What they do:
The Lovable & Replit killers
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HQ: San Francisco, CA, United States
Top Developer Tools Startups
This list has 794 startups and was last updated on Oct 15, 2026. 187 of them are hiring right now. Biggest hubs: San Francisco (441), New York (75), and London (39). Largest teams: GitLab, PagerDuty, and Algolia. Latest round: Coding Giants raised €6M (Oct 14, 2026).
Survival statistics →886 open roles →
794 startupsPage 12 of 23
What they do:
Stripe for telephony
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HQ: Lehi, UT, United States
What they do:
Struct keeps prod running
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HQ: San Francisco, CA, United States
What they do:
AI powered debugging notebooks for incident response
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HQ: San Francisco, CA, United States
What they do:
Open Source React.js Library for AI Chat
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HQ: San Francisco, CA, United States
What they do:
Custom models trained on your data
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HQ: San Francisco, CA, United States
What they do:
Understand your users beyond the numbers
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HQ: San Francisco, CA, United States
What they do:
Self-Driving CI: fast AI-native GitHub Actions runners
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HQ: San Francisco, CA, United States
What they do:
AI content manager that grows your company's online presence
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HQ: San Francisco, CA, United States
What they do:
The AI notepad that knows and works for you
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HQ: Seoul, South Korea
What they do:
The makers of Klex Bots, your own team of digital coworkers.
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What they do:
Production infrastructure on autopilot
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HQ: San Francisco, CA, United States
What they do:
Lovable for mobile apps
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HQ: Thessaloniki, Greece
What they do:
Team chat to command all your company's coding agents
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HQ: San Francisco, CA, United States
What they do:
AI production engineer for regulated industries
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HQ: San Francisco, CA, United States
What they do:
Monitor and fix product privacy issues before they block growth
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HQ: London, United Kingdom
What they do:
We get your product picked by coding agents.
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What they do:
An open-source operating system for reliable long-running agents
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HQ: Boston, MA, United States
What they do:
Reliable and safe data engineering and data science agents
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HQ: San Francisco, CA, United States
What they do:
Reliable infrastructure to build, deploy and manage real-world robots.
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HQ: Denver, CO, United States
What they do:
The identity and communication layer for AI agents
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HQ: San Francisco, CA, United States
What they do:
We find flaws in RL environments and evals and help you fix them.
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HQ: San Francisco, CA, United States
What they do:
Autoresearch as a service: we solve your hardest measurable problems
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HQ: San Francisco, CA, United States
What they do:
Evals for robots
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HQ: San Francisco, CA, United States
What they do:
The best cloud VMs for billions of agents
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What they do:
Swarms of agents acting like users to find bugs before release
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HQ: London, United Kingdom
What they do:
The managed cloud for AI agents.
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HQ: San Francisco, CA, United States
What they do:
Simple third-party app patching and deployment for Windows.
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HQ: San Francisco, CA, United States
What they do:
Easy button to use data for your daily operations
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HQ: San Francisco, CA, United States
What they do:
Improving Developer Experience with Streamlined Code Reviews
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What they do:
Configuration language for building enterprise web apps 10x faster
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HQ: Zagreb, Croatia
What they do:
Open-source monitoring for machine learning models
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HQ: London, United Kingdom
What they do:
AI Search for the Next Generation
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HQ: San Francisco, CA, United States
What they do:
The best AI chat you've ever used
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HQ: San Francisco, CA, United States
What they do:
An easier way to deploy and manage cloud apps
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HQ: Atlanta, GA, United States
What they do:
Open-source API & UI test automation
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HQ: Wilmington, DE, United States