What they do:
Open source background agents
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HQ: Singapore
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 13 of 23
What they do:
Automated infrastructure compliance and documentation
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HQ: Vienna, Austria
What they do:
Cloud Native SIEM (alternative to Splunk/Elastic)
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HQ: Seattle, WA, United States
What they do:
AI coding copilot engineered for performance
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HQ: San Francisco, CA, United States
What they do:
Deploy Machine Learning Models with One Command
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HQ: San Francisco, CA, United States
What they do:
Turn your ideas into full-stack apps
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What they do:
High-performance computing cloud
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What they do:
Your self-generating, self-maintaining code knowledge base.
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HQ: San Francisco, CA, United States
What they do:
Programmable API gateway that makes APIs cacheable
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What they do:
AI SRE For Teams on Kubernetes
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HQ: London, United Kingdom
What they do:
Test, evaluate & observe your LLM applications
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HQ: New York, NY, United States
What they do:
Agents that handle security work
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HQ: New York, NY, United States
What they do:
AI for humans
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HQ: San Francisco, CA, United States
What they do:
Observability and evaluation platform for LLM apps.
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HQ: San Francisco, CA, United States
What they do:
orchestrate your coding agents with sudocode
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HQ: San Francisco, CA, United States
What they do:
The open source Postman alternative.
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HQ: San Francisco, CA, United States
What they do:
Cursor for AI Agents
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What they do:
Build chat-with-data agents for customer-facing applications
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HQ: Limerick, Ireland
What they do:
the AI coding app for thinking.
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HQ: San Francisco, CA, United States
What they do:
AI tooling
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What they do:
AI system design tools for dev teams
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HQ: New York, NY, United States
What they do:
Automate bug resolution
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HQ: New York, NY, United States
What they do:
AI Agent for DevOps Workflow Automation
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HQ: New York, NY, United States
What they do:
No Code Data Analysis for Life Science Research
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HQ: London, United Kingdom
What they do:
Security for AI-native developers
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HQ: San Francisco, CA, United States
What they do:
AI agents for insurance claims
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HQ: San Francisco, CA, United States
What they do:
AI media creation platform for creators and developers
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HQ: San Francisco, CA, United States
What they do:
Build interactive applications that run anywhere
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HQ: New York, NY, United States
What they do:
Custom video detection models in less than 5 minutes
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HQ: New York, NY, United States
What they do:
Platform to build, use, and monetize fully autonomous agents
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HQ: Remote
What they do:
ideate.xyz is an AI-powered 3D art suite on the web
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HQ: London, United Kingdom
What they do:
Open source AI copilot that knows your company's code and its context
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HQ: San Francisco, CA, United States
What they do:
One living model of your software architecture
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HQ: San Francisco, CA, United States
What they do:
Making everyone a software engineer
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HQ: San Francisco, CA, United States
What they do:
Datadog for robots
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HQ: San Francisco, CA, United States
What they do:
API & SDK for RCS (the next-generation of texting)
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HQ: San Francisco, CA, United States