Zen3 delivers end-to-end, machine learning-capable data processing services, efficiently and effectively.

Using AI to your advantage.
How we do it!


Our Human-in-the-Loop services are designed to identify and collect the right set of data for your project goals. We help curate data from internal or external sources and contextualize and analyze it to standards specified by the precise needs of your business.

We provide reliable end-to-end data support—from collection to translation to contextualization, labeling, and annotation. From there, we deliver analytical insights or provide the processed data for use in your machine learning models.

Train your ML models with the right data.


    data discovery

    We help you collect relevant, high-quality, and even custom data from public and private sources, whether through internet aggregation or social media. We enable you to transform the value of old data wasting away in server closets.

    We support the collection of any data type: video, speech, map, text, and more. The collection process is supported by extensive curation and validation to ensure the relevance and absolute quality of the data.


    We have a global network of language and cultural specialists who are capable of transforming data into whatever form you need. They have experience in supporting translation, localization, and transliteration tasks with ease.

    We can seamlessly transform audio, speech, video, and images containing text into any desired language without losing essential subtlety—even when dealing with intricate local speech patterns.


    We enable you to strengthen your online reputation and boost efficiency, control, and customer trust by moderating your data in all formats. Our data teams are equipped not only to handle one-time data-generation efforts but also to support lasting engagements designed to provide a long-term competitive edge.

    For these projects, we employ the above process iteratively and continuously, augmenting analytical capabilities as machine learning models continue to learn and be better.


    It is essential to contextualize raw, uncategorized data to obtain the right and timely information to make accurate decisions. We contextualize, label, and annotate data to distill in-depth, actionable insights from multimedia data types.

    From straightforward categorization to subtle observations backed by supplementary research, we ensure to extract full depth of the dataset–whether for use in machine learning projects or other in-house analytics initiatives.


    Translation and contextualization are just the first steps toward deriving actionable business intelligence. Analyzing the data is critical to improving the decision-making process.

    Whether through AI or more traditional analysis tools, we help you understand the relevance, sentiment, intent, and meaning behind your data.




    Besides an essential medium to integrate with your data pipelines, voice is also a crucial foundation for broader applications like virtual assistants. We have a proven ability to draw meaningful insights from large voice datasets. We elevate the quality of your voice datasets by annotating and analyzing it and mapping key characteristics.



    Our image data services are designed around the fact that even relatively simple images can contain an incredible depth of data—if you know where to look and how to evaluate this data at scale. We collect and analyze large image data volumes and deliver real-time insights tailored to your business needs.



    The video is a uniquely data-rich medium—combining speech, text, and image dataflows into a single coherent asset. This unmatched informational density means that even seemingly simple videos are inordinately rich data sources requiring multi-faceted processing methods. Our proven analytical approach helps get the most value from your video assets.



    Even while processing routine documents, we ascertain likely facts about the background and intent of the author. We glean insight not only into the substantive content of the written words but also their underlying grammar, syntax, and organizational structure.



    Maps offer a vital link between detailed data insight and ground-level human experience, standing at the heart of data-driven applications ranging from ride sharing to retail.

    We specialize in extensive annotation and contextualization of maps to unlock geographical insights suited to your precise business objectives.


    Zen3 helps the most innovative companies in the world create training data sets for their AI/ML models. We also support application development, content collection, annotation, localization, moderation, machine learning, and analytics.

    360-degree Tracking of All Customer Interactions to Increase CSAT Rates 5
    Million Data Entities
    360-degree Tracking of All Customer Interactions to Increase CSAT Rates 6
    Team of Experts
    360-degree Tracking of All Customer Interactions to Increase CSAT Rates 7
    360-degree Tracking of All Customer Interactions to Increase CSAT Rates 8


    With a global team of over 1000 specialists experienced in data collection, annotation, and analysis, and fluent in diverse data types, we provide the highest quality data for the most ambitious data pipelines and machine learning efforts.



    With over 15 Million judgments done for clients in the past three years, we’ve maintained a robust quality assurance process that drives analysis accuracy of >95%. Training ensures consistent analytical standards, bringing individual disagreement rate below 5% across projects.


    Human-powered data pipelines require committed personnel. We have maintained a 0% attrition rate for HIL middle management over the years, all while scaling up hiring in support of data pipelines based across the US, Europe, and Asia. Our dedicated talent acquisition teams based in Seattle, Singapore, Hyderabad, and Delhi ensure continued access to premium talent.


    Our HIL projects center on proven cost-management practices, with prices 30-50% below leading competitors. An absolute dedication to process improvements has led to a consistent long-term throughput acceleration across all data annotation efforts. We have even proactively identified new efficiencies for large-scale labeling efforts by suggesting workflow refinement to our clients.


    With 130+ editorial resources with rich digital and print media experience engaged currently, we have the expertise to support even the most complex, media-rich data pipelines. Our subject matter expertise is coupled with deep knowledge of the content management tools required to administrate these efforts efficiently.


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    Actionable, Conversational Insights for Banking & Finance

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    Case Study - Speech

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    Whitepaper - Cloud, Big Data Analytics

    Zen3 Data Services: Human in the Loop for Banking and Finance

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    Whitepaper - Cloud

    Why the Corporate World is Flying to the Cloud

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    Case Study - Human In The Loop

    360-degree Tracking of All Customer Interactions to Increase CSAT Rates

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    Train your ML models with the right data.

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