Supplies large-scale pretraining and post-training datasets, including code and web, document, and video data, plus verifiable STEM RL environments and custom data sourcing for frontier AI labs.
What they offerTraining data, RL environments
Type of workCoding, Science, Math, Enterprise workflows
Hillclimb creates custom mathematics-focused reinforcement-learning environments and supervised fine-tuning data from expert problem-solving, selling them to frontier AI labs to train models and research agents.
What they offerRL environments, Human data, Training data
Innodata provides AI developers and enterprises with training data, human feedback, annotation, reinforcement-learning environments, model evaluations, and red-teaming services for building and improving AI models and agents.
What they offerRL environments, Human data, Training data, Evals and benchmarks, Data annotation
Type of workCoding, Computer use, Browser, Enterprise workflows, Finance, Legal, Medical, Science, Math, Security, Robotics and physical, Multi-domain
Data sourcesBuilt from customer data, Expert or contractor-created, Synthetic / generated
Navaday supplies expert-created training data and model evaluations across professional and technical fields. It manages specialists who write examples, correct existing data, compare model answers and produce held-out test sets. It also prepares and helps license business records for AI development.
What they offerHuman data, Training data, Evals and benchmarks
Type of workFinance, Legal, Medical, Science, Math, Coding, Enterprise workflows
Data sourcesExpert or contractor-created, Built from customer data, Licensed real-world data
Prime Intellect sells AI labs and developers an open stack for reinforcement-learning environments, model evaluations, hosted training, inference, sandboxes, and GPU compute to build and improve agentic models.
What they offerRL environments, Evals and benchmarks, RL infrastructure
ReasonCore provides expert-curated AI training datasets, reinforcement-learning environments, and adaptive evaluations for frontier AI labs, emerging AI labs, and enterprises developing or deploying advanced models.
What they offerRL environments, Training data, Evals and benchmarks, Human data, Data annotation
Type of workRobotics and physical, Science, Coding, Finance, Math, Enterprise workflows
Data sourcesBuilt from customer data, Expert or contractor-created
SuperAnnotate sells AI data software and managed expert services to AI labs and developers, covering multimodal annotation, training data, model and agent evaluations, and reinforcement-learning environments.
What they offerRL environments, Human data, Evals and benchmarks, Data annotation, Training data
Type of workMulti-domain, Medical, Legal, Science, Coding, Browser, Computer use, Robotics and physical, Math, Enterprise workflows, Finance
Surge sells AI labs and developers expert-built training data, human feedback, evaluation benchmarks, and interactive reinforcement-learning environments to train and assess AI models and agents.
What they offerRL environments, Training data, Evals and benchmarks, Human data, Data annotation
Type of workMulti-domain, Coding, Enterprise workflows, Finance, Medical, Science, Math, Legal
Symbal supplies AI labs with multimodal post-training datasets, private evaluations and benchmarks, and human-in-the-loop data; it also builds enterprise agents using customers’ first-party workflows.
What they offerTraining data, Evals and benchmarks, Simulation
Type of workMulti-domain, Science, Math, Finance, Medical, Legal, Robotics and physical, Coding
TELUS Digital supplies AI labs and developers with expert-built training data, annotations, agentic RL environments, red-team testing and evaluations, plus custom multimodal and physical-AI datasets and managed data-collection services.
What they offerRL environments, Human data, Training data, Evals and benchmarks, Data annotation
Type of workCoding, Enterprise workflows, Finance, Legal, Medical, Math, Robotics and physical, Science, Security, Other, Multi-domain
Data sourcesExpert or contractor-created, Built from customer data
Toloka supplies AI labs and developers with human-expert and synthetic training data, agent environments, evaluations, and red-teaming to build and assess AI models and agents.
What they offerRL environments, Human data, Evals and benchmarks, Training data, Data annotation
Type of workMulti-domain, Coding, Computer use, Enterprise workflows, Math, Science, Robotics and physical
Turing supplies AI labs with training data, evaluations, and RL environments for coding, enterprise knowledge work, and STEM. It also helps large enterprises build and deploy AI agents in important workflows.
What they offerRL environments, Training data, Evals and benchmarks, Human data
Type of workMulti-domain, Coding, Enterprise workflows, Science, Math, Finance, Legal, Medical, Computer use, Security
Ulam sells reasoning datasets, expert-reviewed traces, benchmarks, and verifier-backed RL environments—primarily for mathematics and STEM—to AI labs and developers.
What they offerRL environments, Training data, Evals and benchmarks, Human data
Vals AI sells evaluation software, expert-built benchmarks, and review tools to AI labs and enterprise engineering teams testing models and AI applications on practical, domain-specific tasks.
What they offerEvals and benchmarks, RL infrastructure
Type of workMulti-domain, Finance, Legal, Medical, Coding, Math
Vmax markets Campaign, a self-play task-generation and RL platform that uses developers’ proprietary data and evaluations to create training environments and refine agents on new task examples.
What they offerRL environments, RL infrastructure, Evals and benchmarks
Type of workCoding, Math
Data sourcesBuilt from customer data
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