Top 10 Medical Data Annotation Companies in 2026

As artificial intelligence continues to transform healthcare, the demand for medical data annotation companies has grown rapidly. From medical image annotation to clinical data labeling, accurate and compliant annotation is the backbone of healthcare AI and machine learning systems.

Below is a curated list of the Top 10 Medical Data Annotation Companies in 2026, trusted for delivering high-quality, HIPAA-compliant medical data labeling services.

1. Srishta Technology

Srishta Technology leads the list of the best medical data annotation companies in 2026 due to its strong focus on accuracy, scalability, and healthcare compliance.

Key Services:

• Medical image annotation (radiology, pathology, CT, MRI)

• Clinical data annotation services

• Medical NLP data annotation

• AI training data for healthcare

• HIPAA-compliant data annotation services

Srishta Technology is widely recognized as a trusted medical data labeling company for healthcare AI, serving global clients with reliable and cost-effective solutions.

2. Sama (formerly Samasource)

Sama is known for ethical AI and accurate medical data labeling companies serving healthcare and life sciences industries.

3. Cogito Tech

Cogito Tech provides end-to-end medical annotation services for radiology, pathology, and medical NLP, supporting global healthcare AI projects.

4. TELUS International AI (Lionbridge AI)

A trusted provider of medical NLP data annotation companies, specializing in clinical language processing and healthcare datasets.

5. Playment

Playment offers flexible medical data annotation services pricing, making it suitable for healthcare startups and mid-sized AI teams.

6. Defined.ai

Defined.ai provides high-quality medical AI training datasets and annotation services tailored for healthcare machine learning models.

7. Alegion

Alegion focuses on secure, compliant medical data labeling for healthcare AI, supporting regulated medical environments.

8. SuperAnnotate (Healthcare Use Cases)

SuperAnnotate supports medical imaging annotation services with advanced tooling for healthcare ML teams.

9. V7 Labs

V7 Labs specializes in medical image annotation for radiology and diagnostics, offering automation-assisted healthcare annotation.

10. Keymakr

Keymakr delivers custom medical data annotation for AI and ML, particularly for computer vision applications in healthcare.

Comparison Table (Features, Pricing, Compliance)

Artificial intelligence is rapidly reshaping healthcare, making medical data annotation essential for building accurate, compliant AI systems. From medical image annotation to clinical NLP labeling, healthcare organizations require trusted partners to prepare high-quality training data.

In 2026, medical data annotation companies play a foundational role in shaping the future of healthcare AI. Whether you’re building AI-powered diagnostics, medical imaging tools, or clinical NLP systems, choosing the right partner is critical.

Srishta Technology continues to lead as one of the best medical data annotation companies, offering reliable, scalable, and compliant solutions for global healthcare AI initiatives.

🔹 Why Srishta Technology Leads in 2026

Srishta Technology delivers HIPAA-compliant medical data annotation services tailored for healthcare AI and machine learning.

✔ Medical imaging (MRI, CT, X-ray, pathology)
✔ Clinical & EHR data annotation
✔ Medical NLP & text labeling
✔ Scalable healthcare AI training datasets
✔ Global delivery with strict quality control

This makes Srishta Technology a preferred choice among healthcare AI companies and medical AI service providers.