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Y Combinator's Developer Tools Portfolio

Browse 6 Developer Tools companies funded by Y Combinator. See funding amounts, founder contacts, and investment details.

Developer Tools Companies
6
Total Funding in Developer Tools
$261.0M

Developer Tools Portfolio Companies (6)

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Agentic AIArtificial Intelligence (AI)Cloud ComputingDeveloper ToolsEnterprise SoftwareIdentity ManagementInformation TechnologySoftware

Replit provides a cloud-based development platform that enables users to write, run, and deploy applications in browsers.

Foster City, United States
May 2026
$250.0M
Corporate Round

Founder Contacts

19,000+ verified contacts

Cloud ComputingDeveloper ToolsSoftware

The fastest way to run your GitHub Actions. Trusted by Veed, Clerk, Ashby and 600+ others.

San Francisco, United States
May 2026
$10.0M
Venture - Series Unknown

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)Developer ToolsOpen SourceSoftware

Mastra is a Typescript framework to build AI agents

San Francisco, United States
April 2026
Series A

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)Cloud ComputingDeveloper Tools

Kura serves as a DevOps copilot, aiding software teams in the management of their cloud infrastructure.

San Francisco, United States
April 2026
$500K
Seed

Founder Contacts

19,000+ verified contacts

Artificial Intelligence (AI)B2BCustomer ServiceDeveloper ToolsSaaSSoftware

Lua provides AI-powered virtual agents for sales, support, and bookings across channels like WhatsApp, Messenger, and email.

London, United Kingdom
April 2026
$500K
Seed

Founder Contacts

19,000+ verified contacts

AppsDeveloper ToolsInformation ServicesInformation TechnologySoftware

Expo is a full-stack React Native framework that accelerates the app development lifecycle with robust cloud services.

Palo Alto, United States
April 2026
Series B

Founder Contacts

19,000+ verified contacts

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