The 9 most sought-after startups from YC Demo Day

Y Combinator hosted its Summer 2025 Demo Day past week, showcasing the latest batch of implicit 160 startups.

As with caller batches, the bulk of startups presented AI-centric solutions. However, a wide improvement was evident. Instead of  “AI-powered” products, galore companies are present gathering AI agents oregon the infrastructure and tools needed to make them. For instance, this batch had a flurry of dependable AI solutions and caller businesses focused connected helping others monetize the “AI economy” with ads and selling tools.

We spoke with a fistful of YC-focused  investors to larn which startups they recovered astir absorbing and which generated the highest concern demand.

Below are the astir often mentioned ones:

 Autumn

What it does: Stripe for AI startups

Why it’s a fave: Many AI startups usage analyzable pricing models that often blend a level subscription interest per spot with usage-based charges, credits, and assorted add-on costs. Managing analyzable AI pricing connected Stripe is simply a time-consuming, manual process. That’s wherefore Autumn developed an open-source infrastructure that simplifies Stripe integration for AI startups. The institution says its exertion is already utilized by hundreds of AI apps and 40 YC startups. Given Stripe’s dominance successful payments and the explosive maturation of the AI market, could a specialized billing solution for AI beryllium the adjacent large fintech occurrence story?

Dedalus Labs

What it does: Builds Vercel for AI agents

Why it’s a fave: Just arsenic Vercel helps developers deploy and big startups, Dedalus Labs claims its level automates the infrastructure for gathering AI agents, cutting hours of coding down to a fewer clicks. The institution handles analyzable tasks similar autoscaling and load balancing, which it says makes cause deployment accelerated and simple.

Design Arena

What it does: crowdsource rankings of vibe coded designs

Why it’s a fave: The quality of AI to rapidly make a immense fig of designs creates a caller problem: figuring retired which ones are really good. Design Arena solves this by crowdsourcing rankings of AI-generated visuals, creating a feedback loop that forces AI models to improve. Large AI labs spot worth successful grooming their models to make amended designs, arsenic immoderate of them are already Design Arena’s customers.

Getasap Asia

What it does: Tech-enabled distributor for retailers successful Southeast Asia

Why it’s a fave: Getasap Asia was founded by Raghav Arora 3 years agone erstwhile helium was conscionable 14 years old. Since then, the startup that uses tech to present supplies to country stores, restaurants and ample supermarkets successful Southeast Asia successful nether 8 hours, has earned millions successful revenue. Getasap Asia closed a circular from General Catalyst, according to its website, and we are proceeding that the startup’s valuation was among the highest successful the full batch.

Keystone

What it does: AI technologist that fixes bugs successful production

Why it’s a fave: Founded by a 20-year-old Pablo Hansen who past twelvemonth earned a master’s grade successful AI, Keystone is connected a ngo to trim bundle breaks. The company’s AI finds and fixes bugs for clients similar Lovable and has already turned down a seven-figure acquisition offer, Hansen said. 

RealRoots

What it does: AI matchmaker for pistillate friends

Why it’s a fave: While determination isn’t a shortage of dating apps, RealRoots is tackling a antithetic benignant of loneliness. The company’s AI matchmaker, Lisa, interviews women and past organizes societal experiences to link them with compatible friends. While the AI portion mightiness beryllium performative –  conversations with Lisa astir apt wouldn’t springiness RealRoots much insights astir participants than written answers would – RealRoots whitethorn beryllium connected to something. Last period alone, the institution generated $782,000 from 9,000 paying clients, its founders said.

Solva

What it does: Automates security claims with AI

Why it’s a fave: Solva’s AI automates the astir regular tasks for security adjusters, from filling retired analyzable claims to preventing improper payouts. Just 10 weeks aft launching, Solva has already amassed $245,000 successful yearly recurring gross (ARR), a fig that has investors excited.

Perseus Defense

What it does: counter-drone mini-missiles

Why it’s a fave: With China reportedly amassing swarms of inexpensive drones, the U.S. subject faces an urgent request for cost-effective counter-drone solutions. Perseus is processing conscionable that: tiny missiles designed to sprout down drones astatine a fraction of the outgo of existing systems. Multiple branches of the U.S. subject person already invited the startup to show its solution, which could pb to hefty contracts.

Pingo AI

What it does: AI overseas connection tutor

Why it’s a fave: Apps similar Duolingo person made connection learning accessible and fun, but they often deficiency a cardinal constituent of fluency: accordant conversation. Pingo solves this occupation by allowing users to talk with its AI, which acts arsenic a autochthonal speaker. The company’s unsocial attack is proving incredibly popular, with founders claiming it’s increasing 70% monthly and earning $250,000 successful monthly revenue.