What is Entity Linking?

Entity linking involves locating and disambiguating named entities in a text through the use of a knowledge base. Named entities are unique, distinct concepts that often have a proper name, such as “Los Angeles” or “Marie Curie”. The purpose of entity linking is to add metadata that not only identifies the appearance of a named entity in the text, but also which specific entity it is.

Tying entities to a unique entry in a knowledge base is an important step in the construction of many machine learning text algorithms. Accurate entity linking allows you to build models that analyze text in depth, show search results with pinpoint accuracy, and provide exemplary customer service – no matter how your customers phrase their requests.

At Lionbridge, we’ve spent decades developing our industry-leading entity linking services. From our custom-built platform to our pool of annotators in 300+ global languages, we have all the tools you need to accurately link volumes of text to your knowledge base of choice.

Why Lionbridge?

Multilingual Services

From our first language to our 300th, we’re renowned for excellence in every text-based task we take on.


Our annotators have years of experience in identifying, tagging, and coreferencing unique entities.

Custom Workflows

Our workbench has the flexibility  to accommodate your project’s specialist requirements – just like our huge crowd of annotators.

1 million+ Contributors
300+ Languages
20+ Years of Experience

Our Entity Linking Services

End-to-End Entity Linking

We’re experienced in turning raw text data into comprehensive entity linking datasets. Our workbench is built to handle every step of the process, from cleaning and preparing your data to extracting and linking your entities. Whether you have nothing but big ambitions or pages of detailed guidelines to fulfill, we can build datasets of any size that will help you to improve your algorithm.

Entity Disambiguation

If you’re just looking for annotators to create the perfect ground truth data, we’re here to help. Our crowd is able to link entities in multiple documents and languages to one single knowledge base. Whether you want wikification or disambiguation to a custom database, our flexible processes allow you to create comprehensive links to the knowledge base that suits you.

How it Works

how to crowdsource data

1. Project set-up

Our team work with you to develop a custom solution based on your project’s requirements, goals, and timeline.

how to crowdsource data
how to crowdsource data

2. Production

Our crowd of multilingual experts get to work linking your data to your knowledge base.

how to crowdsource data
how to crowdsource data

3. Delivery

Our project management team check, package and format the data before sending it to you for final approval.

how to crowdsource data

Our Entity Linking Solution at a Glance

Unique Knowledge Bases

Link entities to your knowledge base of choice, whether that’s Wikidata or your own custom database.

No Mentions

Ask our annotators to manually add unique identifiers for entities which are absent from your knowledge base.


Use our language specialism to find all ambiguous instances of your entities across texts in 300+ languages.

Name Variations

Achieve a high level of coreference accuracy for each of your entities, despite any spelling errors, abbreviations, or aliases.


Build datasets for named entity linking across multiple documents and languages using our global workforce.


Entity Linking Pricing

Thanks to our platform, we’re able to streamline much of the entity linking process – and offer one of the most cost-effective entity linking solutions in the industry.

Contact us to get a free estimate for your project.

  • Account Manager
  • Project Management
  • 24/7 Support
  • API
  • NDA
  • Volume pricing
  • Custom reporting
  • Enterprise-grade SLAs
  • Custom invoicing
  • Consulting services
Get in touch with our team today

Multilingual Entity Linking Services

Lionbridge’s linguistic background makes us the developer’s choice for entity linking services in over 300 languages. Some of our most popular languages include:

  • Chinese entity linking
  • Dutch entity linking
  • French entity linking
  • German entity linking
  • Italian entity linking
  • Japanese entity linking
  • Portuguese entity linking
  • Spanish entity linking

Build out your text algorithm using our related services

Power your NLP algorithms with a solid ground truth using our accurately annotated AI training data.
Order comprehensive named entity datasets through our API.
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