Data Annotation Services in Vietnam

DataXanno (a service of DataX Power Ltd, headquartered in Hanoi) is one of Vietnam's top data annotation providers. We deliver enterprise-grade NLP, image, video, audio, LiDAR, and document annotation for AI and ML teams across APAC and worldwide, with 99%+ accuracy benchmarks, 2M+ assets annotated, and 60+ clients served.

Vietnam offers a rare combination: 40–60% cost savings versus US and EU vendors, native coverage of Southeast Asian languages (Vietnamese, Thai, Malay, Bahasa, Mandarin), GMT+7 timezone alignment for APAC clients, a fast-growing AI talent pool, and a stable, low-risk political environment. It is widely considered one of the strongest emerging hubs for AI training data services.

India typically wins on raw cost and ML engineering depth. The Philippines wins on English fluency and BPO maturity. Vietnam wins where Southeast Asian language coverage matters, where APAC timezone alignment is critical, or where clients want a strong technical talent pool with lower geopolitical concentration risk than India.

Top Vietnamese providers like DataXanno cover all major modalities: NLP and text annotation, image annotation (bounding boxes, segmentation, keypoints), video annotation (tracking, action recognition), audio annotation (transcription, diarization), 3D point cloud / LiDAR annotation, and document/OCR annotation.

Yes. Reputable Vietnam-based providers operate under NDA on every engagement, use encrypted data transfers (TLS 1.2+), enforce controlled access environments, and can accommodate on-premise or air-gapped workflows for highly sensitive datasets. Vietnam follows GDPR-aligned handling practices for international clients.

DataXanno maintains a trained annotator pool across all data modalities and can scale to hundreds of annotators within days for high-volume projects. Most clients move from contract signing to first annotated delivery within 48 hours.

Pricing varies by modality and complexity. Hourly rates typically range from $8–$15 USD, or per-asset pricing depending on annotation type. DataXanno provides a detailed quote within 24 hours of receiving a project brief, with no hidden fees and full transparency before kickoff.

Yes — and this is a key differentiator. DataXanno annotators are native Vietnamese speakers with linguistic training, enabling accurate NER, sentiment, intent classification, and RLHF dataset creation in Vietnamese. We also cover Thai, Malay, Bahasa Indonesia, and Mandarin natively.