Mintlify
Hiring
What they do:
The intelligent knowledge platform
Quick facts:
HQ: San Francisco, CA, United States
Top Developer Tools Startups in the United States
This list has 603 startups and was last updated on Oct 15, 2026. 157 of them are hiring right now. Biggest hubs: San Francisco (441), New York (75), and Los Angeles (20). Largest teams: GitLab, PagerDuty, and Algolia. Latest round: Supabase raised $150M (Oct 2, 2026).
603 startupsPage 2 of 17
What they do:
Automatically find and fix your software vulnerabilities
Quick facts:
HQ: San Francisco, CA, United States
Funding:
$7.03M · SAFE · Mar 2026
Finch
Hiring
What they do:
Finch is the Employment Data Platform
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HQ: San Francisco, CA, United States
Veryfi, Inc.
Hiring
What they do:
Document AI. One API Call.
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HQ: San Francisco, CA, United States
What they do:
Web search rebuilt for LLMs
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HQ: San Francisco, CA, United States
AssemblyAI
Hiring
What they do:
The best way to build Voice AI apps
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HQ: New York, NY, United States
Replit
Hiring
What they do:
Collaborative in-browser IDE
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HQ: San Francisco, CA, United States
What they do:
One API to get clean data from any website for your AI agents at scale
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HQ: Austin, TX, United States
Infisical
Hiring
What they do:
Unified platform for secrets, certs, and privileged access management
Quick facts:
HQ: San Francisco, CA, United States
Paragon
Hiring
What they do:
The embedded integration platform for SaaS apps.
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HQ: Los Angeles, CA, United States
What they do:
Beautiful, personalized, interactive developer hubs
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HQ: New York, NY, United States
GrowthBook
Hiring
What they do:
Open source feature flagging and A/B testing
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HQ: San Francisco, CA, United States
What they do:
Bluetooth to Space
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HQ: Las Vegas, NV, United States
What they do:
Glide turns spreadsheets into beautiful, intelligent apps.
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HQ: San Francisco, CA, United States
Thunkable
Hiring
What they do:
Thunkable is the no-code platform to build powerful native mobile apps
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HQ: San Francisco, CA, United States
Tint
Hiring
What they do:
Makes it easy for tech platforms to embed insurance into products
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HQ: San Francisco, CA, United States
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:
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
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
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:
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
Lago
Hiring
What they do:
The AI Native Billing Platform
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HQ: San Francisco, CA, United States
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
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:
The Javascript framework for building AI agents, from the Gatsby devs
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HQ: San Francisco, CA, United States