{"slug":"ulam","name":"Ulam","website":"https://ulam.ai","tagline":"Math RL environments and RLVR trajectories","description":"Ulam, founded by math PhD and AI entrepreneur Przemek Chojecki, produces mathematics environments and reinforcement learning with verifiable rewards (RLVR) trajectory data for frontier labs.","domains":["math"],"locations":["Warsaw","London"],"founders":[{"name":"Przemek Chojecki","xHandle":null}],"teamSize":"1-10","funding":null,"raising":null,"founded":null,"notable":"RLVR trajectory datasets","entityType":"Pure-play commercial","canonicalUrl":"https://envindex.com/startup/ulam","research":null,"sources":[],"capabilityCatalog":{"startupSlug":"ulam","reviewedAt":"2026-08-16","status":"cataloged","items":[{"name":"Mathematics RL Environments","kind":"RL Environment","summary":"Math-focused RL environments; the official website could not be retrieved during this review.","access":["Unknown"],"sourceUrl":"https://ulam.ai","sourceLabel":"Official website","verificationStatus":"company-reported","lastVerified":"2026-08-16"}]},"artifacts":[],"caveat":"Legacy profile awaiting claim-level source migration"}