Date : 25 February 2026

| Companies | Headquarters | Offerings |
| Alegion | United States | Provides managed data collection and high-accuracy annotation services for healthcare AI, supporting medical imaging, NLP, and clinical data labeling. |
| Amazon Web Services | United States | Offers scalable cloud platforms and tools for healthcare data labeling, secure storage, and AI model training using imaging and EHR datasets. |
| Appen Limited | Australia | Delivers large, diverse, and annotated text, image, audio, and video datasets used for training healthcare AI models. |
| Cogito Tech LLC | United States | Specializes in high-precision data annotation and curation services tailored for healthcare AI applications across multiple data formats. |
| Deep Vision Data | United States | Focuses on healthcare imaging dataset annotation and quality control to support advanced computer vision and diagnostic AI models. |
| Google (via Kaggle) | United States | Provides open and collaborative healthcare datasets through Kaggle, enabling AI model training, benchmarking, and research innovation. |
| Lionbridge Technologies | United States | Offers data curation, annotation, and validation services for healthcare AI, supporting clinical research, diagnostics, and patient engagement tools. |
The global AI training dataset in healthcare market size was estimated at USD 520.1 million in 2025 and is predicted to increase from USD 639.41 million in 2026 to approximately USD 4102.2 million by 2035, expanding at a CAGR of 22.94% from 2026 to 2035.

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