AfterQuery
Expert-derived training data, RL environments and evals for AI labs and enterprises building foundation models
Highlights
- New on EvolcAdded 2026-11-14
About AfterQuery
AfterQuery is an applied research lab that builds training data for foundation models. Its products include supervised fine-tuning datasets, rubric-based reinforcement learning, tool-calling RL environments, computer-use trajectories, RLHF data, and custom evaluations. The data is created by domain experts who document how they reason through professional tasks.
Its customers are AI research labs and enterprises developing frontier models, and it offers both ready-made datasets and custom engagements. The company states it works with more than 300,000 verified practitioners across medicine, law, finance, engineering and other fields. Its published work includes a dataset used by NVIDIA in improving the Nemotron 3 Ultra model and a benchmark built with Legora.
AfterQuery is based in San Francisco, where it is hiring for engineering, research and operations roles. The founding team is described as having previously worked at Goldman Sachs, McKinsey, Jane Street, Palantir, NVIDIA and Google. The company is backed by angel investors.
Product: Custom and off-the-shelf AI training datasets, rubric-based RL, tool-calling RL environments, computer-use trajectories and custom evaluations.
Jobs at AfterQuery
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Website technologies
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Website detection does not establish a paid subscription or company-wide use. Tools loaded after consent or sign-in may be missed. “No longer observed” does not prove the company stopped using a tool.