What they do:
Email for developers
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HQ: Remote
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 3 of 23
SigNoz
Hiring
What they do:
Open source alternative to DataDog
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HQ: San Francisco, CA, United States
What they do:
Connect, Unify, Respond to any data, anywhere with human-level…
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HQ: San Francisco, CA, United States
What they do:
no-code end-to-end testing that integrates with any CI/CD pipeline
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HQ: San Francisco, CA, United States
What they do:
Location intelligence platform
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HQ: Kraków, Poland
What they do:
Expo brings together the best of web and native app development
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HQ: San Francisco, CA, United States
What they do:
Mobot is a QA-as-a-service platform using actual mechanical robots
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HQ: New York, NY, United States
Coast
Hiring
What they do:
Demo Platform for API-First Companies
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HQ: New York, NY, United States
Sieve
Hiring
What they do:
The multimodal data lab
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HQ: San Francisco, CA, United States
Formance
Hiring
What they do:
Open Source Infrastructure for the Financial Internet
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authzed
Hiring
What they do:
Authorization Infrastructure securing AI at OpenAI, Zoom, & more
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HQ: New York, NY, United States
Okteto
Hiring
What they do:
Cloud Development Environments with one click
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HQ: San Francisco, CA, United States
What they do:
Termius is an SSH client with team collaboration features
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HQ: Auckland, New Zealand
Recall.ai
Hiring
What they do:
The API to get recordings, transcripts, and metadata from meetings
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HQ: San Francisco, CA, United States
What they do:
AI-powered content creation infrastructure for apps
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HQ: San Francisco, CA, United States
What they do:
Open-source, serverless vectordb for production-scale generative AI
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HQ: San Francisco, CA, United States
What they do:
Observability and Governance for AI-Generated Python scripts.
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HQ: Campinas, Brazil
What they do:
AI code review agent with complete context of your codebase
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HQ: San Francisco, CA, United States
What they do:
The platform for your visual media.
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HQ: San Francisco, CA, United States
Metriport
Hiring
What they do:
Healthcare data infrastructure for next generation care delivery.
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HQ: San Francisco, CA, United States
Escape
Hiring
What they do:
Offensive security for the teams that are 100x outnumbered
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Lago
Hiring
What they do:
The AI Native Billing Platform
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HQ: San Francisco, CA, United States
What they do:
Plaid for Brazil: we allow developers to access users' financial data
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Alpha Vantage
Hiring
What they do:
Developer-friendly and enterprise-grade APIs for financial market…
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HQ: Boston, MA, United States
Seam
Hiring
What they do:
API for IoT Devices
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HQ: San Francisco, CA, United States
Infracost
Hiring
What they do:
Shift FinOps Left: Proactively Find & Fix Cloud Cost Issues
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HQ: Remote
testRigor
Hiring
What they do:
Executable specifications in English for test automation
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HQ: San Francisco, CA, United States
What they do:
Prevent Fraud and Onboard Users Faster
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What they do:
The Javascript framework for building AI agents, from the Gatsby devs
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HQ: San Francisco, CA, United States
Rutter
Hiring
What they do:
The Unified API for Business Financial Data
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HQ: New York, NY, United States
SnapMagic
Hiring
What they do:
AI-assisted electronics design
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HQ: San Francisco, CA, United States
What they do:
Platform that allows anyone to create and monetize video games.
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HQ: San Francisco, CA, United States
Lightdash
Hiring
What they do:
The open source Looker alternative
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HQ: London, United Kingdom
Respan
Hiring
What they do:
Self-driving observability, evals, and gateway for AI agents
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HQ: San Francisco, CA, United States
What they do:
Speed up non-coding tasks for engineering teams
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HQ: London, United Kingdom
What they do:
Environments as a service
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HQ: Los Angeles, CA, United States