Y Combinator Infrastructure Startups

317 Y Combinator-backed Infrastructure companies across 46 batches — with batch, status, and location for every startup.

Total
317
Active
220
Acquired
54
Public
0
Shut down
43

Y Combinator has backed 317 Infrastructure companies across 46 batches. Of these, 220 are still active, 54 have been acquired, 0 have gone public, and 43 have shut down. Below is every YC-backed Infrastructure startup grouped by batch, with links to each company profile.

YC Spring 2026 — 20 Infrastructure startups

  • Miso Labs — Emotive foundation voice models
  • Sazabi — The AI-native observability platform for fast-moving engineering teams
  • Interfaze — AI model built for high accuracy deterministic tasks
  • StableBrowse — Help frontier labs build better models.
  • Inth — Enterprise privacy governance for companies that ship fast
  • smol machines — Ship software faster with portable, self contained virtual machines.
  • primitive — communication for agents
  • Ardent — Database sandboxes for Agents
  • ProjectX — Agent native workspace for heavy parallel workflows on the web
  • Indexable — sandbox infrastructure for AI agents
  • KugelAudio — Kugel is an on-prem Voice AI model supporting 30+ languages
  • Limrun — Extend cloud sandboxes with iOS, Android and more
  • Minicor — Scalable windows desktop automations
  • Zibra Labs — Distributed runtime for AI workloads at scale
  • Wato — The control point for AI agents at work.
  • Memory Store — Company Brain.
  • Expanse — Unlock wasted GPU capacity.
  • AgentPhone — Phone Numbers for AI Agents
  • Hub — Real-world training data for frontier AI labs and robotics.
  • Drip — Never miss a lead

YC Winter 2026 — 24 Infrastructure startups

  • Cascade — Distilling Proprietary Intelligence
  • IncidentFox — AI SRE agent that triages, coordinates, and fixes production incidents
  • The Token Company — Compression middleware that improves LLM outputs
  • Wayco — AI operator for medlegal cases
  • Luel — Turning everyday words and actions into usable training data.
  • Captain — Give AI agents accurate knowledge search that scales
  • Piris Labs — The Networking Layer of AI
  • Fern — RL environments for robotics companies
  • Orthogonal — Agentic Payments for APIs
  • Compresr — LLM context compression for better accuracy
  • Maven — Payments Infrastructure for Voice Agents
  • Ossus — Intelligence for cultural institutions
  • Autumn AI — Stalk your prospects at scale.
  • Mantis — Digital Twins of humans
  • Didit — Infrastructure for identity and fraud.
  • Tensol — AI Employees for Startups, Built on OpenClaw
  • RunAnywhere — The default way of running on-device AI at Scale
  • Salus — Guardrails to validate your agent's actions before they execute
  • Chamber — The AIOps Agent for ML Teams
  • Oximy — Take command of the AI your company already runs on.
  • Shofo — The World's Largest Video Library
  • Klaus AI — Fast and Safe OpenClaw on the cloud
  • Moda — Continual learning for AI agents
  • Cumulus Labs — The Fastest Multimodal Inference OS

YC Summer 2026 — 22 Infrastructure startups

  • Archal — The improvement loop for AI agents
  • Codag — Log compression for agents.
  • Parasma — Training human brain cells for AI compute
  • Context.dev — We give AI agents realtime web context.
  • Dialogus — Infra for enterprise voice agents.
  • Markov — Data for computer-use ai
  • Mireye — Infrastructure for Physical World AI Agents
  • Experiential Labs — Continual Learning for Agents
  • Edviro — Energy world models that fix energy waste before it becomes expensive.
  • Induction Labs — Building intellectually curious AI
  • Rindler — The translation layer between AI agents and the web
  • GitCafe — GitCafe is a modern replacement for GitHub.
  • Understudy Labs — Effortlessly move to open weight models
  • Speko — OpenRouter for voice AI
  • Touchmark — Solving AI pricing
  • machine0 — Cloud computers for AI agents
  • Executor — The open source integration management layer for AI.
  • Inkbox — Give your AI agents email, phone, iMessage and an internet address
  • Decawork — The Agent Control Plane for IT teams
  • Amulet — High performance file system for agents
  • hiloop — Infrastructure for recursive self-improvement
  • OpenVector — AI that turns any camera to an autonomous worker with real-time vision

YC Fall 2026 — 1 Infrastructure startups

  • RightNow — Enabling Model-Hardware Co-Design at Scale

YC Summer 2025 — 13 Infrastructure startups

  • AgentMail — Email Inboxes for AI Agents
  • Dedalus Labs — Compute substrate for AI agents
  • truthsystems — Automatically blocking risky behavior with real-time governance agents
  • LLM Stats — Independent AI evaluations lab
  • Imprezia — The World's First AI Ad Network.
  • Pangolin — Identity-aware VPN and proxy for remote access to anything, anywhere.
  • Manufact — Cloud infrastructure for MCP servers and Claude / ChatGPT apps.
  • Relling — deploying the first billion robots for manufacturing
  • Metis — Infrastructure to build reliable agents
  • Modelence — Build production-ready apps with AI
  • Luminal — Making AI run fast on any hardware.
  • Nuntius — Making Models Follow Rules.
  • KERNEL — Crazy fast, open source infra for AI agents to use the Internet

YC Winter 2025 — 9 Infrastructure startups

  • ZeroEntropy — Artificial Specialized Intelligence
  • Exla — Building agents that reads logs and fixes issues on your behalf.
  • Outlit — Customer Context for Agents
  • AfterQuery — Applied research lab curating data solutions for foundation model…
  • Butter — Embedded Sandboxes for Agents
  • TensorPool — Vercel For GPUs
  • Flowtel — The AI Voice agents for hotels
  • assistant-ui — Open Source React.js Library for AI Chat
  • Mundo AI — High Quality Multilingual Training Data for AI Models

YC Fall 2025 — 7 Infrastructure startups

  • Brickanta — Agentic AI for Society Builders
  • SF Tensor — Infrastructure for AI labs to focus on research.
  • Dome — A unified API for prediction markets, like Kalshi and Polymarket
  • Amika — Infra to build your own software factory
  • Hyperspell — Your Company Brain
  • Sciloop — Expert STEM reasoning data for frontier AI labs.
  • s2.dev — API for unlimited, durable, real-time streams

YC Spring 2025 — 9 Infrastructure startups

  • PgDog — Scaling engine for PostgreSQL
  • Hanji — Turn your hardest documents into reliable data
  • Sixtyfour — Intelligence Infrastructure on People and Entities
  • Kairos — Specialized AI for Critical Industries
  • Airweave — The open-source context retrieval layer for agents
  • Aravolta — Software to monitor, control, and optimize data centers.
  • RunRL — Reinforcement learning as a service
  • ParaQuery — Managed GPU-accelerated Spark + SQL at 2x speed and half the cost
  • Naïve — Unified Agent Infrastructure

YC Summer 2024 — 11 Infrastructure startups

  • Glasskube — Ship self-hosted software with Distr
  • Oway — Turning America’s supply chain inefficiency into infrastructure.
  • Mem0 — The Memory layer for AI Agents
  • Synnax — Unified Hardware Control and Data Processing Software
  • Thunder Compute — VMware for GPUs
  • bluedoor — The world's data, ready for AI
  • Pipeshift — Ultra-low latency inference cloud for real-time workloads
  • Freestyle — We run and deploy code your AI wrote
  • Miru — Config Management for Robotics
  • Pulse — Production-grade unstructured document extraction
  • Opslane — Verify AI-generated code before you ship it

YC Winter 2024 — 13 Infrastructure startups

  • Engines — Setup any repo with one command
  • Respan — Self-driving observability, evals, and gateway for AI agents
  • Trieve — All-in-one API for search, RAG, & recommendations
  • ROE — AI for risk and compliance
  • Ubicloud — Open source alternative to AWS
  • Guide Labs — Frontier models and agents you can learn from, audit, and steer.
  • Breez Labs — Helping Companies Deploy Email Agents in High Trust Domains
  • PointOne — AI Time Platform for Law Firms
  • Celest — The Vercel of Flutter
  • Vibrant Labs — Autonomously scaling environments
  • Hatchet — The orchestration platform for teams who ship.
  • Downlink — Make your LLMs 3x faster.
  • Blacksmith — The fastest way to run your GitHub Actions

YC Fall 2024 — 6 Infrastructure startups

  • Darkgrade — Let your camera understand the world
  • Revyl — The mobile source of truth
  • CTGT — The deterministic layer for frontier intelligence
  • Ryvn — Easy and secure customer cloud deployments
  • Synth — Prompt and Context Optimization for Coding Agents
  • Archil — The high-performance file system that connects AI to data

YC Winter 2023 — 16 Infrastructure startups

  • Reflex — The operating system for building mission-critical enterprise apps.
  • Versori — Agentic integrations & automations for enterprise
  • Indexical — AI-powered data extraction engine
  • KV Cash — KV Cash, a blockchain where contracts can finally think
  • Middleware — AI-based full stack observability platform
  • ZeroDev — Account abstraction wallets as a service
  • OpenMeter — Usage Metering, AI & API Monetization
  • Cakework — API that adds cloud hosting to any developer platform
  • infra.new — AI Agent for Cloud Infrastructure
  • Portalform — Build and host internal tools
  • Arroyo — Cloud-native stream processing
  • Odigos Technologies Inc. — Enterprise-Grade OpenTelemetry
  • Magicflow 𐂂 — The Gen AI evaluation and curation platform
  • Rivet — Rivet Actors are the primitive for stateful workloads
  • SuperAPI — Programmable API gateway that makes APIs cacheable
  • Texel.ai — Run AI pipelines 10x faster

YC Summer 2023 — 11 Infrastructure startups

  • Morph — Fast Models Optimized for Coding Agents
  • Artie — Software that streams data from databases to warehouses in real-time
  • Hegel AI — Open source tools for developing generative AI applications
  • Skyvern — Open Source AI Agent to automate browser workflows via an API
  • Mocha — Build and publish web apps in minutes. No coding required.
  • Bland AI — The enterprise platform for AI phone calls
  • Cedana — Fast, reliable, reproducible AI with GPU live migration
  • Terracotta AI — AI-powered Infrastructure as Code PR reviews
  • Epsilla — All-in-one platform to create AI agents with your private knowledge
  • Apoxy — Simpler and cheaper multi-cloud and cross-platform deployments.
  • Glide — Crypto Deposits, Wallet Funding, and Pay-with-crypto Infra

YC Winter 2022 — 18 Infrastructure startups

  • FlowDeploy — Bioinformatics pipelines in the cloud
  • Flightcontrol — Deploy apps with utmost reliability, flexibility, and performance
  • Sieve — Video datasets for frontier AI
  • LanceDB — Open-source, serverless vectordb for production-scale generative AI
  • IOMETE — Self-hosted data lakehouse platform
  • RDash — AI Powered Construction Management Software
  • Beam — AI-Native Cloud Platform
  • Wingback — Wingback provides tools and APIs for SaaS pricing and packaging.
  • Dojah Inc — Prevent Fraud and Onboard Users Faster
  • Cerebrium — Serverless Infrastructure Platform for AI
  • Hydra — Serverless Analytics on Postgres
  • Nullstone — An easier way to deploy and manage cloud apps
  • Netmaker — Automated WireGuard networks for distributed systems and Kubernetes
  • Decent — Cross-chain routing + trading APIs. One-click transactions with any…
  • Shaped — The real-time retrieval engine for search, feeds, and agents.
  • SimpleHash — Multi-chain token data platform
  • Eventual — Building the AI data engine for any modality and scale
  • Prembly (formerly Identitypass) — Identity Verification API for Emerging Markets

YC Summer 2022 — 14 Infrastructure startups

  • Denormalized — serverless platform for real-time data
  • Airtrain AI — No-code data curation for LLM fine-tuning and evaluation.
  • Slauth.io — The IAM Policy Copilot
  • Windmill — Open-source platform to turn scripts into internal apps & workflows
  • Provision — Ironclad for construction
  • Pluralith — Automated infrastructure compliance and documentation
  • Neosync — Neosync is an open-source anonymization and synthetic data platform.
  • Coris — AI risk and ops platform for Payment Processors, Banks, SaaS…
  • Plutto — Supply-chain risk management and compliance platform for Latin…
  • Grai — Open source version control for metadata
  • Blockscope — Palantir for Web3
  • BricksAI — Streamlining LLM application management for enterprises
  • AccessOwl — Managing your Employees' Access to SaaS
  • Sunpia — Deploy serverless without rewriting code

YC Winter 2021 — 13 Infrastructure startups

  • Encord — The data layer for physical AI
  • Ollama — Get up and running with large language models.
  • Galaxy
  • Svix — Enterprise ready webhooks service, open-source and in the cloud
  • Arpio — Recover from any outage in 10 minutes or less.
  • Quicknode — Tools & infra to build and scale high-quality blockchain applications.
  • Dyte — Real-time audio & video SDKs, ready to launch 🚀
  • Mystic — Low latency API to run and deploy ML models
  • SigNoz — Open source alternative to DataDog
  • SlashAuth — The solution for fine-grained access control in web3
  • OpenCode — The open source AI coding agent
  • Outpaint.com — AI that expands any video to fit any screen.
  • Nimbus — Nimbus reduces Datadog costs by more than 60% without Manual Effort

YC Summer 2021 — 8 Infrastructure startups

  • Artillery — The complete production quality platform. AI-powered E2E testing,…
  • Pipekit — Pipekit scales data & CI pipelines for enterprises
  • Rootly — AI-native on-call and incident response carefully crafted to help…
  • Buró de Ingresos — The Work Number for LatAm
  • Satsuma — Reliable blockchain indexing & querying for web3 engineering teams.
  • Pylon — Infrastructure management software for water & electricity companies
  • Scratch Data — Analytics for builders. Record and query billions of datapoints with…
  • Warrant — Authorization and access control as a service.

YC Winter 2020 — 10 Infrastructure startups

  • Scout — Dead simple CI/CD for ML teams
  • Cortex — Cortex is the Internal Developer Portal eliminating “developer tax”…
  • Replicate — Run machine learning models in the cloud
  • MindsDB — Connect, Unify, Respond to any data, anywhere with human-level…
  • Ardis AI — Transform your text data into a searchable knowledge graph
  • Aden — Open source agent generation framework
  • Fly.io — Run full stack apps close to your users.
  • Signadot — Scalable validation infrastructure for AI agents
  • BuildBuddy — BuildBuddy provides enterprise features for Bazel — the open source…
  • Termii — Termii is an AI-native reliability infrastructure company.

YC Summer 2020 — 14 Infrastructure startups

  • KeyDB — The only database you'll ever need
  • Metamanagement — We help SaaS companies deploy into their customer's environment.
  • Speedscale — Accelerate development by simulating production conditions with real…
  • Supabase — Build in a weekend. Scale to millions.
  • Clew — Unified file system for the cloud.
  • Reploy — Instant, shareable staging environments
  • QuestDB — High-performance time series database
  • Shuttle — Build Backends. Fast.
  • Atomized — Enabling teams to deploy without needing a cloud expert
  • Streamdal — Data Quality & Playback Platform
  • Aquarium Learning — We help ML teams improve their models by improving their datasets
  • Nestybox — Enables Linux containers to act as super fast & efficient VMs
  • Porter — Easiest way to deploy on AWS/GCP/Azure
  • Mozart Data — The easiest way to set up a modern data stack

YC Summer 2019 — 10 Infrastructure startups

  • Narrator — The only platform that can prep data to answer EVERY question you…
  • Flowbot — A natural language-driven programming assistant.
  • OpenReplay — Open-source, self-hosted, session replay tool for developers.
  • Freshpaint — Customer data collection, safeguarding, & activation for healthcare
  • Bun — Bun is an incredibly fast all-in-one JavaScript toolkit
  • Prompt — Helping busy professionals understand and maintain their relationships
  • Preclusio — We help companies comply with privacy laws like GDPR. Many of these…
  • Data Mechanics — Spark-on-Kubernetes Data Engineering Platform
  • Wasmer — The Operating System for Edge Computing
  • Flow — Improve your browsing experience by staying organized and intentful

YC Winter 2019 — 3 Infrastructure startups

  • Visly — Build React components visually
  • Okteto — Cloud Development Environments with one click
  • Fuzzbuzz — Fuzzing as a Service

YC Summer 2018 — 2 Infrastructure startups

  • Activeloop — Database for AI
  • Inscribe — AI Document Fraud Detection for Banks, Credit Unions & Lenders

YC Winter 2018 — 2 Infrastructure startups

  • Tipe — Open-source, customizable, headless CMS
  • Jido Maps — Turn your data into a deployed computer vision model

YC Winter 2017 — 4 Infrastructure startups

  • Bitrise — Hosted Continuous Integration and Delivery for mobile apps
  • Armory — Continuous Deployment at any scale, for all developers.
  • Terark — Fastest Storage Engine with the Best Compression, we enables direct…
  • Peer5 — P2P delivery network that enables high quality video streaming

YC Summer 2017 — 1 Infrastructure startups

  • AssemblyAI — The best way to build Voice AI apps

YC Winter 2016 — 4 Infrastructure startups

  • Mux — Video infrastructure for developers
  • NetBeez — Network monitoring from the end-user perspective
  • Redspread — Version control for software environments
  • Protonet — Protonet provides the easiest way for a small business to run its own…

YC Summer 2016 — 1 Infrastructure startups

  • Expo — Expo brings together the best of web and native app development

YC Winter 2015 — 4 Infrastructure startups

  • Mezmo — Observability platform to control all of your log data
  • Pachyderm — Data Versioning, Data Pipelines, and Data Lineage
  • Nextop — Nextop optimizes the path between your app and backend. Client…
  • Raven Tech — Our vision is to build the next generation of iOS or Android, to…

YC Summer 2015 — 3 Infrastructure startups

  • Teleport — The Infrastructure Identity Company
  • Convox — Open-source tools for deploying, managing, and monitoring cloud…
  • Bitmovin — Powers OTT online video providers with video developer tools.

YC Summer 2014 — 4 Infrastructure startups

  • Protocol Labs — Protocol Labs makes internet protocols: IPFS, Filecoin, and more.
  • Aptible — The No Infrastructure Platform as a Service
  • Blockspring — Automate data collection for spreadsheets and productivity tools.
  • Neptune.io — A self-healing platform to enrich and fix server alerts automatically

YC Winter 2014 — 2 Infrastructure startups

  • PipelineDB — Open-source time-series data analytics extension for PostgreSQL
  • Vidpresso — Help media companies make quality live video. [Acquired by Facebook]

YC Winter 2013 — 5 Infrastructure startups

  • Logiblock — Logiblock engineers electronics and development tools to dramatically…
  • Fivetran — The leader in automated data movement
  • Etleap — Etleap is an ETL solution for creating perfect data pipelines.
  • InfluxData — The platform for building and operating time series applications.
  • Bitnami — The App Store for Server Software

YC Summer 2013 — 2 Infrastructure startups

  • CoreOS — Open source tools of modern distributed systems.
  • StackMachine — Instant sandboxed server environments

YC Winter 2012 — 4 Infrastructure startups

  • Amiato — The BI bridge for unstructured data. We automatically bridge the gap…
  • Brace — Backlift allows front-end only developers to build entire websites…
  • Minefold — Simple multiplayer game servers.
  • Documents.Me — Client-side encryption for your devices and the cloud.

YC Summer 2012 — 3 Infrastructure startups

  • Parallel Universe — Helping developers scale their applications with ease.
  • Pixate — Mobile application prototyping. Now part of Google.
  • GoScale — Dynamical Scaling Virtual Machines as a Service

YC Summer 2011 — 9 Infrastructure startups

  • Firebase — Build and grow iOS, Android, and Web apps.
  • Cryptoseal — Server key management, VPN as a Service, Privacy VPN. Sold to…
  • Citus Data — Real-time. Big data. PostgreSQL
  • Realm — Better data structures = no DB.
  • Apollo — Apollo helps engineering teams accelerate delivery
  • Proxino — Javascript proxy.
  • Imgix — The platform for your visual media.
  • PhoneSys — The Phone System for Sales Teams.
  • Compose — We make it easy to run databases. PostgreSQL, Redis, MongoDB,…

YC Winter 2011 — 3 Infrastructure startups

  • AppHarbor — .NET Cloud Platform as a Service
  • SingleStore — The cloud-native, operational database built for speed and scale.
  • Apportable — iOS porting

YC Summer 2010 — 2 Infrastructure startups

  • AeroFS — Secure Enterprise Collaboration.
  • Docker — Software development platform.

YC Winter 2010 — 1 Infrastructure startups

  • Zencoder — Video Encoding API, Open source video player (video.js)

YC Summer 2009 — 1 Infrastructure startups

  • RethinkDB — The open source database for the realtime web.

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