Refresh (YC X25) builds simulation engines / RL environments with verifiable rewards for coding and computer use, partnering with frontier labs and enterprises to train AI software-engineering and computer-use 'coworker' capabilities across terminal and GUI.
How we verified this
Re-verified against primary sources (YC company profile, YC launch page, refresh.dev homepage) plus web search. Confirmed this is the CORRECT company matching the directory note ('code and computer use environments'): Refresh (YC X25, Spring 2025), founders Christopher Settles and Erik Quintanilla, building RL simulation environments for coding and computer use, partnering with frontier labs. Founded year (2025), HQ (San Francisco), and small headcount (YC lists 8; LinkedIn ~7, 1-10 band) all confirmed. Funding remains unknown: no primary source confirms total raised, round stage, or valuation; the ~$500K pre-seed figure is a single weak LinkedIn snippet, correctly left unknown. Downgraded notable_investors to 'reported' (only YC batch participation verifiable; angel/Weekend Fund unconfirmed). Customers are self-claimed 'frontier labs', not third-party verified. No trust page / SOC2 (security URL 404). Corrected headcount headline to ~8 (primary YC), upgraded headcount_band to confirmed, downgraded open_roles_count to reported, and removed an unverifiable GitHub-org attribution. Overall confidence: medium.