River AI is a Palo Alto–based AI startup founded by former xAI co-founder Igor Babuschkin, building a full-stack platform for custom, open-weight mode…
River Markets is a San Francisco-based prime brokerage for prediction markets, giving professional and institutional traders a single interface to rou…
Discovered Materials (formerly Matforge, YC Spring 2026) builds swarms of AI agents that act as "AI scientists" to design candidate semiconductor mate…
Malachyte builds real-time behavior intelligence and personalization AI for e-commerce sites, constructing a live behavioral profile for every visitor…
Intelligence is a San Francisco product lab building large-scale evaluation platforms for frontier AI models, best known for Design Arena — a crowdsou…
Rintin is an AI-powered B2B commerce platform in Mexico that lets small retailers and resellers source inventory directly from manufacturers and whole…
Polar is an AI-first, Chromium-based browser (macOS) that runs long, multi-step tasks on the open web for knowledge workers — clicking, typing and nav…
Fish Audio develops multilingual AI voice generation and voice cloning infrastructure for creators and developers, with text-to-speech APIs and audio …
Axis Robotics builds a distributed data engine for physical AI, letting a global network of contributors generate robot training data through browser-…
Scape is a Stockholm-based Y Combinator startup building an AI-native desktop email client for professionals. It prioritizes the inbox, pre-drafts rep…
Klaimee provides liability insurance and risk certification for autonomous AI agents, covering failures that traditional E&O and cyber policies explic…
Petra Labs is building the attribution and experimentation layer for AI search, helping enterprises measure and improve how often their brands appear …
SkyPilot is an AI compute platform that commercializes the popular open-source SkyPilot project developed at UC Berkeley's Sky Computing Lab. It acts …
Infinity is an AI infrastructure company building a universal inference software layer — a CUDA alternative — that makes any AI chip (GPUs, SRAM, mobi…
GreenVibe builds wireless, ultrasound-based sensors that are embedded in concrete before pouring to measure strength, temperature, humidity and densit…
MicroAGI is a Berlin-based data research lab accelerating embodied AI by recording real-world human task execution through camera-wearing workers, gen…
Runta builds the execution layer for AI agents: isolated, stateful microVM runtimes that let long-running agents run, be governed, and be recorded. Th…
Refer is a Bay Area AI recruiting platform (Public Benefit Corporation) founded in 2024 by Andre Hamra that flips traditional recruiting by making job…
Gradium is a Paris-based AI company building ultra-low latency voice foundation models that enable near-instant, expressive, and multilingual voice AI…
Tomo is a personal AI 'champion' that lives inside your text messages: you text a phone number and it learns your goals, remembers what matters to you…
Mirendil is a San Francisco frontier AI research lab building 'AI that builds AI' — training frontier models that are expert at AI R&D and wrapping th…
Ornn builds financial infrastructure for GPU compute, including pricing indices (the Ornn Compute Price Index), market data, and cash-settled futures …
Architect Labs builds AI systems that design and formally verify custom silicon, turning demanding workloads into purpose-built chips and full-stack h…
Aether AI is a frontier AI research company building causal world models — systems that reason through causal mechanisms rather than statistical corre…
Ralo is an AI-native online mortgage broker that automates the loan shopping and origination process to offer borrowers rates roughly half a point bel…
Taste Labs is building the data and infrastructure layer that gives AI models and agents "taste" — the ability to judge subjective quality rather than…
swsh is a consumer photo-sharing platform for live experiences, offering shared albums, AI-assisted photo discovery, and event community engagement to…
NewCore is a security-first, unified identity platform that secures and governs every human, machine, and AI-agent identity under one architecture, di…
Building vertically integrated, automated metal factories in Detroit that deliver raw materials faster, cheaper, and more reliably to US manufacturers…
F2 is an AI platform for private markets investors, purpose-built for private credit, private equity, and commercial banking. It turns unstructured de…
Minerva is a New York (Brooklyn) based AI platform for consumer marketing leaders. It unifies a brand's fragmented first-party data, enriches it with …
Titan is a banking-native AI platform purpose-built for regulated financial institutions. Its proprietary small language models are trained on OCC, CF…
Dalton Mills is an AI operating system for commercial and residential trades such as plumbing, HVAC, electrical, and roofing. The no-code platform let…
ZeroDrift is an AI compliance firewall that enforces regulatory and company-policy rules on AI-generated messages before delivery, blocking, rewriting…
Specbook AI provides an AI copilot for construction teams that analyzes specifications, drawings, and project documentation. The platform helps identi…
Drafted is a Y Combinator-backed AI startup building multimodal generative models for residential architecture and spatial design. Its platform turns …
Inherent is a London-based frontier AI lab building Faraday, an AI system for open-ended scientific discovery where humans and self-improving AI colla…
Kubera Health builds the contract-to-payment system of record for American healthcare, turning payor-provider agreements into structured rules that ru…
Semantic KV caching layer built for LLM inference, enabling AI applications to reduce inference costs and latency by reusing cached computation across…
Flexprice is an open-source monetization infrastructure platform built for AI-native and SaaS companies. It enables teams to operate usage-based, cred…
Polsia is an autonomous multi-agent AI platform that plans, codes, markets, and manages businesses end-to-end. It deploys specialized AI agents coveri…
NanoClaw is a security-focused, open-source personal AI agent that runs each agent in an isolated Docker/Linux container on Anthropic's Claude Agent S…
Graphon AI is a pre-model intelligence layer that transforms enterprise multimodal data (documents, video, audio, logs, databases) into persistent rel…
Flick is an AI-native filmmaking platform that gives professional creators cinematic control through an AI-native workflow built for storytelling, ite…
Ciridae is an AI transformation firm that builds AI-native operating systems for mid-market 'real economy' businesses such as restoration, logistics, …
Espa is a privacy-first AI executive assistant that handles scheduling, inbox management, and task follow-ups on behalf of users. Accessible via text,…
AI-powered commerce platform that lets independent sellers and creators launch community-driven marketplaces with live selling, auctions, and paid com…
Paris-based Geology AI company that uses foundation models and deep domain expertise to accelerate the discovery of critical mineral and metal deposit…
Nace AI builds MetaModel, an AI system that dynamically generates small, task-specific language models for enterprises using a Hypernet architecture t…
Agentic operating system for healthcare that automates administrative workflows including prescription refills, referral tracking, and lab notificatio…
Astrada is the data layer for autonomous finance, providing real-time card transaction data infrastructure that unifies financial data across fragment…
Autonomous Cyber is an AI-native platform for offensive cybersecurity operations, offering FUZZ-E to support the full cyber kill chain from vulnerabil…
Ineffable Intelligence is a London-based AI research lab founded in late 2025 by David Silver, former reinforcement learning lead at Google DeepMind a…
Blackstar is an AI hardware startup building a new computing device and operating system aimed at fundamentally improving how humans interact with AI.…
BuildForever is a software company crafting consumer products that feel personal, magical, and deeply human. Their first product, Extra, is an email p…
Parrot Finance is a social investing platform that lets users follow and replicate portfolios managed by top financial influencers, asset managers, an…
Sudo Robotics is building general-purpose robots powered by a manipulation-centric foundation model, with its flagship #sudo R1 system integrating sel…
AI research lab building self-learning expert agents that continuously adapt and develop domain expertise through experience rather than static traini…
Builds fully autonomous, cabless electric freight haulers (Class 8 trucks) that use vision-based AI to move freight across warehouses, ports, and rail…
Round Treasury is an AI-powered treasury management platform that unifies banking, payments, FX, and reconciliation for startups and growing companies…
Debbie is a consumer fintech mobile app that rewards users with cash and points for building savings and paying down debt rather than for spending. It…
Pomo (HelloPomo) is a Palo Alto-based AI marketing intelligence platform that applies AI-agent principles to decision-dense marketing work. Its agents…
Cloud-based AI agent platform that connects to every tool in a business stack, automates multi-step workflows, and runs continuously without human int…
Sycamore is a Palo Alto AI infrastructure startup building a trusted agent operating system that enables enterprises to deploy, govern, and orchestrat…
Helix Earth Technologies is a Houston-based NASA and Rice University spinout that manufactures bolt-on HVAC retrofit devices using proprietary liquid-…
General Legal is an AI-native law firm focused on growth-stage companies, providing fast, high-quality contract drafting, review, and negotiation for …
Applied Atomics is a US-based deep-tech startup that develops and operates full-stack nuclear power plants (100MW–1GW) for industrial customers, deliv…
Respan (formerly Keywords AI, YC W24) is an AI observability and LLM engineering platform that lets teams trace, evaluate, and improve AI agents. It c…
Rove is building the first universal airline mile, a loyalty program that lets users earn and redeem miles across dozens of international airlines and…
AMI Labs is a frontier AI research lab building world-model-based intelligence systems with planning, memory, and safety controls for real-world appli…
14.ai is a Y Combinator (W24) company building an AI-native customer-service agency that takes over a company's full support operation across email, p…
Astromech is an AI-and-biology startup recruiting across genomics, evolutionary modeling, synthetic data, and alignment research to decode and simulat…
Layercode provides voice AI infrastructure for developers, enabling production-ready, low-latency voice AI agents using TypeScript. The platform handl…
Deep-tech mining and energy startup developing proprietary laser-based drilling systems to unlock Europe's critical minerals and geothermal energy at …
Adora is an AI-powered product experience platform that automatically maps user journeys, captures screens and flows across devices and variants, and …
Flock AI (Flock Shopping) builds AI tools for visual commerce and shopping experiences, helping brands and retailers improve product discovery and con…
AI research company building adaptive models that learn continuously without expensive retraining, using less computing power than leading AI models, …
Expert Intelligence builds an AI decision layer for laboratory workflows in pharma, materials, food, and environmental testing, emphasizing governed a…
Fibr builds AI-powered marketing optimization software for personalization and conversion-focused experimentation across landing pages and web experie…
Phylo is an applied AI research laboratory developing Biomni Lab, an integrated workspace enabling scientists to plan, author, execute, and collaborat…
Pierre is an opinionated git platform that rebuilds code hosting, code review, and CI from the ground up for small engineering teams augmented by AI. …
Langbase is a serverless AI developer platform for building, deploying, and scaling AI agents. It processes 700TB+ of vector memory and billions of AI…
Billdr is building an AI-native operating system (vertical SaaS) for SMB general contractors, covering estimates, invoicing, project and team manageme…
poetiq is an AI research and engineering company building reasoning systems and self-improving intelligence infrastructure, founded by former Google D…
AI-native insurance brokerage focused on health insurance for small and midsize businesses, using software and automation to modernize plan shopping a…
Limy provides infrastructure platform for the agentic web, enabling brands to control visibility and revenue as AI agents retrieve information and exe…
Blockit AI builds an autonomous scheduling agent that books, reschedules, and coordinates meetings over email and Slack, integrating with Google and O…
Nexxa builds specialized AI agents that automate complex technical workflows in heavy industries using multi-agent architecture and computer use capab…
Bolna is a voice AI platform that lets businesses design, deploy, and manage AI phone agents for outbound and inbound calls across sales, collections,…
Crunched is an AI analyst embedded in Excel and PowerPoint for finance, consulting, and investment professionals, building, updating, and reviewing fi…
Merciv is an AI-native consumer intelligence platform for enterprise commerce, connecting internal systems, syndicated research, social signals, and t…
Entelligence AI is an AI-powered code review and engineering team management platform that functions as an AI Tech Lead. It automates PR reviews, surf…
Sauron is the world's first perceptual home security platform that continuously scans the perimeter of your home and reliably identifies and deters al…
Glue is an open-source interface design canvas for AI agents, giving coding agents an infinite canvas to create new interfaces, iterate on existing on…
Byteport builds global upload acceleration infrastructure for 1GB-100TB files using DART (Dynamic Accelerated Record Transfer), a proprietary UDP-base…
Modo is a San Francisco-based AI adoption and ROI measurement platform that helps employees discover and use the right AI tools within their existing …
Prox builds AI technical support agents for complex physical products such as power tools, HVAC systems, industrial heaters, EV chargers, and CNC mach…