Data annotation is an essential step in the development process of artificial intelligence (AI) and machine learning (ML).
In this trend, Vietnam is emerging as an attractive destination, with many advantages such as:
- A large workforce with many characteristics well suited for the job
- Competitive costs
- Government support through the national digital transformation strategy.
The data annotation market in Vietnam is experiencing strong growth, along with the emergence of many service providers. This article highlights the top 5 leading data annotation companies in Vietnam and outlines key evaluation criteria to help you choose the right provider.
Criteria for Evaluating Data Annotation Companies
To choose the right data annotation partner, businesses should consider the following key criteria:
- Labeled data quality must ensure high accuracy (>90%), supported by multi-layer quality control processes and formal service-level agreements (SLA) between the provider and the client.
- The provider should have sufficient human and technological resources to handle large volumes of data within short timeframes and be able to scale operations flexibly.
- The provider must implement strict security measures such as data encryption, NDA agreements, ISO 27001 security certification, and robust access control procedures.
- The provider should have experience working on projects across multiple industries, particularly in the client’s field.
- A professional customer support team is essential to quickly resolve operational and technical issues, ensuring the project runs smoothly.
5 Reputable Data Annotation Companies in Vietnam
Note: The order of the list does not reflect any ranking.
1. Bellsystem24 Vietnam
Bellsystem24 Vietnam is a leading BPO service provider in Vietnam, with many years of experience operating large-scale projects in customer service and implementing data collection and processing for various brands. The company has a workforce of more than 4,000 employees and strongly focuses on providing AI training-related servicesparticularly data annotation across multiple industries, with Japanese quality standards and flexible pricing models.
Services Provided
- Image Annotation: Image annotation using techniques such as bounding boxes, polygon annotation, and semantic segmentation for computer vision.
- Text Annotation: Text classification, named entity recognition (NER), sentiment analysis, and intent detection for chatbots and natural language processing (NLP).
- Video Annotation: Video annotation by frame, object tracking, and action recognition in videos.
- Audio Annotation: Speech-to-text transcription, speaker labeling, and emotion recognition.
- 3D Data Annotation: 3D data annotation and LiDAR labeling for autonomous vehicles.
- Data Collection: Collection of diverse datasets based on project requirements.
- Data Validation: Data validation and quality assurance with a three-layer QC process.
Strengths
- Japanese-standard processes: Applies Japanese quality management methods and standards from the Bell24 Japan Group, ensuring high data accuracy.
- Security: Security: Operational processes comply with international information security standards under ISO 27001:2022with NDAs signed with all relevant parties.
- Strict three-layer QA process: Annotator (L1) → Cross-check review by Reviewer (L2) → Audit by Project Manager (L3).
- Multilingual: Handles data in Vietnamese across regional dialects, English, Japanese, Chinese, and other languages.
- Scale and flexibility: Ability to handle projects ranging from small to very large with millions of data points, with fast deployment and flexible scaling thanks to a large team of data annotators.
- Flexible pricing models: Based on data points, hourly rates, or the number of personnel.
Contact Information:
- Headquarters: 3rd Floor, Trung Yen 1 Building – Trung Yen Urban Area, Yen Hoa Ward, Hanoi
- Ho Chi Minh Office: 8A Huynh Lan Khanh Street, Tan Son Hoa Ward, Ho Chi Minh City.
- Hotline: 1900 1739
- E-mail: contact@bs24vietnam.vn
2. Xtel
Overview:
Xtel is a Vietnamese technology company specializing in software development, game development, and data labeling services. With experience in the technology sector, Xtel provides data annotation services for AI and Big Data systems. The company has a strong technical team and deep understanding of the technical requirements of AI/ML projects.
Services Provided
- Text and audio data annotation services
- Video annotation services
- Image annotation services: bounding boxes, polylines, landmarks, semantic segmentation
Strengths
- Technology: The team has a strong background in software and game development, with a clear understanding of AI technical requirements, especially AI in gaming.
- Customized solutions: Flexible in designing workflows tailored to each project.
- Multi-platform integration: Capable of integrating with various systems and platforms.
Office:
- Headquarters No. 22, Alley 75/69/25 Phu Dien Street, Phu Dien Ward, Hanoi
- E-mail: contact@xtel.vn
- Hotline: 024 3200 3138
3. Kotwel
Overview:
Kotwel is a professional data services provider with offices in Vietnam and the United States. The company focuses on delivering high-quality AI training data with a well-trained workforce and strict quality control processes. Kotwel has built a strong reputation with clients across various industries such as technology, publishing, and healthcare.
Services Provided
- Image, text, video, and audio annotation
- End-to-end AI and Machine Learning solutions
- Data collection based on project requirements
Strengths
- Quality assurance: As a company specializing in AI data solutions, it has professional QC processes.
- Scalability: Flexible in scaling up the data annotator workforce when needed.
- Diverse client base: Serves various industries from technology and publishing to healthcare.
Office:
- Office: Gateway Building, Chi Linh Urban Area, Vung Tau, TPHCM
- E-mail: info@kotwel.com
4. MP BPO
MP BPO is a BPO company in Vietnam. The company has a team of more than 100 professionally trained annotation specialists, along with a strict double-check and QA system to ensure data quality. MP BPO has implemented multiple international annotation projects for AI/ML companies.
Services Provided
- Video annotation, part-of-speech tagging, dialogue annotation, image annotation, and ID document annotation.
Strengths
- Strict QA process: Double testing and QA across four levels.
- Experience: Many years of outsourcing experience in BPO projects.
- Competitive pricing: Flexible pricing models suitable for projects of various sizes.
Office:
- Office: 10th Floor, Sudico Building, Me Tri, Tu Liem Ward, Hanoi.
- Hotline: 093 240 82 27
5. Digitexx
DIGI-TEXX is a 100% German-owned company with more than 20 years of experience operating in the BPO sector in Vietnam, particularly focusing on data processing services. The company has a team of over 1,000 full-time employees working 24/7 and supports more than 30 languages.
Services Provided
- Data annotation and labeling: images, videos, and text.
- Data processing for AI training and digital transformation initiatives.
- Document digitization for industries such as e-commerce, banking, and insurance.
Strengths
- Focus on key industries: banking, e-commerce, and insurance.
- 24/7 operations, serving clients across different time zones.
- More than 20 years of experience in BPO and data processing.
Office:
- Headquarters: Anna Building, QTSC, Trung My Tay Ward
- Hotline: (+84) 28 3715 5325
Start Your Data Annotation Project with Bellsystem24 Vietnam
Are you looking for a professional data annotation partner to accelerate your AI development? Bellsystem24 Vietnam is ready to support you with the following key advantages:
- Comprehensive annotation services from Image, Text, Video, and Audio to 3D Annotation.
- Strict three-layer QA process following Japanese standards with the Kaizen quality management approach and ISO 27001:2022 security compliance..
- A team of 4,000+ professionally trained specialists ready for rapid deployment.
- Multilingual support for both global projects and localization needs.
- No setup costs, helping you save on office, recruitment, and training expenses.
With many years of experience in this field, we understand that data quality determines the quality of AI models. Working with Bellsystem24 Vietnam means your data is handled by top specialists under the strictest processes, ensuring your AI models learn accurately from the start.
Contact us
- Hotline: 1900 1739
- E-mail: contact@bs24vietnam.vn
