Built in Hanoi. Trusted worldwide.
DataX annotation was founded on a simple belief: that great AI starts with great data — and great data comes from people who care about precision.
Why DataX annotation Exists
DataX annotation Ltd was founded in Hanoi, Vietnam by a team with roots in enterprise IT outsourcing and AI services. We saw firsthand that AI teams worldwide were struggling with the same problem: finding an annotation partner they could actually trust.
Too many vendors delivered inconsistent quality, poor communication, and annotation that looked fine on the surface but failed at training time. We built DataX annotation to be the antidote — a company where quality is non-negotiable and transparency is the default, not the exception.
Today we serve AI teams at startups, research labs, and enterprise companies across the US, UK, Europe, Australia, and beyond — annotating everything from conversational AI datasets to LiDAR point clouds for autonomous vehicles.
What we believe
These aren't slogans. They're the principles that shape every annotation project, client conversation, and hiring decision we make.
Quality Without Compromise
We measure quality at every step. Inter-annotator agreement scores, automated validation, and manual QA passes are not optional — they are the standard.
Radical Transparency
You always know what your team is working on, how quality is tracking, and when delivery is expected. Daily updates, shared dashboards, no surprises.
Customer Centricity
Every decision starts with the client. We align our processes, timelines, and communication around your goals — not ours. Your success is the only metric that matters.
Data Security First
Every engagement starts with an NDA. Access controls, audit trails, and GDPR-aligned data handling protect your most sensitive datasets.
The people behind your data
Background in Sales and Partnerships across the ITO industry. Built DataX annotation to connect global AI teams with world-class annotation talent in Vietnam.
Chris Pham
CEO & Founder
Business Development & Strategy
10+ years in the ITO market, with key experience in Operations and Project Management.
Harry Pham
Founder & Head of Operations
Operations & Project Management
8 years of experience in data labeling operations and quality management. Oversees annotator training, QA processes, and delivery SLAs.
Haley Tran
Head of Annotation Operations
Operations & Quality
Former ML engineer who bridges the gap between annotation requirements and model training needs. Ensures data format compatibility and pipeline readiness.
Anya Ngo
Technical Lead
ML Engineering & Tooling
Local expertise, global reach
Being headquartered in Hanoi gives us a cost and talent advantage that we pass directly to clients. We operate across time zones, support multilingual annotation at scale, and have built delivery processes that work for teams in the US, Europe, and beyond.
Whether you're a startup in London or an enterprise team in San Francisco, we align our communication and delivery to your schedule — not the other way around.
Talk to Our TeamUnlock The Potential Of
AI With DataX annotation
Tell us about your dataset. We'll scope your project, match you with the right specialist team, and deliver training-ready data — fast.
Trusted by 60+ AI teams · Response within 24 hours · No-commitment scoping call