Your trusted partner for Ethical AI data

Embrace Ethical AI effortlessly with our dataset’s marketplace. Partner with us to access transformative solutions with ethically collected data.

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Explore the world's largest marketplace for training data

STEM Q&A Pairs

STEM Question-Answer Dataset of 150,000 units coming soon

Discover your ideal dataset

Unlock your AI capabilities with the largest selection of ethically collected, diversified off-the-shelf datasets. Select the data that best serves your needs or take advantage of our custom data services and expert support.

Spontaneous SpeechScripted Monologue SpeechInteractive Voice Response DatasetsDatasets for Large Language ModelsLive DataImage and Video DatasetsNLP


Ethically sourced data and transparent practices

Ethically sourced data and transparent practices

Our data is collected and managed with the highest ethical standards, ensuring that the development of AI solutions is responsible and fair. We maintain transparency in our data collection and handling processes, prioritizing the privacy and trust of our clients and data contributors.
Extensive data & evolution

Extensive data & evolution

Tap into our broad spectrum of off-the-shelf datasets and rely on's commitment to perpetual dataset development to stay ahead in AI innovations.
Top-tier talent

Top-tier talent

Collaborate with our exceptional team of AI professionals, boasting impressive backgrounds and unparalleled experience, to drive your AI projects to new heights.
Quality control

Quality control

Our expert team reviews and refines datasets rigorously, ensuring accuracy and meeting top-quality standards for dependable AI project outcomes.
Tailored datasets

Tailored datasets

Optimize AI solutions using our customizable off-the-shelf datasets, which can be sliced and tailored to your requirements, aligning with project goals and maximizing value.

Trusted by


What our customers say transcription accuracy is excellent, quickly adapting labeling guidelines for new concerns and evolving priorities as they arise. They’re more than our transcription & annotation vendor - they are our partner and enabler in achieving state-of-the-art ML performance.
Ben Stern
VP, Software Systems R&D
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We are thankful for’s unrelenting efforts in creating video, audio, and word datasets, carefully scripted and crafted yet delivered at an extremely high velocity for our neural networks to iterate and improve continually. We are delighted by their rigor and reliability. When all levers are churning, and engines are firing – music is created.
Saurabh Saxena
Head of Technology, VP R&D (EmotionAI)
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The Virtual Assistant project launched by AMA, through the strategic partnership with embodies the fusion between innovation and technology, boosting the public sector with private sector knowledge. This combination of efforts and expertise has enabled the creation of an AI solution at the service of the public sector Portuguese.
João Dias
President @AMA - Agência para a Modernização Administrativa, IP
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About us

Defined AI, specialized in curating and providing high-quality & ethical data for AI applications, was founded in 2015 by Dr. Daniela Braga. With an impressive $81M in funding, Dr. Braga stands out as the leading woman in AI venture capital globally. Our renowned portfolio features exclusive data from our unique Neevo platform, a wide selection of non-exclusive data via our advanced marketplace, and an innovative Conversational AI solution named, which has been recently backed by the Portuguese Recovery and Resilience Plan. We're proud to have received numerous accolades, including recognitions from the World Economic Forum, United Nations, Forbes, and more. Dive deeper into our story and achievements to see why we lead in AI innovation.
Viva TechnologyWorld Economic ForumForbes 2021 America's best startup employersInc. 5000Deloitte North America Fast 500
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We can also help with

Explore our diverse range of offerings, projects, and opportunities to connect, designed to enhance and support your AI journey:

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