Providing AI training data to the world's leading technology companies

Multilingual Training Data in 300 Languages

Typical crowdsourcing companies generally don’t support languages other than English at scale. Lionbridge has native speakers of 300+ languages working around the clock so you can get multilingual training data for machine learning quickly.

Lionbridge provides high-quality data for machine learning at scale

With over 20 years of experience as the trusted source of training data for the world’s leading tech companies, Lionbridge supports businesses large and small throughout the data annotation process.

Our crowd of highly skilled and specialized language professionals are located across the globe and available 24/7, providing access to a huge volume of data across all languages and file types.

Our multilingual workforce will take care of your data for complete ease-of-use

Advanced quality check system

Our established quality assurance system includes built-in validation, worker spot-checking and a worker seniority system to ensure high-quality data.

Automatic job distribution

Our advanced crowd system allows projects to be automatically distributed to qualified contributors to begin work immediately.

Streamlined platform and communications

Our innovative and fully-automated platform offers seamless project and crowd management to provide cost-effective pricing and uncomplicated interactions for on-time delivery.

500,000+ Contributors
300+ Languages
20+ Years of Experience

Flexible solutions for all your training data needs

From on-site to on-demand, we can customize our process to fulfill your specialist requirements.

Remote crowdsourcing services
Secure, on-site annotation
Our custom-built annotation platform
Your in-house annotation tools
API integration
AI consulting and project management

Friction-free Ordering

Three simple ways to get high-quality data

Account Manager

Send your file to one of our personal account managers.

API Integration

Link directly with our API for high-volume data and a seamless tech approach.

Custom solutions

… Or tell us your requirements and we’ll create the data from scratch to suit your specific business needs.

Get in touch with our team today

Our Success Stories

Basis Tech - Zachary Yocum

“For our projects, it’s incredibly important to maintain a high level of data quality, otherwise it’s garbage in — garbage out. We used several internal tools to assess the quality of what Lionbridge provided, and the results were very good. We have confidence that we could potentially use the data for critical deep-learning projects.”
Zachary Yocum
Senior Linguistic Data Engineer,
Basis Technology

Machine Translation Retraining

We sourced over 200,000 segments in Japanese to English to train machine translation deep-learning models.

Content Summarization

We created a customized team and process to select the top three most informative comments across hundreds of forum posts.

Audio Speech Analysis

We evaluated hundreds of machine-generated speech samples to identify problematic pronunciation and errors to determine overall naturalness.

Site available in English