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. Our secure facilities allow for the handling of all types of sensitive data sets, ensuring the privacy of your customer data.

Our data services


  • Consultative Services

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

  • Crowdsourcing

    With Appen's skilled global crowd, you can quickly and cost-effectively scale your program to better meet customer needs.

  • Data Annotation

    Improve your machine learning-based products with high-quality, human-annotated training data.

  • Secure Services

    Use secure services when working with any datasets where privacy is a key concern.

Additional resources


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.

How to improve speech recognition accuracy

When Speech Recognition Goes Wrong

Even the best speech recognition isn’t 100% accurate. And when things go wrong, the errors can be glaring, if not occasionally entertaining.

What’s Your NLP Data Strategy

Insights from Conversational Interaction Conference 2017 | NLP Strategy

While every enterprise has a Big Data strategy, few have an Natural Language Processing (NLP) data strategy. Do you?

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