Human data

30 vendors.

• AfterQuery — Records how working professionals reason through real tasks and packages it as training data for frontier model developers.
• Anthromind — Human evaluation, RLHF preference data and post-training datasets with a scalable-oversight focus.
• Appen — Publicly listed veteran of the data industry offering training data, annotation and model evaluation with a large global crowd.
• Arena (LMArena) — Crowd-voted public leaderboard for language, image and code models, with commercial evaluation services.
• Bugcrowd — Crowdsourced security platform (bug bounties, pen testing) that also applies its researcher network to AI security testing.
• Build AI — Positions itself as a large-scale data provider for physical-AI research teams.
• CloudFactory — Managed workforce plus consulting for labeling, annotation and model monitoring.
• Datoric — Robotics training data—egocentric video, manipulation and custom teleoperation—with documented provenance.
• David AI — Audio-data research company building proprietary speech and conversation datasets for AI labs.
• Deccan AI — Supplies post-training data and RL environments for coding, multimodal and physical AI, plus off-the-shelf datasets and enterprise agent services.
• Handshake AI — The campus-jobs network runs a paid fellowship that recruits experts and students to produce AI training and evaluation work.
• Invisible Technologies — Mixes an expert workforce with orchestration software; supplies post-training data to labs and production AI workflows to enterprises.
• Labelbox — Started as labeling software; now sells expert data and training environments to frontier labs, plus an agent product for engineering teams.
• Luel — Multimodal data lab working on machine perception, supplying rights-cleared contributor data.
• Mecka — Captures and structures real-world human activity into datasets and evaluations for robotics teams.
• Mercor — Recruits domain experts at scale and turns their work into training data, benchmarks and agent-training tasks for labs and enterprises.
• micro1 — Describes itself as a data lab: expert human data, real-world training environments and contextual agent evaluations.
• OpenTrain AI — Marketplace for hiring vetted AI trainers and labelers for RLHF, evaluation and annotation.
• Pareto AI — Expert human-data provider focused on feedback signals that improve frontier models.
• Perle AI — Routes work from a large international pool of credentialed professionals into AI training and evaluation projects.
• Prolific — Self-serve platform for recruiting verified participants and experts to give human feedback and evaluation data.
• Revelo — Latin American engineering-talent company that now sells code-focused expert data, RL environments and evals to AI labs.
• Scale AI — Long-running supplier of labeled data, human feedback and model evaluations to frontier labs, government agencies and large enterprises.
• SuperAnnotate — Data infrastructure platform paired with managed expert workforces for annotation, evaluation and training-data projects.
• Surge AI — Human-data company focused on high-skill annotators and RLHF data for frontier model training.
• TaskUs — Outsourcing company whose AI services cover data labeling, RLHF and safety/red-teaming.
• Toloka — Data partner for agentic, coding and safety work, blending human experts with tooling to generate training and evaluation data.
• Turing — Draws on a large engineering talent network to produce coding and reasoning data and help enterprises deploy agents.
• Vetto — Post-training partner covering RL environments, rubrics and verifiers, RLHF, SFT and expert human evaluation.
• Wirestock — Pays a large creator community to produce photos, video and design work used as licensed AI training data.