Discover the next generation of startups.

Memory Store

YCombinator

Company Brain.

One memory for your team's agents. Turn every meeting, Claude session, and Slack chat into context your team and agents share.

Mendral

YCombinator

AI DevOps Engineer

Mendral is an AI DevOps Engineer that observes, diagnoses, acts, and learns continuously. It autonomously handles CI failures, flaky tests, slow builds, broken releases, and code reviews, improving with every build and run. Over time, Mendral evolves into a self-improving delivery system that manages performance, quality, security, and compliance, all without manual intervention.

Metorial

YCombinator

Agentic infrastructure to power AI-native companies.

Metorial gives every employee, agent, and AI client in your company one place to connect tools and skills. Governance, access control, and tracing included.

MetricWire

YCombinator

Mobile surveys for researchers

MetricWire’s mobile platform allows decision makers, researchers, and stakeholders to harness unparalleled insights solutions, analytical tools, and deeper audience connections. Our innovation has lead to real-time digital interventions, enriched research, and evidence-based decisions. Capture more powerful data and make better decisions

Mezmo

YCombinator

Observability platform to control all of your log data

Mezmo, formerly LogDNA, is an observability platform to manage and take action on your data. It ingests, processes, and routes log data to fuel enterprise-level application development and delivery, security, and compliance use cases. Mezmo was brought to life by three-time co-founders Chris Nguyen and Lee Liu and included in the Winter 2015 batch of Y Combinator. In 2018 the company partnered with tech giant, IBM, to become the sole logging provider for IBM Cloud. Mezmo is on a mission to empower people who build solutions that shape the world. We’re doing this by delivering a platform that enables enterprises to get more value from their observability data in real time, regardless of source, destination, use case, or scale. We’re not the only ones working on this problem but we have a few things the others don’t. We’re cloud-native and know how to make the most of modern technology like Kubernetes. We have scaled a solution from zero to petabyte scale in a short amount of time, while supporting thousands of active users across multiple environments. We are hungry for change and are surrounded by enterprises telling us they’re hungry, too. We have a kick-ass group of people who are thinking about the problem analytically and are excited to change the observability world for the better. Mezmo has helped some of the world’s most innovative companies transform how they manage their systems and applications. Still, we know that we can help them get more value from their observability data by providing more flexibility and control over how they use it. This will enable teams to spend less time switching between data silos so they can focus on shipping better, more resilient, and secure products. We have momentum on our side. Last year we saw triple digit revenue growth and added 800 new customers to our roster. Recent accolades include being named to YC’s Top Companies, CRN’s 10 Hottest DevOps Startups, and EMA’s Top 3 Observability Platforms.

Microhealth

YCombinator

Digital hematology

What we do? We develop digital therapeutics to address unmet medical needs in hematology and oncology. How it works? First we build networks of doctors and patients designed to track, predict and prevent disease. Second, we validate the safety and efficacy of our interventions in pivotal clinical studies to obtain regulatory clearance (SaMD). Finally, we aim to commercialize our products as prescription digital therapeutics (DTx). Where are we now? Today, we are the standard in digital hematology: * Our hemophilia network covers 33% of all patients and providers in the US. * We bested 20+ competitors, including several Fortune 500 companies. * Our clients include: Sanofi, Bayer, Novo Nordisk, Biogen, and Roche.

Milliray

YCombinator

Technology to detect and track small drones

We make radars that can see small drones. As drones evolve faster than air defenses, detection has fallen behind. Even $50 drones now present a major threat to airports, critical infrastructure, and front-line defense. We solve this by building high-frequency radar systems, designed from the ground up to detect even the most challenging low-signature targets. This allows us to identify and track nano drones like no other solution, letting you know what's truly in your airspace.

Miniswap

YCombinator

The Marketplace for Complex Hobbies

Miniswap a marketplace for complex hobbies, starting with Warhammer. In hobbies as complex as Warhammer, finding what you want on general marketplaces is a huge pain. Filters don't work, free-form listings mean that products are regularly misidentified, and piles of counterfeit junk crowd search results. Miniswap saves hobbyists from this chaos with its catalogue of more than 20,000 unique miniatures. Sellers match their listings against Miniswap's catalogue giving buyers more information and structure as they shop. The global market for tabletop games is estimated to be worth $20B in 2025 and Warhammer alone is projected to grow to $3B by 2030. By capturing the market in this untapped niche, Miniswap is strongly positioned to bringing greater transparency, simplicity, and connectivity into adjacent verticals. Miniswap's founding team merges deep domain knowledge with elite programming expertise and years of experience in business consulting and startups. Co-founders Zak and Will met while studying together at Cambridge, bonded over their love of Warhammer and early modern history. They have been best friends ever since.

Minro

YCombinator

Identify churn risk and stay close to users at scale

Minro helps companies stay close to their users as they scale. Today, most startups have thousands of product events flowing through tools like PostHog, but still have no real understanding of who their users actually are, which users are quietly about to churn, or what outreach actually brings them back. Founders care deeply about their users, but staying close to them becomes operationally impossible very quickly. Minro plugs directly into a company’s analytics stack and turns product activity into living customer intelligence. We enrich every user with context like their company, role, LinkedIn/GitHub/Twitter, background, and likely use case, currently matching users to the correct online identity with ~80% accuracy starting from just name + email. We then identify which users are most likely to churn based on behavioral patterns, persona similarity, and historical retention signals, and help founders proactively reach out before those users disappear. Minro drafts highly contextual founder-style outreach, tracks which conversations actually convert into retention, and continuously improves the system over time. The result is a customer intelligence and retention layer that helps companies understand their users better, build stronger relationships, and reduce churn before it happens.