Discover the next generation of startups.

Bloomy

YCombinator

AI-powered mastery learning for K-12

Bloomy helps students learn more efficiently by using AI to identify exactly what a student should learn and when they should learn it. We provide adaptive and personalized curriculum to K-12, starting with English Language Arts, Math, and Writing.

Blue

YCombinator

Your phone finally has someone to run it. Plug in Blue, just ask.

Everyone pays someone to handle the parts of their life that don't need them personally. The cleaner, the bookkeeper, the lawn service. Nobody could handle what lives in your phone. Until Blue. Blue is a small USB-C dongle and iPhone app. Plug it in and say what needs doing. The follow-up you haven't sent, the appointment you haven't booked, the reply you owe. Blue opens the right app, does the work, and tells you when it's done. You don't touch your phone. Works with every app already on your iPhone. The team brings complementary experience at scale: Omar Abdelaziz led Google Assistant’s transition to LLMs and holds one of earliest patents in LLM-based computer control; Peter Krogh spent decades designing voice-first dialog systems and was most recently a design lead at Google DeepMind building actions for Gemini Live; Muhammad Farhan Hossain helped ship Apple Vision Pro, is named on dozens of hardware/systems patents, and has led products from prototype to mass production. We’ve built systems used by billions. Now we’re on to defining the next era of computing.

Blue Frog Gaming

YCombinator

Blue Frog Gaming

Bluma

YCombinator

Canva for short-form video ads

Bluma is the first AI short form content engine. In a post-AI world, attention is the most valuable commodity. Social media is only growing faster and faster, and we're still early. We automate your entire consumer marketing strategy by cloning your competitor's viral videos. Everything that a growth team would plan, script, produce, and edit, Bluma can clone end-to-end and at scale.

Bodyport

YCombinator

Predicting and preventing heart disease.

Bodyport’s cardiovascular sensing weight scale and predictive algorithms detect early changes in cardiac function to help prevent avoidable hospitalizations. Bodyport is initially targeting heart failure, a chronic condition affecting over 6M Americans and a leading cause of hospitalizations (1M/year) and healthcare spending ($35B/year). Bodyport’s novel scale measures cardiac output, congestion, heart rate, and other leading indicators of cardiovascular health — all in the same step patients already take to weigh themselves. Companion algorithms and software empower care teams to quickly identify at-risk patients and remotely optimize their therapy to prevent deterioration.

Booko

YCombinator

Dynamically pricing the whole economy.

Booko helps businesses that sell bookable time slots make more money by dynamically pricing their time. Unlike physical inventory, unsold time slots disappear forever, yet most time-slot-based businesses still rely on static pricing. We integrate with existing booking systems to adjust prices and incentives based on historical utilization, availability, and demand. Early customers see ~20% revenue uplift by selling time that would have otherwise gone unsold.

Boom AI

YCombinator

AI agents that recover lost revenue through real conversations.

Boom reaches out to your customers before you lose them. We run proactive outbound conversations at scale: recovering churned users, re-engaging drop-offs, and protecting revenue you thought was gone. AI agents hold real conversations with your customers over SMS, email, WhatsApp, or phone, in their language, on the channel they actually answer. Every month, companies lose 5-15% of revenue to churn, and more walks out through abandoned signups and failed onboarding. The tools built to fix this don't work. Win-back emails get ignored. Cancel flows only catch people at the door. Hiring humans doesn't scale. Boom does the one thing that works: a real conversation. 1,000x the reach of manual outreach, and the customer can reply.

Branch8

YCombinator

Branch8 helps sellers to list and manage products on e-commerce…

Branch8 offers e-commerce sellers access to a single platform that lets them list their products across a wide swath of e-commerce sites. Updating and delisting items are similarly simple. Plus, the company also offers logistics and order management – the idea is that it can be a one-stop shop for e-commerce sellers, helping them to earn more money while saving them valuable time. Branch8 is created by a team of sellers and engineers. They live and breathe e-commerce. In the past, They were a top seller selling across Lazada, Qoo10, Rakuten, Amazon and Ebay. Their team consists of individuals from Lazada, Rocket Internet, Facebook and Microsoft.

Brex

YCombinator

Business accounts, corporate cards, and spend management software.

Brex is the AI-powered spend platform for modern companies, from startups to enterprises. Combining corporate cards, expense management, travel, business accounts, and bill pay, Brex makes it easy to control spend before it happens with unprecedented efficiency and accuracy. Our mission is to empower employees anywhere to make better financial decisions, so we designed our platform to make expenses almost effortless with unrivaled automation of manual expense work and real-time tracking. Brex supports more countries and currencies than any other spend solution. Brex has tens of thousands of customers, including some of the most successful, high-growth companies, such as DoorDash, SeatGeek, Coinbase, ScaleAI, MasterClass, Indeed, Allbirds, and Superhuman. Brex offers: - Corporate cards with 10-20x higher limits - Business accounts with easy wires, same-day liquidity, fast global payments, and $6M in FDIC insurance - Reward options that include billboards, offsites, and coaching - Founder-friendly financial modeling tools - Special events and masterclasses for founders - Advanced spend management software as startups grow that includes global capabilities, travel, bill pay and more.