Languages AI training data providers.
29 companies say on their own websites that they sell datasets and work on languages. 15 of them have revenue, a valuation or funding on record, and come first, largest first. Each line below is the company's own description, linked to the page it is on.
“Our off-the-shelf datasets are the same: thousands of hours of expert reasoning, pre-built and ready to use today, spanning RL environments, coding, and the core capabilities every model needs.” its page
Data comes from: made by experts and contractors.
“End-to-end evaluation and training data. Managed for you From evaluator specification to data delivery - with the reproducibility and transparency your research demands.” its page
Data comes from: made by experts and contractors.
“Pre-built AI training datasets for LLMs. Scalable, expert-curated data for model training, evaluation, and reasoning performance.” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
“Appen provides specialist LLM training data across the full development pipeline, from initial fine-tuning demonstrations through to the expert preference feedback and adversarial testing that alignment requires.” its page
Data comes from: recorded from people and the real world, made by experts and contractors, licensed from its owners, generated.
- Invisible Technologies
#12 overall, $134M revenue, FY2024
“Model-ready, off-the-shelf data Datasets spanning professional work, code, and customer interactions. Available now.” its page
Data comes from: made by experts and contractors.
- AfterQuery
#13 overall, $100M revenue, run rate, Apr 2026
“Offers ready-to-deploy datasets across high-demand capability areas” its page
Data comes from: made by experts and contractors, recorded from people and the real world, generated, the client's own data.
“Expert-built, verified by code, and proven to transfer. ... License our off-the-shelf data for eval, SFT or RL.” its page
Data comes from: recorded from people and the real world, made by experts and contractors, generated.
- Defined.ai
#27 overall, $62.3M raised in total
“Access off-the-shelf ethically sourced and high-quality datasets across audio, image, video, text, and multimodal formats” its page
Data comes from: recorded from people and the real world, made by experts and contractors.
“Centific’s Data Marketplace provides a centralized, self-service platform to discover, enhance, and deliver trusted datasets from both Centific and third-party sources at scale.” its page
Data comes from: recorded from people and the real world, licensed from its owners, the client's own data, made by experts and contractors.
“Our flagship English dataset consists of channel-separated, natural two-speaker conversations spanning a wide range of topics.” its page
Data comes from: recorded from people and the real world, made by experts and contractors.
“Explore, license, and analyze production-ready datasets or brief us on a custom build we scope from scratch.” its page
Data comes from: made by experts and contractors, recorded from people and the real world, licensed from its owners.
“Audio, video, visual, and doc intelligence datasets for mid/post training and evals.” its page
Data comes from: made by experts and contractors.
“Original corpus of 1,000 Chain of Thought math problems, including step-wise corrections and annotation, intersecting 60+ disparate subdomains of formal and applied mathematics.” its page
Data comes from: recorded from people and the real world, made by experts and contractors.
“Access continuously refreshed, expert-labeled multimodal data designed for teams building real-world robotics systems.” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
“Curate from millions of hours of content and 100+ video, audio, and gaming datasets.” its page
Data comes from: licensed from its owners, the client's own data, recorded from people and the real world.
“We source long-form, natural conversations between real speakers so voice models learn interruptions, turn-taking, accent variation, and messy production speech.” its page
Data comes from: recorded from people and the real world, made by experts and contractors.
“We empower more than 900 AI enterprises with our high-quality off-the-shelf datasets, and magnificent data collection & labeling services.” its page
Data comes from: recorded from people and the real world.
“Datoric develops custom datasets for robotics, treating research, collection, verification, and production as one continuous process.” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
“Security environments, adaptive red-teaming evaluations, and adversarial training data for AI agents.” its page
Data comes from: made by experts and contractors.
“Humyn Labs builds custom AI training datasets across voice, image, video, and sensor modalities collected and annotated by verified domain experts with multi-layer quality control.” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
“Large-scale conversational datasets across 22 official Indian languages.” its page
Data comes from: recorded from people and the real world.
“Access pre-built, curated datasets ready for immediate use.” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
“PhDs and professionals in mathematics, medicine, law, finance, and engineering providing expert-grade training data.” its page
Data comes from: made by experts and contractors.
“Shaip’s AI Data Catalog & Licensing Marketplace gives AI teams a single source for buying and licensing pre-labeled, commercially cleared training datasets across text, speech, image, video, and multimodal formats.” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
“Train your ML models with text, audio, image, video, locale-specific, or synthetic AI data” its page
Data comes from: made by experts and contractors.
“We prepare ready-to-use and custom datasets supporting a range of AI use cases” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
“High-quality labeled datasets with real-world data and synthetic samples for AI models, machine learning, and generative AI” its page
Data comes from: recorded from people and the real world, generated.
“Pre-built datasets spanning RL environments, coding, and core capabilities.” its page
Data comes from: made by experts and contractors, the client's own data.
“Scripted and spontaneous recordings from diverse speaker populations.” its page
Data comes from: made by experts and contractors, recorded from people and the real world.
