2025 has proven to be another milestone year for Y Combinator’s AI ecosystem, as several alumni and recent graduates from the accelerator continue to attract major funding rounds. From seed-stage innovation to growth-stage expansion, YC-backed startups are cementing their place in the rapidly evolving AI landscape with investors backing everything from infrastructure and automation to AI-driven decision systems.
Below is a breakdown of some of the most notable Y Combinator-backed AI startups that raised funds in 2025, based on publicly disclosed rounds.
1. Nozomio — S25 | $7M Raised
AI-powered customer research platform Nozomio made waves with a combined $7 million across pre-seed and seed rounds, led by LocalGlobe. The startup is building deep AI models for market insight generation, helping brands understand customer emotions at scale.
2. Rulebase — F24 | $2.1M Raised
Rulebase, which uses AI to automate compliance logic for financial systems, secured $2.1 million in pre-seed funding from Bowery Capital, with participation from Y Combinator, Commerce Ventures, and Transpose Platform. Its low-code policy engine has quickly become a favorite for fintech developers.
3. Julius — S22 | $10M Raised
Founded by YC’s 2022 batch, Julius raised $10 million in a seed round led by Bessemer Venture Partners. The startup focuses on helping enterprises build autonomous reasoning systems using proprietary datasets — positioning itself as an early mover in AI governance and structured automation.
4. Origami Agents — F24 | $2M Raised
Though its investors remain undisclosed, Origami Agents has drawn attention with a $2 million seed round. The startup enables AI agents to autonomously manage business workflows, showing strong traction among early B2B adopters.
5. Bluejay — S25 | $4M Raised
Bluejay raised $4 million in a seed round led by Floodgate, with participation from Y Combinator, Peak XV, and Homebrew. Its core technology allows AI systems to continuously learn from human feedback in production — an essential tool for improving LLM performance.
6. Human Behavior — S25 | $5M Raised
Backed by General Catalyst, Paul Graham, Vercel Ventures, and Y Combinator, Human Behavior raised $5 million to continue its mission of building human-aware AI interfaces. The startup’s approach blends psychology, interaction design, and generative AI.
7. Alex — W24 | $17M Raised
Alex, an AI automation platform for customer support, secured $17 million in a Series A round led by Peak XV. The company helps enterprises build adaptive support systems that integrate LLMs into live customer environments.
8. Octolane AI — W24 | $2.6M Raised
Octolane AI raised $2.6 million from notable angels like Brian Shin, Kulveer Taggar, and Lan Xuezhao, alongside institutional support from General Catalyst and Y Combinator. The company develops AI tools for data-driven sales intelligence.
9. SRE.ai — F24 | $7.2M Raised
With Salesforce Ventures and Crane Venture Partners leading a $7.2 million seed round, SRE.ai is redefining how software teams manage observability using AI-based diagnostics.
10. Motion — W20 | $38M Raised
A more mature YC alum, Motion raised $38 million in a Series C led by Scale Venture Partners. Known for its intelligent scheduling and productivity suite, Motion continues to push the boundaries of how AI optimizes human time.
11. Datacurve — W24 | $15M Raised
AI infrastructure startup Datacurve secured $15 million in a Series A, attracting investors from DeepMind, Anthropic, Vercel, and OpenAI alumni. The company is focused on accelerating AI model deployment through optimized compute orchestration.
12. Emergent — S24 | $23M Raised
Emergent, which builds next-generation AI agent frameworks, raised $23 million in a Series A led by Lightspeed Venture Partners. Notable angels include Balaji Srinivasan, Jeff Dean, and Devendra Chaplot.
13. David AI — S24 | $80M Raised
The largest raise among YC AI companies in 2025 goes to David AI, which secured a massive $80 million across Seed, Series A, and Series B rounds. Backers include First Round Capital, Alt Capital, Amplify Partners, Meritech, NVIDIA, and Y Combinator.
David AI is pioneering autonomous workplace systems that blend LLMs with organizational intelligence, a new class of AI infrastructure designed for enterprise reasoning.
14. ZeroEntropy — YC-Backed | $4.2M Raised
ZeroEntropy, founded by Moroccan entrepreneur Kenza Oulaya, raised $4.2 million in 2025 to build the next generation of AI search and retrieval infrastructure. The round included participation from YC, Initialized Capital, and a global roster of AI-focused funds.
15. BUBrowser — W25 | $17M Raised
The YC Winter 2025 startup BUBrowser raised $17 million in a seed round backed by Felicis, A Capital, Nexus Ventures, Paul Graham, and Y Combinator. It’s developing an AI-native browser designed for context-aware productivity — blending web interaction and large model reasoning.
16. Leaping AI — YC-Backed | $4.7M Raised
Leaping AI, a YC-affiliated voice AI platform, raised $4.7 million to expand its conversational agent technology for businesses across Europe and North America. The round reflects growing investor interest in domain-specific voice AI systems.
17. Artificial Societies — W25 | $5.35M Raised
Artificial Societies, from YC’s Winter 2025 batch, secured $5.35 million to build AI-driven persona environments that simulate human behavior for product testing and design, a novel application bridging psychology, AI, and simulation.
The Bigger Picture
Across these 17 startups, over $240 million in new funding flowed into Y Combinator’s AI alumni in 2025 alone. This surge highlights YC’s continued dominance as a launchpad for applied AI innovation, and investors’ growing appetite for practical, scalable AI products.
As AI startups mature beyond experimentation, YC’s portfolio shows a clear shift toward agentic systems, AI infrastructure, and enterprise intelligence.
The accelerator’s bet on these trends is paying off, not just in valuations, but in how these startups are shaping the future of intelligent software.
Editor’s Note
This list is subject to updates as more information becomes available on YC-backed AI startups that raised funds in 2025. If you spot an error, omission, or new funding update, please reach out to our editorial team at editor@villpress.com. We’d love to keep this list as accurate and comprehensive as possible.
