Grocalo (S26) is an AI brain that runs content for creators. We understand their audiences, using video understanding and deep platform analytics to bottle up the taste behind each creator and personalize and distribute content to creator specific audiences. Grocalo generated 2B views and gained 4M followers for our creators in the last 2 months. Some of our clients include Jimmy O. Yang (Comedian, 11M followers), King Bach (72M followers), Leenda Dong (28M followers), Steven He (30M followers), Sheena Melwani (18M followers), and Jeannie Mai (TV host, 6M followers). Content should be personalized and data-driven. We’ve developed the most advanced AI brain replicating viral content for any given audience.
GroundControl builds mission-critical software for manufacturers in highly-regulated industries (aerospace, defense, medical) Our core product automates lengthy, complex, and regulated quality documentation in aerospace manufacturing. As an example, the Boeing 777 is made up of over 3 million parts sourced from manufacturers around the world. These manufacturers must complete quality documentation for every part on this aircraft (machined parts, printed circuit boards, wire harnesses, assemblies, and more). GroundControl helps manufacturers complete this required documentation accurately, in minutes instead of days.
Your immune system is your body’s best weapon and defense against cancer. It is only when it is overcome that cancer develops into full blown disease. Dendritic cells sit at the helm of the immune system, directing and dictating immune responses. Data has shown dendritic cells are often dysfunctional in cancer patients, and that this dysfunction is a bottleneck for other therapies. Guardian Bio’s approach is focused on creating a dendritic cell-based product which drives anti-tumor activity through activating the killers of the immune system AND training them against multiple cancer targets. We take stem cells from cancer patients, turn them into specific therapeutic dendritic cells specially trained against that patient’s tumor, and re-introduce them back into the body. Our therapeutic dendritic cells revitalize the killers of the immune system and give them the kickstart they need to fight - and win - against cancer.
Gullak is a mobile app that automates savings & invests these in Gold. We launched in India 60 days ago and have grown from 0 to 40k transacting users and hit a monthly GTV of $280K already. We are growing 25% week on week. India is a nation of savers but the way the majority of India saves is non-smart & does not create wealth. There are 200 Mn Indians who save manually in bank deposits, the returns from these instruments do not even beat India's inflation. Gold is an instrument that India loves - 30Bn worth gold is purchased in India every year by middle income households. Gold has great cultural significance in India & there is high familiarity with the asset class. Despite gold being a familiar asset class & giving 5% higher returns than bank deposits, 200 Mn Indians still save manually in these non wealth creating bank deposits. This is largely because the ways to save in Gold required painful discrete activities such as manually accumulating money to buy gold, going to offline stores to buy this gold, incurring storage charges & more. The minimum ticket size for purchasing gold at these stores is $50 adding to more friction to saving in Gold. Using automated savings, Gullak now makes it extremely easy for users to save small amounts regularly($1/day) in digital Gold.This was not possible a year ago because the underlying infrastructure(UPI Autopay) was missing. With 50 Mn Indians saving $2/day & with gold backed lending, this is a $1.5Bn market opportunity. Gullak’s Founding team is the team which built BHIM UPI App(10Mn Downloads in 10 Days), this was launched by the PM of India. We built large scale payment systems for partners like GooglePay / Amazon, processing more than 30Mn payments/day. This is the same team that has built more than 40+ consumer brands & their initial growth strategy.
HEVN is a platform where companies can open business accounts with sponsor banks across the US, Europe, the UAE, Latin America, and Puerto Rico, and then move money between those accounts using stablecoin rails in minutes. It's a faster and more efficient alternative to SWIFT for international businesses that care a lot about speed of transaction and speed of complience checks. We're using AI to automate routine payments, paperwork and RFIs and minimise the losses that companies incur on stuck international wires.
HOKALI is the marketplace for buying after-school programs and enrichment activities with high-quality, vetted vendors in the US. We simplify the process of booking, organizing, and managing after-school programs and camps for schools.
HYBRD helps you get stronger and faster. It pulls in all your training data, from every wearable and workout tracking app you use, and uses it to personalize training plans specifically to you and your goals Existing products tend to focus on only one type of exercise (either cardio or strength), leaving hybrid athletes juggling disconnected tools. As hybrid athletes themselves the founders found this frustrating and set out to build the unified approach they needed for their training. Three of HYBRD’s founders previously worked at WHOOP, each leading teams across product, growth and analytics. Ruiters, the CTO, was a senior tech lead at AWS. In parallel, Mats was a member of the US national rowing team and Ben, Shoe and Ruiters have all completed Ironman 70.3s. The team's VP of tech/founding engineer Michael rowed at Cornell and is ex-WHOOP as well.
Communications channels are your company's most critical blindspots. While traditional monitoring focuses on files and network traffic, risks hide in everyday conversations. Haleum AI leverages the latest in LLMs to stop financial fraud, IP theft, compliance violations, and insider threats across your communication platforms
Halmos Labs builds automated biotech R&D on the principles of validity and interpretabillity. We run research, and simulations answering open questions ranging from wetlab experiment design to full cancer vaccine manufacturing.
Post-order operations are one of the least automated parts of e-commerce. After an order is placed, teams still spend their days tracking shipments, chasing exceptions, processing returns, adjusting invoices, and answering “Can you check this?” requests. This manual busywork lives outside core systems and scales linearly with order volume, forcing brands and 3PLs to keep adding headcount as they scale. Handled is an operations automation platform for e-commerce brands and the 3PLs that run their order fulfillment. We execute the manual work that happens after an order is placed by unifying post-order data across commerce, warehouse, carrier, and support systems. Handled gives teams real-time visibility across orders, shipments, returns, and inventory in one system — eliminating the need to dig through disconnected tools or react only after customers complain. When issues occur, Handled automatically executes the follow-up work, such as resolving shipment delays, processing returns, filing claims, or making order and billing adjustments, without manual back-and-forth. By combining visibility, issue detection, and automated execution in a single AI-powered operational layer, Handled replaces manual coordination with software-driven post-order operations in a large, recurring market tied directly to e-commerce volume.
Harbera helps clinic keep their doctors credentialed and compliant. Our AI software continuously monitors and proactively helps admin teams re-credential doctors, preventing denied claims, disruptions in patient care, and lost revenue caused by doctors falling out-of-network.
Harbor is building an AI-native contract research organization (CRO) for clinical trials. We started with an AI-native system of record for clinical trial data (electronic data capture system), grew the software business to seven trials and ~$187k in contracted software revenue over the next twelve months, then expanded into full-service trial execution and signed our first CRO contract worth $1.93M over three years. Clinical trials consume 45% of all new drug and device development spend. While some of that goes to software, sites, and patients, the largest line items are services: project management, monitoring, data management, site coordination, source verification, query resolution, record reconciliation, and analysis. Today, drug and device companies outsource clinical operations to legacy CROs and their massive teams, which is why the CRO market is $82B annually. Harbor delivers the regulated services companies buy from legacy CROs, but built around our AI-native system of record from day one. Our software already automates the core data workflows: study build, data capture, query generation, monitoring, signing, and database lock. Because we own the system of record, we can expand into the surrounding service workflows: site contracting and billing, subject engagement and retention, statistics, reporting, and more. We built Harbor because we lived through the problem. Albert spent four years in clinical trials and regulatory strategy at a medical device startup, taking an unproven wearable from first-in-human trials to FDA authorization. Nate brings the technical depth, having built scalable software at Google and Ramp and served as employee #1 at a previous YC startup.
Harmoney is an agentic AI solution for fixed income research, portfolio optimization, and credit analysis for buy-side and wealth managers. We not only make financial analysis faster and cost-effective but also unlock things that could not be done manually before.
Hatchet abstracts away the infrastructure for managing task queues and message brokers, so you can focus on writing your background task and workflow logic. With Hatchet, you can run slow OpenAI requests in the background with async tasks, chain complex tasks together into workflows, and set retries and timeouts to recover from failure.
Haystack helps you review and merge code faster, without sacrificing quality. Haystack is a code review platform that breaks down pull requests into digestible chunks and lays them out on an infinite canvas, replacing traditional line-by-line diffs in GitHub with a structured, visual walkthrough.
HealthSpark empowers physical therapists (PTs) to start, run, and grow their own independent practices. Our AI-native “business-in-a-box” takes care of the administrative work—credentialing, insurance billing, patient onboarding, documentation, and scheduling—so PTs can focus on patient care, not paperwork.
Storio is a content platform where creators can create original fiction or derivative works based on other fictional worlds. Creators write fictions 10 times faster on Storio. It's a place for community to fully indulge in the fictional world that they wish they were in.
Hebbian Robotics builds APIs for robotics data teams to verify data quality for model training. Our customers use us to build quality control pipelines in just a few lines of code, with custom models 10x faster and 8x cheaper than general foundation models. https://hebbianrobotics.com/ https://github.com/Hebbian-Robotics/hflow
As AI agents replace traditional software, they need a way to store, recall, and reason over contextual data. HelixDB gives them all of that in one system. We’re building the knowledge infrastructure every AI agent will depend on.
Every serious robotics lab is bottlenecked on the same thing: demonstration data. The field has converged on egocentric video and hand pose as the substrate, and both are now cheap to collect at scale. What neither of them contains is force. A video of someone picking up an egg and a video of someone picking up a rock are nearly identical in pixel space and nearly identical in joint angles. They differ almost entirely in a quantity nobody is recording. Policies trained without it learn geometry and inherit no sense of touch. Hemlock closes that gap at the source. Our device, the Bracelet, is a wrist-worn surface EMG band that reads the electrical activity of the forearm muscles that actually drive the hand, which means it recovers contraction force directly rather than inferring it from motion. This distinction is the whole thesis: force cannot be reconstructed downstream of kinematics, because a hand squeezing hard isometrically and a hand resting can occupy the identical pose. Muscle signal is the only non-invasive channel that separates them.
Henry is an AI copilot for commercial real estate (CRE) brokers that seamlessly integrates a brokerage’s internal data set with external sources to generate custom presentations and financial modeling for deals. Our mission is to help CRE brokers close more deals faster, earning more while doing less repetitive work. We’re initially focusing on enabling brokers to generate deal decks in seconds—a task that typically consumes 20+ hours a week across multiple departments within a brokerage.
Heptabase is an intelligent, visual knowledge base built for students, researchers, and lifelong learners. Our product helps you master anything you learn and do your best research with AI. Heptabase is backed by Y Combinator, HOF Capital, Kleiner Perkins, Moving Capital, Tonic Fund, and other investors, including the founders of Socialcam, Triplebyte, Codementor, and more.
HeroUI makes it simple for AI agents and developers to build beautiful, accessible, production-ready interfaces for web and mobile. In the AI age, design matters more than ever. Every micro animation, color, and interaction shapes how users experience your product. HeroUI makes that level of creativity and craft simple
Hesper AI builds AI agents that investigate P&C insurance claims end to end. Hesper’s agents read the claim file, detect tampered documents, verify facts, check coverage, flag inconsistencies, and produce an audit-ready case file in minutes, so insurers can check every claim. We work with Claims and SIU orgs at Carriers, MGAs and TPAs,
Hessian is the platform for automating business operations with AI agents. We forward deploy on-site to map the work, and build the agents on our platform to run it end-to-end. Unlike off-the-shelf tools that don't know your business, you get a partner that owns the software and operates it every day. Why now? Coding agents have matured to the point where, combined with our engineering judgment we've built across a decade of shipping production systems, we can scale forward-deployed engagements with minimal headcount. Furthermore, our FDE agents and tooling will accelerate how quickly we automate workflows on our platform. We're already saving our customers hundreds of hours a month. Trillions of dollars a year are spent on knowledge work, and we're building the standard for how every company deploys, operates, and governs the AI agents that do it.
Hexa helps industrial distributors automate their sales and procurement workflows to quote faster and win more bids.
HeyClicky sits right next to your cursor and sees everything you see. ask a question out loud and it walks you through whatever you're working on. Or say “HeyClicky Agent” and it'll spin up an agent to build, research, or do whatever for you in the background.
Heyfood is building the “Doordash for Africa”. But unlike Doordash in America, we make a profit on every single delivery, from day 1. We are targeting Millennials and Gen Z urban professionals in Africa’s top 70 cities, withing 10 years there will be 140m number of these people, we assume they will want to order food once a week, we make $1 per delivery, this represents a $51B market.
We build physical agent harnesses to enable AI to debug, validate, and ship functional hardware and software.
Burdensome documentation is the #2 reason causing burnout for physical therapists. More than half of all physical therapists have to write documentation in their free time without pay. up to 2 hours a day. Our AI Scribe listens, generate first draft of clinical documentation in minutes, and sync reviewed documentation to EMR in 2 seconds. With us, clinicians can finish documentation 70% faster and become happier.
Hippo Build is building the Operating System for the Construction industry. We automate and optimize back office functions and the supply chain of Small and Medium Construction Companies. We save our customers hours everyday, and 1000’s of dollars every month on better sourced materials. And it takes only minutes for them to onboard We charge a small SaaS fee, + 1% transaction fee for the materials sourced. We are integrated with multiple marketplaces and providers, letting us automatically source better priced materials. This allows us to stay affordable for the SMB, whilst earning $20-100K per company.
HireGlide is an AI job board where companies post roles and candidates either apply directly or take a generalized assessment to be matched to opportunities. We screen everyone and pass companies the candidates who fit, and anyone who doesn't fit one role can be redirected to others where they're a better fit.
Hiro is an autonomous security operations platform that automates work such as SOC 2 compliance, vulnerability remediation, security questionnaire responses, access reviews, and alert triage. Its AI agents remediate issues according to risk tier, with sandbox testing, automatic rollback, and human approval required for high-risk changes. Hiro targets mid-market companies facing their first enterprise security requirements.
HLabs is making an industrial supply chain for building robots in the USA including electronics and actuators. Robotics is going to be one of the largest industries the world has ever seen. Teams have to buy what they can from overseas and then build everything else in house just to get something to move. HLabs is producing a plug and play set of robotic primitives to accelerate the early development and then working with larger scale production robots for bespoke designs. Early customers span across household robotics, humanoids, robot arms, quadrupeds, and defense. Hlabs is founded by Paul, a second time YC founder who also participated in the W21 batch with Mystic. He ran Mystic as CEO for 6 years.
Homeschool.com is an EdTech resource and community platform for homeschooling families, offering articles, curriculum and product reviews, worksheets, podcasts, curriculum discovery, state-law information, and parent and student forums. It monetizes through advertising opportunities for family-friendly products and services, while differentiating through its broad homeschooling content and community resources.
Hona is a client experience platform built for law firms to simplify and strengthen communication with their clients. Legal work can be complex and difficult for clients to follow, which is why Hona helps firms proactively keep clients informed at every stage of their case. Through automated updates and a clean, user-friendly dashboard, clients can easily track progress, understand key milestones, and know what to expect next. In addition to status updates, Hona allows clients to upload documents, securely message their legal team, and share feedback—all in one place. Hona integrates seamlessly with the law firm's existing case management systems, making it easy to implement without disrupting day-to-day operations. Hona's long-term vision is to transform client communication across the legal industry by making clarity and transparency the standard.
The way people use data is constantly changing. Data teams must support every new context without breaking the shared truth. Honeydew’s semantic layer does it automatically. We validate each change and update every data flow. Using Honeydew, data teams can support 10x more data users - without more engineers or compromising integrity.
Hoplite builds a keyboard-driven dashboard for launching and managing cloud coding agents. Developers can spin up coding agents that run in the cloud and interact with them from the dashboard or from their phone via iMessage.
Our customers use Hopper today for two things: replacing GPT-4.1 with Gemma-4 (6x faster), and replacing Elevenlabs with qwen3-tts (8x cheaper).
Human Behavior uses vision models to watch all user web sessions so you know exactly how users use every part of your product.
Humand transforms how companies digitize their internal communication, culture, and HR processes within one user-friendly app. As a result, Humand provides every company with a digital Community to centralize every company-employee interaction. Humand's digital Communities are powerful, customizable and easily adapt to the needs of every company, no matter the industry, size or region. Companies that implement Humand benefit from the following suite of Mini Apps, which are getting smarter thanks to the power of AI: + Forms & Smart Workflows 📋 + Internal Social Network ❤️ + Chat 💬 + Time Off 🏝 + Magazine 📰 + Surveys 📊 + Smart Intranet 📲 + Kudos 👏🏻 + Learning 📚 + Onboarding 🎉 + Org chart 👥 + Company Files and Employee Documents 📂 + Perks & Benefits 🥂 + Birthdays & Work Anniversaries 🥳 + Employee Development 🥇 + Electronic Signature ✍🏻 + Smart Tickets 📧 + Marketplace 🛍 + Calendar & Events 📆 + Agenda 🔎 + Integrations 🔗 More than 1,000 companies use Humand. Implemented by ArcelorMittal (biggest steel producer in the world), Tenaris (global leader in steel pipes production), NSG group (among the biggest glass producers in the world), and many other organizations across different countries. Humand enables all workers, particularly those without direct access to a computer at their desks, to stay connected with their company anywhere, anytime. Humand enhances internal communication speed, streamline information flow between collaborators, and enable instant, targeted reach to all employees with push notifications tailored to their needs. Companies that adopt a digital Community powered by Humand experience an enriched work environment, heightened employee camaraderie, and a surge in productivity, all contributing to a thriving and connected workforce.
Humoniq is building the first AI-Native BPO for the travel & transport industries, which outsource $20B of customer support each year. Our AI-native approach improves speed, accuracy, and satisfaction. Our team is uniquely equipped to solve this challenge. We previously grew a travel management company, Flightfox (YC S12), to $22M/yr. We handled thousands of customer requests each month, which exposed the limitations of traditional outsourcing.
Hyper is a shared brain that plugs into all information flowing inside a company, creates a self-maintaining knowledge graph, and makes your AI employees better and ultimately saves people time. Our in-house memory system scores at or above SOTA on most public benchmarks, and we've built a custom eval suite to measure our precision/recall metrics. In the last 12 days since launch, we've gotten top 5 / top 12 on hacker news & product hunt, onboarded 50+ teams, grown 0 to 1k MRR, and are scoping paid design pilots with co's like Razorpay and Snorkel AI. Our whole lives we've packaged hardcore engineering into beautifully simple products, and that's how we’ll win this platform shift.
If your team uses Cursor, Claude Code, or Codex to ship, you've felt it: the AI is great at writing code, mediocre at debugging it. When something breaks in prod, you're back to grepping logs, adding console.logs, redeploying, and hoping the AI's guess is right. HyperProbe fixes this. Your coding agent dynamically drops non-breaking probes into your running services, straight from your IDE. When a probe fires, HyperProbe captures and sanitises the exact variable state, feeding your agent real evidence instead of flat logs. This fixes prod incidents in minutes from the exact same window where agents write code, without ever redeploying to add a print statement. Under 1% CPU overhead. Automatic PII redaction. Built for backend teams shipping AI-written code today. Install in 60 seconds, see your first investigation in 10 minutes. That's why we call HyperProbe the runtime data layer for AI-native software.
Emebedding third-party apps and websites can often be a nightmare due to incompatible platforms, security issues, and poor UX. Adding multiplayer functionality to these embeds makes this problem exponentially more difficult. Enter Hyperbeam—an API that lets you embed virtual computers anywhere, including web, mobile, VR, and even VSCode. You can then open any third-party website or application, synchronize audio and video flawlessly among multiple participants, and add multi-user control with just a few lines of code. Uses cases and customer segments include remote learning, virtual offices, online casinos, productivity, watch parties and more. We are three technical founders from the University of Waterloo, and worked as engineers at Facebook, Yahoo, and Lyft. Our technology is battle-tested–we currently stream over 1.25M hours of video per month across every continent. https://hyperbeam.com?ch=yc
Hyrex is a task orchestration framework that uses PostgreSQL (or Hyrex Cloud) as a durable task queue. Define tasks in Python or TypeScript, send them to be processed asynchronously, and let Hyrex handle the rest. Hyrex tasks are COLD: Controllable, Observable, Large-Scale, and Durable!
IMPACT builds autonomous interceptor drones that ship in sealed containers. The box sits at the site it protects, data centers, power grids, airports, bases, with no crew on the pad. When sensors cue a hostile drone, an interceptor pierces its own frangible lid, launches, and rams the target, guided by onboard vision that keeps working when GPS is jammed. Legacy effectors cost $1M+ per shot against $30k threats; ours cost less than the threat and scale with the swarm, the same class of interceptor already downing Shahed drones over Ukraine. Sites subscribe to protection instead of buying missiles, hardware, reloads and monitoring included: Air Defense as a Service. 180M+ USD in signed letters of intent.
INFevo is an AI-native biotechnology company building AI-based molecular simulation and computational drug-discovery tools for biopharma customers; it commercializes via development partnerships, platform/API access and services, differentiated by its ‘AI-native’ architecture and claim that life is computable.
ISSEN is an AI conversational language app that helps you become fluent. Your on-demand voice tutor is personal to you, adapting lessons and chats to your particular interests, learning style, and goals. Our mission is to transform language learning by offering a level of connection, effectiveness and fun that, until now, only human teachers could provide.
Iliad is an AI tool for creating stylized artwork, textures, illustrations, and 3D assets. Users sketch, upload images, or write prompts, then guide results with visual controls like brushstrokes, masks, and transform sliders. Iliad is built for artists, game developers, and designers.