← Startups in San Francisco

San Francisco Developer Tools 307 startups

"Developer Tools" Startups in San Francisco

Every active San Francisco startup we index that carries the "Developer Tools" tag.

All startups in San Francisco → "Developer Tools" startups nationwide →

Last updated

2026-09-02

Hiring right now 10% 30 of 307

Open roles 748

City San Francisco

Our index currently lists 307 tech startups in San Francisco tagged "Developer Tools" — a city×tag slice of the live directory, not every "Developer Tools" company nationwide and not every San Francisco startup regardless of tag. 10% of this slice is hiring right now (31 of 307). Apply links on each profile go to the company's own site; we don't act as a middleman. "Developer Tools" startups in San Francisco include Supabase, Retool, PostHog, Algolia, and Alpaca. Categories represented here: AI / ML, Dev Tools, and Infrastructure. YC batches in this slice: Sp26, S24, S26, and S25, among others. Widen the view anytime: all San Francisco startups at /startups/location/san-francisco, or every "Developer Tools" company nationwide at /startups/tag/developer-tools.

Build in a weekend. Scale to millions.

Developer ToolsOpen SourceBig Data

Build internal tools fast.

Developer Tools

The single platform to analyze, test, observe, and deploy new features

Developer ToolsB2BOpen Source

A developer-friendly and enterprise-grade search API.

Developer ToolsSaaSB2B

API-first stock and crypto brokerage platform

Developer ToolsFintechAPI

Digital Analytics Platform

Developer ToolsB2BAnalytics

Powers OTT online video providers with video developer tools.

Developer ToolsVideo

Web search rebuilt for LLMs

Developer ToolsSearchAI

A complete DevOps platform delivered as a single application.

Developer ToolsDevSecOpsOpen Source

Change the world to value skills over pedigree

Developer ToolsRecruiting

A single API for all your integrations

Developer ToolsSaaSOpen Source

Collaborative in-browser IDE

Developer ToolsCollaboration

A simple API for managing in-app subscriptions

Developer ToolsSubscriptions

We make mobile apps using AI.

Artificial IntelligenceDeveloper ToolsGenerative AI

Open source agent generation framework

Artificial IntelligenceDeveloper ToolsInfrastructure

One group chat to hear and steer your coding agents.

Artificial IntelligenceDeveloper ToolsProductivity

Email Inboxes for AI Agents

Developer ToolsAPIEmail

Phone Numbers for AI Agents

Artificial IntelligenceDeveloper ToolsAPI

Product Analytics for Conversational Agents

Artificial IntelligenceDeveloper ToolsAnalytics

Context layer for production-grade AI agents

Artificial IntelligenceDeveloper ToolsOpen Source

Autonomous Customer Operations

Artificial IntelligenceDeveloper ToolsB2B

Reliable and safe data engineering and data science agents

Artificial IntelligenceDeveloper ToolsData Science

High performance file system for agents

Developer ToolsMachine LearningBig Data

Apollo helps engineering teams accelerate delivery

Developer ToolsOpen SourceGraphQL

Aquarium Learning

We help ML teams improve their models by improving their datasets

Deep LearningDeveloper ToolsGenerative AI

The Cloud Coding Agent

Developer ToolsEnterprise SoftwareCloud Computing

API sandboxes, built for AI agents

Artificial IntelligenceDeveloper ToolsAPI

The high-performance file system that connects AI to data

Developer ToolsMachine LearningBig Data

Real-world sandboxes to test agents and agent-facing software

Developer ToolsSaaSInfrastructure

Continuous Deployment at any scale, for all developers.

Developer ToolsDevSecOps

Cloud-native stream processing

Developer ToolsSaaSOpen Source

Software that streams data from databases to warehouses in real-time

Developer ToolsSaaSData Engineering

Developer ToolsSaaS

Open Source React.js Library for AI Chat

Developer ToolsGenerative AIChat

Faster builds, zero effort.

Developer ToolsInfrastructure

AI enabled RPA using ChatGPT and computer vision

DocumentsArtificial IntelligenceDeveloper Tools

Infuse knowledge into language models with just 10 samples

AIOpsDeep LearningDeveloper Tools

AI agents for E2E testing across mobile & web

Artificial IntelligenceDeveloper ToolsB2B

Google-level engineering productivity suite

Developer ToolsSaaSB2B

Multi-agent orchestration platform

Artificial IntelligenceDeveloper ToolsB2B

Observability and evaluation platform for LLM apps.

AIOpsArtificial IntelligenceDeveloper Tools

Monitoring and learning layer for long-running agents

Artificial IntelligenceDeveloper ToolsB2B

The authentication framework for TypeScript

Developer ToolsSecurityOpen Source

The App Store for Server Software

Developer Tools

The perpetual sandbox platform

Artificial IntelligenceDeveloper ToolsCloud Computing

Stablecoin API for global payments

Developer ToolsFintechCrypto / Web3

BuildBuddy provides enterprise features for Bazel — the open source…

Developer ToolsSaaS

Bun is an incredibly fast all-in-one JavaScript toolkit

Developer ToolsOpen Source

Showing 48 of 307 Filter the directory by this slice →

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1 of 4 similar companies is hiring right now · most common: Engineering

Real-time. Big data. PostgreSQL

Open SourceBig DataDatabases

The issue tracker built for high-performance teams.

SaaSDev ToolsProject Management

Build internal agents to automate back office work with one prompt

Developer friendly drop in payouts infrastructure

FintechPaymentsAPI

All startups in San FranciscoEvery tag "Developer Tools" startups nationwideEvery city "Artificial Intelligence" startups in San Francisco606 startups "AI" startups in San Francisco572 startups "B2B" startups in San Francisco520 startups "SaaS" startups in San Francisco428 startups "Fintech" startups in San Francisco180 startups "Generative AI" startups in San Francisco137 startups "Consumer" startups in San Francisco120 startups "Machine Learning" startups in San Francisco114 startups

Frequently asked questions

How many "Developer Tools" startups are in San Francisco?

Our index currently tracks 307 active tech startups in San Francisco tagged "Developer Tools". Counts move as scrapers discover new companies and flag shutdowns inactive.

Which "Developer Tools" startups are based in San Francisco?

Companies on this page include Supabase, Retool, and PostHog, plus 304 more below. Each profile links to the company's site and any open roles we scrape.

How is this different from the San Francisco startups page or the "Developer Tools" tag page?

/startups/location/san-francisco lists every indexed startup in San Francisco across tags. /startups/tag/developer-tools lists every "Developer Tools" startup nationwide. This page is the intersection — only companies that resolve to both San Francisco and "Developer Tools".

Are these San Francisco "Developer Tools" startups hiring?

31 of the 307 companies on this page currently have open roles in our jobs index.

How often is this list updated?

Automated scrapers refresh on the same daily cadence as the rest of the directory. The last index update was 2026-09-02.