59 Best Developer Tools Startups in San Francisco to Watch in 2026

The Definitive Seedtable Ranking of Developer Tools Startups in San Francisco

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 59 start-ups with an aggregate funding of $8.4b. The average funding per company in this subset is $142.5m.

Last update to the database: May 19, 2026. See changelog.

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11

Funding Rounds

$5.0b

Money raised

AI safety and research platform.

Location:

Key people:

3

Funding Rounds

$454.0m

Money raised

Fal is an AI-driven media creation platform founded in 2021 by Burkay Gur.

Location:

Key people:

5

Funding Rounds

$241.5m

Money raised

Hasura is a software and development tools company, offering tools for developers to simplify application development.

Location:

Key people:

7

Funding Rounds

$248.0m

Money raised

Sourcegraph offers universal code search for developers and enterprises.

Location:

Key people:

4

Funding Rounds

$193.3m

Money raised

Amunix is an immuno-oncology company focused on developing immune-activating biotherapeutics for patients with solid tumor cancers.

5

Funding Rounds

$90.0m

Money raised

Strapi is a company offering an open-source headless content management system (CMS).

4

Funding Rounds

$159.0m

Money raised

Aera Technology is a software company offering business automation functions.

8

Funding Rounds

$171.8m

Money raised

A fully customizable all-code backend for content-driven websites and apps, their builders and creators. Power all your content operations from a single platform.

5

Funding Rounds

$81.8m

Money raised

Fauna Inc is a data application programming interface for applications.

Location:

Key people:

8

Funding Rounds

$293.8m

Money raised

A company providing an API allowing its users to encode, host and stream videos.

7

Funding Rounds

$255.0m

Money raised

Weights and Biases is a software company that makes developer tools for machine learning.

Location:

Key people:

5

Funding Rounds

$50.1m

Money raised

Tatum is a blockchain developer platform. It offers products such as NFT plug-ins for Wordpress, software development kits for over 40 protocols and an API that enables NFT minting across various blockchains.

1

Funding Rounds

$25.0m

Money raised

Composio is a San Francisco–based agentic AI infrastructure platform enabling developers to connect AI agents with 90–250+ tools via secure, SOC 2‑compliant integrations. Launched by co‑founders Soham Ganatra and Karan Vaidya in 2024–25, it accelerates enterprise AI automation.

3

Funding Rounds

$36.7m

Money raised

Weaveworks is a company developing a delivery pipeline platform for building and operating applications, helping developers connect, monitor, and manage microservices and containers.

1

Funding Rounds

$27.0m

Money raised

Rutter builds an API that integrates e-commerce platforms and marketplaces.

4

Funding Rounds

$38.5m

Money raised

Merge is a B2B integrations platform.

Location:

Key people:

3

Funding Rounds

$16.8m

Money raised

LaunchNotes is a program for software teams to communicate product change, internally and externally.

1

Funding Rounds

$10.0m

Money raised

Skyramp is a B2B SaaS company providing AI-driven software testing and automation tools. Founded by Dr. Nithin Michael, it helps development teams accelerate quality assurance with intelligent test execution, boosting efficiency and reliability across software delivery lifecycles.

1

Funding Rounds

$6.0m

Money raised

Woz is a San Francisco-based company founded by Ben Collins.

1

Funding Rounds

$14.5m

Money raised

Firecrawl offers a developer-first platform that converts websites into clean, structured data optimized for AI applications through a simple API. Their platform combines web search, scraping, and AI-powered parsing into a unified solution, focusing on core developer priorities of reliability, speed, and ease of use .

2

Funding Rounds

$8.5m

Money raised

LlamaIndex is an open-source data framework for connecting custom datasets with large language models (LLMs) in order to build applications.

Location:

Key people:

4

Funding Rounds

$152.6m

Money raised

Enable is a cloud-based software tool for managing business-to-business rebates founded in 2016 by David Hunt, Denys Shortt and Andrew Butt.

9

Funding Rounds

$352.2m

Money raised

Netlify is a San Francisco-based website hosting and publishing company.

Location:

Key people:

2

Funding Rounds

$89.0m

Money raised

A software company offering a headless content management system (HCMS) for lager enterprises that integrates with other software marketing technologies.

Location:

Key people:

2

Funding Rounds

$15.2m

Money raised

Rootly is a San Francisco-based software company offering an incident management platform that automates administration tasks.

Location:

Key people:

2

Funding Rounds

$13.6m

Money raised

Zight, formerly CloudApp, is a screen recorder that allows users to create, edit, and share videos, screenshots, and GIFs.

2

Funding Rounds

$52.0m

Money raised

Prisma is a data access platform for modern applications founded in 2016.

1

Funding Rounds

$8.5m

Money raised

Bubbles is a collaboration tool that allows users to tag anything on their screen and invite teammates to discuss in-context.

Location:

Key people:

1

Funding Rounds

$19.5m

Money raised

Eppo is a San Francisco-based company founded in 2021 by Chetan Sharma.

Location:

Key people:

4

Funding Rounds

$43.9m

Money raised

Deepnote is a company that has created an online platform for data scientists. It was founded in 2019 and is located in San Francisco, California.

Location:

Key people:

5

Funding Rounds

$34.0m

Money raised

ViSenze is an Artificial Intelligence company founded in Singapore, as part of NExT, a joint research centre between the National University of Singapore and Tsinghua University of China.

Key people:

2

Funding Rounds

$36.7m

Money raised

Enterprise Data Platform for Salesforce that offers powerful tools to protect Salesforce data.

3

Funding Rounds

$32.0m

Money raised

Crate.io is an enabling Data Insights at Scale founded in 2013.

1

Funding Rounds

$3.1m

Money raised

Waypoint AI is an AI-powered escalation management platform for developers founded in 2024 by Liam Boogar Azoulay, Steve Boogar, Tomas Polivka and Jiri Dubansky.

Location:

Key people:

1

Funding Rounds

$3.2m

Money raised

TabbyML is a company developing an open-source, self-hosted AI coding assistant called Tabby, which provides multi-line and full-function suggestions in real time.

3

Funding Rounds

$18.0m

Money raised

Sqreen is a San Francisco-based cybersecurity company developing a monitoring and protection platform for corporations.

Location:

Key people:

2

Funding Rounds

$17.4m

Money raised

A technology company providing a collaborative SQL editor for development teams.

Location:

Key people:

1

Funding Rounds

$20.0m

Money raised

A software company offering a headless content management system for editing online content.

Location:

Key people:

2

Funding Rounds

$18.1m

Money raised

Crowdbotics is an artificial Intelligence / Machine Learning company founded by Anand Kulkarni.

1

Funding Rounds

$7.9m

Money raised

StackBlitz is a San Francisco-based company founded in 2017 by Albert Pai.

Location:

Key people:

4

Funding Rounds

$13.6m

Money raised

Team Labs developed collaborative software experience for company teams.

1

Funding Rounds

$6.3m

Money raised

Open-source developer tools and infrastructure provider for MCP

Location:

Key people:

1

Funding Rounds

$10.5m

Money raised

Database tool that turns databases into easy-to-use spreadsheets.

2

Funding Rounds

$11.8m

Money raised

Access management platform that helps enterprises create scalable workflows.

1

Funding Rounds

$12.0m

Money raised

Mondoo is a security solution for DevOps and security teams.

3

Funding Rounds

$4.9m

Money raised

Platform for building modern reactive apps with realtime collaboration and offline capabilities.

1

Funding Rounds

$4.6m

Money raised

CoScreen is a remote collaboration platform that offers multi-user screen sharing, multi-user remote control, and audio chat.

Key people:

3

Funding Rounds

$7.3m

Money raised

Grafbase is a the data platform for developers founded in 2020 by Fredrik Björk.

Location:

Key people:

2

Funding Rounds

$2.7m

Money raised

DataPad is an AI-driven KPI monitoring platform founded in 2022 by Cem Ruso.

Location:

Key people:

2

Funding Rounds

$2.9m

Money raised

Qonversion is a the subscription data platform for mobile-first companies founded by Eugene Virnik.

Location:

Key people:

1

Funding Rounds

$3.0m

Money raised

Open-source observability and analytics platform for complex LLM apps

1

Funding Rounds

$4.6m

Money raised

Loft Labs is a San Francisco-based company.

1

Funding Rounds

BentoML.ai is an enterprise-ready MLOps platform that is making it easy to manage and deploy machine learning models.

$2.5m

Money raised

Humanity is a software that helps businesses schedule employee shifts founded in 2013.

1

Funding Rounds

$1.5m

Money raised

Cobalt is a cyber security company offering a platform for on-demand penetration tests.

1

Funding Rounds

$1.0m

Money raised

Serverless Stack is a company founded in 2017 by Anomaly Innovations.

Key people:

1

Funding Rounds

$1.6m

Money raised

ToolJet Solutions, Inc. is a company founded in 2021.

1

Funding Rounds

$120.0k

Money raised

Database focused on efficiently handling and processing time-series data.

1

Funding Rounds

$2.0m

Money raised

Platform dedicated to developing and constructing new hardware for the AI industry from the ground up.

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