Why Appen?

For over 20 years, Appen has worked with companies around the world to improve their speech and machine learning-based solutions by providing high-quality, human-annotated data. With coverage in over 180 languages and dialects, we can help you reach more users more effectively.

Our data services


  • Consultative Services

    We work closely with your team to develop a customized program that addresses your unique business challenges.

  • Language Technology QA

    Develop top notch language-based solutions with language quality assurance services.

  • Lexicons and Word Lists

    Use custom lexicons and word lists to ensure the accuracy of your speech and text-based systems.

  • Linguistic Annotation

    Help train your machine learning model to better understand text so it can respond more accurately to human interaction.

  • Linguistic Consulting

    Ensure your solutions meet the needs of customers worldwide with the help of expert linguists.

  • Linguistic Rule Development

    Create rules or grammars in multiple languages to improve the accuracy of your language technology solutions.

  • Translation and Localization

    Traditional translation and machine translation services from language and data experts.

Additional resources


AI Requires a Human Touch_Appen Crowdsourcing_Crowd Sourced Data

AI Requires a Human Touch: How Appen Recruits Crowds to Improve Technology

Kerri Reynolds, Sr. VP of Human Resources and Crowdsourcing, shares insights into crowdsourcing and crowd recruiting.

Data protection for video evidence

Data Protection for Video Evidence

Body Worn Cameras and the video evidence they provide has been a game changer, and data protection is key to pushing it even further.

Supporting the Artificial Intelligence Market in China: Appen Office in Bejing

Supporting the Artificial Intelligence Market in China: Appen Office in Bejing

Appen’s newly opened office in Beijing will help build a presence within the Chinese technology market and further develop local capability.

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