSING HOME | | Dentistry, Hair transplantation, Surgery - Cosmetic and plastic, Surgery – Eye, Surgery – General, Surgery – Gynaecology, Surgery – Heart, Surgery – Hip, Surgery - Knee, Surgery - Obesity, Surgery -... | India |
| ATOM | Asia | | |
| ATLAS HOSPITAL | | Surgery – Hip, Surgery - Knee, Surgery - Orthopaedic, Surgery - Shoulder, Surgery - Spine | India |
| Atlantik Klinik | Hungary | Hair transplantation | Hungary |
| Atharveda Healthcare Pvt.Ltd | India | Dentistry, Surgery - Cosmetic and plastic, Surgery – Eye, Surgery – General, Surgery – Gynaecology, Surgery – Heart, Surgery – Hip, Surgery - Knee, Surgery - Obesity, Surgery - Orthopaedic, Surgery... | India |
| AST Ambulance Service | United Kingdom | | United Kingdom |
| Assisted Living Facility | USA | | United States of America |
| Assistance Plus | | | Russia |
| Assistance Alliance | Hong Kong | | |
| Assaf Harofeh Medical Center | Israel | Care of the elderly, Infertility treatment, Surgery, Other services | Israel |
| ASOCIACION MEXICANA DE TURISMO MEDICO | | Cancer treatment, CT and MRI scans, Dentistry, Drug and alcohol rehab, Hair transplantation, Infertility treatment, Medical and health spas, Stem cell treatment, Surgery - Cosmetic and plastic,... | Mexico |
| Asklepion Clinic | Czech Republic | Surgery - Cosmetic and plastic | Czech Republic |
| ASISER (Asisa Servicios Integrales De Salud, S.A.U) | Spain | | Spain |
| Asiri Group | Sri Lanka | Surgery - Orthopaedic | Sri Lanka |
| Asiri Group | Sri Lanka | Surgery – Eye | Sri Lanka |
| Asiri Group | Sri Lanka | Surgery – Heart | |
| Asiri Group | Sri Lanka | Surgery – Heart | Sri Lanka |
| Asian Medical Tourism | India | Infertility treatment, Surgery, Other services | India |
| Asian Heart Institute | | CT and MRI scans, Surgery - Cosmetic and plastic, Surgery – General, Surgery – Gynaecology, Surgery – Heart, Surgery – Hip, Surgery - Knee, Surgery - Obesity, Surgery - Orthopaedic, Surgery -... | India |
| Asian Health Tourism | Philippines | Cosmetic surgery, Dentistry, Infertility treatment, Obesity surgery, Surgery | Philippines |
| Asia Health Assist | India | Cosmetic surgery, Infertility treatment, Obesity surgery, Surgery | India |
| Ashwini Agencies | India | Dentistry | India |
| Ashtangavaidyam Ayurvedics | India | Medical and health spas, Other services | India |
| Ascot Hospitals International | New Zealand | Infertility treatment, Surgery - Cosmetic and plastic, Surgery – General, Surgery – Gynaecology, Surgery – Heart, Surgery – Hip, Surgery - Knee, Surgery - Orthopaedic, Surgery - Shoulder, Surgery -... | New Zealand |
| ASANES | Spain | Infertility treatment, Surgery - Cosmetic and plastic, Surgery – General | Spain |
| Artros | Slovenia | Surgery - Orthopaedic | Slovenia |
| Artemedis | Belgium | Surgery - Cosmetic and plastic | |
| Art&Dent | Spain | Dentistry | Spain |
| Art Medic Clinic | Hungary | Dentistry | Hungary |
| ART Hospita | Turkey | Hair transplantation, Surgery - Cosmetic and plastic | Turkey |
| Arriva Costa Rica | Costa Rica | Cosmetic surgery, Dentistry, Hair transplantation, Obesity surgery | United States of America |
| Arogi EUROMEDICA | | | Greece |
| Arkadent Dental Clinics | Hungary | Dentistry | Hungary |
| Arizona Vapor Room | | Drug and alcohol rehab | United States of America |
| Arizona Doppler Specialists | United States | | United States of America |
| Aretaeio Hospital | Cyprus | Surgery | Cyprus |
| Ardent | Turkey | Dentistry | Turkey |
| Aradipoy Dental Salon | Cyprus | Dentistry | Cyprus |
| Appearance International | | | United States of America |
| Apollonion Private Hospital | Cyprus | CT and MRI scans, Surgery - Spine | Cyprus |
| Apollo Hospitals Enterprises Ltd. | India, Bangladesh, | CT and MRI scans | India |
| Apollo Hospitals | India | Infertility treatment | India |
| Apollo Hospitals | India | | India |
| Apollo Hospitals | India | | India |
| Apollo Bramwell Hospital | Mauritius | CT and MRI scans, Dentistry, Infertility treatment | Mauritius |
| Anvita Tours2Health Pvt. Ltd. | India | Cancer treatment, Care of the elderly, CT and MRI scans, Dentistry, Drug and alcohol rehab, Hair transplantation, Infertility treatment, Stem cell treatment, Surgery - Cosmetic and plastic, Surgery –... | India |
| Antiaging Group Barcelona | Spain | Cosmetic surgery | Spain |
| Ankara Hernia Center | Turkey | Surgery | Turkey |
| Angels of Flight Canada, INC | Canada | | Canada |
| Angels Global Healthcare | Israel, Mexico, India, Thailand, Costa Rica, Canada, U.S. | Cancer treatment, Dentistry, Infertility treatment, Surgery - Cosmetic and plastic, Surgery – General, Surgery – Heart, Surgery - Obesity, Surgery - Orthopaedic, Surgery - Spine | Canada |
| Angel Meditour | | 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 -... | India |
| Angel MedFlight Worldwide Air Ambulance | | | United States of America |
| Anew Healthcare | Poland | Cosmetic surgery, Dentistry, Infertility treatment, Medical and health spas, Surgery | United Kingdom |
| Andromeda Solutions (U) Ltd | India | Cancer treatment, CT and MRI scans, Dentistry, Hair transplantation, Medical and health spas, Surgery - Cosmetic and plastic, Surgery – Eye, Surgery – General, Surgery – Gynaecology, Surgery – Hip,... | Uganda |
| Andalusia Group of Medical Services | Saudi Arabia and Egypt | Cancer treatment, Care of the elderly, Dentistry, Surgery - Cosmetic and plastic, Surgery – General, Surgery – Gynaecology, Surgery – Heart, Surgery – Hip, Surgery - Knee, Surgery - Orthopaedic,... | Egypt |
| ANCA Medical Centre | Belgium | Surgery | Belgium |
| Anatomica Hospital | Turkey | Surgery - Cosmetic and plastic | Turkey |
| Anadolu Medical Centre | Turkey | Cancer treatment, Dentistry, Infertility treatment | Turkey |
| Amrita Institute of Medical Sciences | India | Surgery | India |
| AMRI Hospitals | India | Surgery | India |
| AMRI Hospitals | India | Obesity surgery | India |
| AMI - Assistencia Medica Integral | Portugal | | Portugal |
| America's Medical Solutions | | Cancer treatment, CT and MRI scans, Dentistry, Hair transplantation, Infertility treatment, Medical and health spas, Surgery - Cosmetic and plastic, Surgery – General, Surgery – Gynaecology, Surgery... | India |
| America's Medical Solutions | India | Cosmetic surgery, Obesity surgery, Surgery | India |
| American Medical Clinic & Hospital | Russia | Surgery | Russia |
| American Hospital of Paris | France | Surgery | France |
| American Heart Institute | Cyprus | Surgery | Cyprus |
| American Heart Institute | | Surgery | Cyprus |
| Ameri Med (American Hospitals) | Mexico | Cosmetic surgery | Mexico |
| Ambassador Care | Worldwide | Cancer treatment, Care of the elderly, CT and MRI scans, Dentistry, Drug and alcohol rehab, Surgery – Eye, Surgery – General, Surgery – Gynaecology, Surgery – Heart, Surgery – Hip, Surgery - Knee,... | United States of America |
| Amazon Health & Medical Tourism Pvt. Ltd | | Surgery | India |
| Amara Healthcare Ltd | United Kingdom | | United Kingdom |
| Amara Healthcare | India | Infertility treatment | India |
| AltraVita | Russia | Infertility treatment | Russia |
| Althaia | Greece | Infertility treatment | Greece |
| Altera Health, Inc. | USA | Surgery, Other services | United States of America |
| AlphaDS | Bulgaria | Dentistry | Bulgaria |
| Alpha Paramedic and Ambulance Service | UK | | |
| All About Asia Pty Ltd | Thailand, Philippines | Surgery | Australia |
| Alhayah Fertility, Prenatal and Women's Health Care | Egypt | Infertility treatment | Egypt |
| Alfieri Dental Studio | Italy | Dentistry | Italy |
| Alfaevac Limited | Worldwide | Other services | Jordan |
| Alestar Services Ltd | Cyprus | Other services | Cyprus |
| Alepmed | Syria | Dentistry | Syria |
