Y Combinator W25

Y Combinator's Winter 2025 batch comprised 168 companies, reflecting the new tri-annual (and soon quad-annual) cohort model. Each company received $125,000 for 7% equity on a post-money SAFE, plus an additional $375,000 uncapped MFN SAFE, totaling $500,000. The W25 batch occurred during continued venture capital strength: funding was flowing, founder optimism was high, and the startup ecosystem was thriving. AI applications were fully mature in founder consciousness, with companies building sophisticated AI-powered products across all sectors. The cohort included founders working on climate technology, fintech, healthcare, consumer software, B2B tools, hard tech, and AI-specific applications. The W25 batch represented YC operating at a new steady-state: with four cohorts per year, the organization was producing approximately 700-800 funded companies annually, an extraordinary rate of founder funding and mentorship. The batch also marked geographic diversity: YC's founders came from around the world, with companies addressing problems across every continent. For investors, founders, and analysts interested in contemporary startup trends, founder demographics, AI adoption, or YC's modern operating model, W25 offers immediate and valuable reference material. The batch represents YC in its current, highly productive era.