Why Appen?

With over 20 years of industry experience, Appen works with leaders in the social media industry to improve their platforms for users worldwide. We have access to an experienced global crowd of over 1 million people, allowing us to quickly ramp new projects to meet our customers’ needs.

Our data services


  • Consultative Services

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

  • Content Moderation

    Scale your content moderation efforts using local experts for product reviews, site content and more.

  • Field Testing

    Ensure a successful launch of your application or system by using local testers in the field

  • Personalization

    Train your algorithm to deliver more personalized results for your users, driving higher satisfaction and engagement.

  • Relevant Search Evaluation

    We provide customized programs designed to improve the accuracy and relevancy of your search results.

  • Semantic Annotation

    Improve product listings and on site search with semantic annotation.

  • Translation and Localization

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

Additional resources


Why human annotated data is key Appen blog

Why Human-Annotated Data is Key to Machine Learning: Three Use Cases

Machine learning requires high volumes of data for training, validation, and testing. A machine learning model learns to find patterns in the input that is fed to it. This input is referred to as training data. As you train your solution to form relationships between variables, it’s important to have the right data, structured in the right format, covering all …

How LinkedIn Uses AI to Optimize the User Experience

Insights from AI NextCon 2018: How LinkedIn Uses AI to Optimize the User Experience

When it comes to building its AI platform, the LinkedIn team’s goal has been to make end-to-end machine learning easy, fast, robust and automatic.

Appen Local Search Results Case Study

Improving Local Search Results for Enhanced User Experience [Case Study]

When a search engine provider needed to keep up with business listing demand, it turned to Appen to ensure accuracy.

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Improve your training data

Scale your machine learning with high-quality training data. Talk with one of our experts today.


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