Sector portfolio · Accelerator · United States

Y Combinator's Cloud portfolio

Y Combinator has backed 40 Cloud startups in rounds we track, $1.1B between them, shown by the stage each has reached. The best-funded is Blacksmith.

40startups backed
5stages
$1.1Braised between them
Pre-seed and seedbiggest stage

Y Combinator's whole portfolioY Combinator's profile

Segment by segment

Pre-seed and seed

20 startups · $254M raised

  1. DittoThe only mobile database with built-in edge device connectivity and resiliencyUnited States$104M
  2. UbicloudUbicloud is an open source cloud that can run anywhere where users can use our managed service to reduce your cloud spend by 310x.United States$66M
  3. ArmoryArmory is an enterprise software company commercializing the open-source continuous delivery platform, Spinnaker.United States$40M
  4. MassdriverMassdriver is an internal development platform and cloud operations platform that simplifies the management of Infrastructure as Code (IaC).United States$8.0M
  5. FormalFormal is a SaaS technology startup that builds operating system for data of the modern company.United States$6.8M
  6. MMiddlewareMiddleware offers development and solutions in the information technology sector.United States$6.5M
  7. SigNozSigNoz is an open-source observability platform designed to provide a cost-effective alternative to traditional monitoring solutioUnited States$5.4M
  8. LilacLilac offers an end-to-end data and analytics platform for payersUnited States$4.5M

Series A

9 startups · $185M raised

  1. CoreOSCoreOS builds industry-leading infrastructure software to securely run application containers anywhere.United States$48M
  2. InfracostInfracost is a cloud cost management platform founded in 2020 by Hassan Khajeh-Hosseini, Ali Khajeh-Hosseini, and Alistair Scott.United States$34M
  3. MomentoMomento is a premier wedding photography and videography company that services Las vegas & Reno NevadaUnited States$25M
  4. Summit Wealth SystemsSummit Wealth Systems is a cloud software company that enables wealth managers and their clients with abundance.United States$20M
  5. QuindarQuindar is a private aerospace and defense software company founded in 2022, headquartered in Lafayette, Colorado.United States$18M
  6. IMTCIMTC, formerly known as CBXmarket, is a private fintech company based in New York City, specializing in cloud-based technology solUnited States$12M
  7. KKaleidoscopeKaleidoscope specializes in offering a wide range of gymnastics, cheer, dance, holiday camps, and parties.United States$11M
  8. DepotDepot is a developer-first build platform founded in 2022, designed to enhance software development workflows by addressing CI (CoUnited States$10M

Series B

5 startups · $362M raised

  1. HiveHive provides cloud-based AI solutions for understanding, searching, and generating contentUnited States$127M
  2. ConvexConvex is a San Francisco-based company that offers an open-source reactive backend platform designed for web developers.United States$120M
  3. OXIOoxio is a Canadian telecommunications company that focuses on providing reliable and transparent home internet services.Mexico$72M
  4. dotCloudDotCloud is a second generation PaaS platform that is the commercial entity behind Docker an open source app portability project.United States$29M
  5. Petabyte TechnologyPetabyte Technology provides a veterinary management solution that emphasizes practice productivity and exceptional patient care.United States$15M

Series C and later

3 startups · $273M raised

  1. BlacksmithBlacksmith is a managed Continuous Integration (CI) cloud service that serves as a drop-in replacement for GitHub Actions runners.United States$131M
  2. Fly.ioFly.io is a developer-focused global application platform that allows teams to run web, AI, and application workloads close to endUnited States$95M
  3. ArcheraArchera provides a cloud cost optimization solution for companies to save time and money on their cloud costs, without any risk.United States$47M

Stage not reported

3 startups · $12M raised

  1. TrueVaultTrueVault is a San Francisco-based company founded in 2013 that specializes in data privacy compliance software and a HIPAA-compliUnited States$6.2M
  2. ParagonParagon is a now part of CGI (cgi.com), a global IT and business consulting services firm.United States$5.5M
  3. RyvnRyvn is a software deployment automation platform based in San Francisco, founded in 2024 by Albert Lam and Shardool Patel.United States$500K

How this map is made. Every startup here works in Cloud and has raised money in a round we track that names Y Combinator as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026.

More portfolio maps

All portfolios

Raising from investors like Y Combinator?

Find the investors who back startups like yours, with their cheques, rounds and partners, in the app with filters, lists and exports.