10 Exciting AI Startups From YC Demo Day That Are Replacing Boring Office Work

Y Combinator’s Spring Demo Day spotlighted AI agents built for real-world jobs, not hype. Out of 144 startups, ten teams stood out by automating tasks people dread, from phone support to tax filing. With working demos and fast product cycles, these founders showed how their bots can get the job done.

Aegis came in with an aggressive goal: to help hospitals recover denied insurance claims. Its software writes, files, and manages appeals without a human. Airweave’s team built a workplace AI that answers internal questions by searching across Notion, Slack, and internal docs, cutting time wasted digging for info.

Approval AI’s mortgage co-pilot handles rate comparisons, lender back-and-forth, and document prep. Atlog trains voice agents that answer phones and close sales for e-commerce stores. Beluga Labs helps content creators track income and catch tax breaks automatically.

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Casco tests a company’s own AI systems to find weak points before attackers do. Galen AI merges health data from wearables and medical charts to give patients and doctors real-time updates. Mbodi AI reprograms warehouse robots with spoken instructions—no retraining required.

Developer tool Plexe lets engineers create custom agents using simple prompts. And Willow flips the script on communication apps: talk instead of type, and it sends out polished, on-brand messages.

All ten landed YC’s standard $500,000 deal, and many walked offstage straight into investor meetings. You can read more about it in the Business Insider report here.

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