Appen provides high-quality training data
to improve machine learning at scale

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  • Put AI to work for your business

    Create artificial intelligence solutions that work by using the right data.

    Find your industry

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  • Better data, better products

    Improve personalization and user experience for eCommerce, search, voice recognition, social and more.

    Improve your solution

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  • Training data for machine learning

    Annotation, collection, evaluation, transcription and translation of any data type or language.

    Explore our services


The Appen difference

Trusted by 8 out of the top 10 global technology companies

Appen_Training Data at Scale


With a crowd of 1,000,000+ people in over 130 countries working in more than 180 languages and dialects, we help ramp up resources so our clients get the training data they need for machine learning and AI.

Appen_High-quality training data


We’ve built a strong reputation as a provider of high-quality datasets that meet the specific needs of our clients and fuel their machine learning and artificial intelligence initiatives.

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With over 20 years of experience working with global firms in multiple industries, Appen has a proven track record of providing the large datasets and quality of training data our clients need to succeed.

  • “Appen’s text-to-speech conversion has been pivotal in helping us provide more information in more ways and helping patients understand what they’re taking. “
    Anna Paonne,
    Key Account and Business Development Manager, GuildLink

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  • “The Appen team was a joy to work with. They demonstrated clear expertise in developing our training data and delivered it ahead of schedule and under budget.”
    Dr. Catriona Wallace, FlamingoAI CEO

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  • “The relationship we have with Appen makes all the difference to our success. The Appen team is a part of our team and is just as committed to quality as we are. It’s the type of dynamic you don’t find every day.”
    A leading search engine provider

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  • “Appen’s ability to prioritize and stay within the designated budget allows us to successfully deliver quality results within short deadlines. They’ve proven to be an invaluable resource.”
    Major international software provider

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  • “We had strict quality standards that needed to be implemented. This required close collaboration. The Appen team partnered with us to develop task guidelines and quality management plans. They quickly ramped the number of participants needed to meet daily and weekly data demands. Their effectiveness ensured the success of this project.”
    Global social network provider

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  • “We needed to offer consumers more personalization on our site. Partnering with Appen allowed us to collect high-quality training data for our machine learning model, which refined our algorithm much more quickly and consistently than we’ve been able to in the past.”
    Major international software provider

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Workers in the Appen Exeter office

Secure, Confidential Transcription Services: How Information Security Standards Keep Your Data Safe

More and more organisations are outsourcing transcription for investigative interviews. But how do you make sure your sensitive, confidential data is captured, shared, and stored securely? Two security standards, ISO27001 and CyberEssentials, can provide reassurance. Investigative interviews come in all
Read more

Recent posts

computer vision system

Want to Build a Better Computer Vision System? Give it the Right Training Data.

For a company to build a comprehensive dataset of annotated images takes considerable time and resources. Outsourcing the data collection and annotation efforts can help companies scale quickly.

Illustration of Neural Network

Appen’s Top Five Blog Posts from 2018

2018 was an exciting year here at Appen. We expanded into nine offices worldwide, and our global crowd of skilled annotators has grown to over 1 million people, working in over 130 countries and 180 languages. Our readers subscribe to Appen’s blog to stay on top of machine learning use cases, industry news, and best practices for getting high-quality training …

FlexJobs Top 100 Remote Work Logo

Appen Named #1 Company to Watch for Remote Jobs in 2019 by FlexJobs

Appen Named #1 Company to Watch for Remote Jobs in 2019 by FlexJobs Appen ranks top among companies hiring remote workers Sydney, NSW, Australia, January 18, 2019 — Appen is proud to announce that it has been ranked #1 on the FlexJobs’ annual list of the Top 100 Companies to Watch for Remote Jobs in 2019. This list is based …

Appen at a glance

  • Appen_130 plus countries

    Experience working in
    130+ countries
  • Appen_180 plus languages

    Expertise in 180+ languages
    Get the full list
  • Appen_20 years plus experience

    20+ years working with leading global technology companies
  • Appen curated crowd

    Access to a curated crowd
    of over 1,000,000
    flexible workers worldwide
  • Appen_3 billion judgments

    More than 3 billion
    judgments made and 500,000 hours of audio processed
  • Appen_full time employees

    Over 500 employees
    located in nine offices
    around the globe

Find jobs. Get help with your application. Learn about working with Appen.

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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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Appen is part of a growing and exciting market. Visit our investor center to access our latest reports and presentations and to learn more about our company.

Flexible Workers

Appen offers flexible, work from home opportunities in more than 100 countries. Learn more about current opportunities.