Technology startups in San Francisco

Decart

San Francisco

Decart provides efficient systems-level AI infrastructure that dramatically accelerates training and inference of the largest generative models, enabling Decart to train its own foundational interactive models and offer real-time access to

Listen Labs

San Francisco

Listen is an autonomous market researcher that uses AI to design interviews, recruit participants, and analyze responses, delivering insights in hours rather than weeks, 24/7. Trusted by Google, Microsoft, SKIMS, Nestlé, and hundreds of ent

Noon

San Francisco

Noon (formerly Weaver) is an AI-native product design tool that links design and code so product teams can go from idea to shipped interface.

E2B

San Francisco

E2B is a Series A startup building the next hyperscaler for AI agents. It has seven figure revenue and has raised over $32M from investors including Insight Partners, serving Perplexity, Hugging Face, Manus, and Groq in San Francisco and Pr

Koah

San Francisco

Koah Labs is building an ad network to power AI-native products, focusing on monetization methods that capture value from free users without detracting from the user experience.

Eigen

San Francisco

Eigen is building a consumer social company focused on peer-like connections rather than an assistant, aiming to redefine social experience with intuitive product design and human-centered interactions.

Yutori

San Francisco

A startup building AI agents that reliably perform everyday web tasks, pursuing an agent-first stack from model training to generative interfaces; emerged from stealth in March and raised a $15M seed led by Radical Ventures, with Fei-Fei Li

Eragon

San Francisco

Eragon is an AI Operating System for enterprises that serves as a reasoning engine, learning and acting across the organization, embedding into workflows to unify data, people, and processes into a context-aware workspace for billion-dollar decisions.

Brainbase

San Francisco

Brainbase Labs is building an AI Workforce by deploying AI agents that act as employees for front-line support to back-office tasks. Backed by top investors and with a multinational team, it has 150+ live deployments across automotive, hosp

Known Dating

San Francisco

Known positions itself as a generational companion for dating, friendships, and networking, supporting connections across diverse contexts and accompanying people through the full spectrum of relationships.

Highlight

San Francisco

The company markets itself as an on-screen personal assistant and aims to make users 10x faster at their jobs, positioning its product as a tool to streamline work and speed up daily tasks through on-screen assistance.

Sphinx

San Francisco

Sphinx builds AI analysts that operate inside browsers and internal systems. Its agents, used by banks and fintechs across the United States, Canada, Europe, and Latin America, handle 90% of manual work and cut costs by 4x.

Paradigm

San Francisco

Paradigm is a San Francisco-based AI-powered workspace focused on large-scale agent orchestration, backed by Y Combinator and founders from Dropbox, Intercom, Langchain, Redis, Behance, and Posthog.

Runloop

San Francisco

Runloop focuses on infrastructure and orchestration for AI agents, aiming to power the Agentic Web. With a small team of engineers formerly from Google and Stripe, it tackles productionizing AI for software engineering at scale.

Turgon

San Francisco

At Turgon, a San Francisco and New Delhi startup founded by serial entrepreneurs, combines AI agents with human-in-the-loop solutions to build, integrate, and run the enterprise IT stack, tapping into a $1.5 trillion IT services market.

Variant

San Francisco

Variant is building a code generation platform that aims to bring generative creativity to design tools, and it is well-capitalized and backed by notable investors.

Matrices

San Francisco

The company builds training environments for frontier AI labs to train agents that use computers like humans, enabling the development of such agents.

FlowState

San Francisco

FlowState provides video search and video workflow automation solutions, enabling activation of archival footage, needle-in-a-haystack searches, and automated actions based on video content, establishing itself as a technology-focused provi

AthenaHQ

San Francisco

AthenaHQ provides an AI Search platform that helps global brands improve visibility, discoverability, and branding. It counts Coinbase, SoFi, and Twilio among its customers and serves over 200 clients with more than $2M ARR, underscoring ra

Vantara

San Francisco

Vantara positions itself as an AI product engineer that monitors user sessions and feedback from support, sales, and channels, identifies patterns, prioritizes what to build, and enables PRs and A/B tests to close the loop between user inpu

LlamaIndex

San Francisco

LlamaIndex offers an open-source framework that lets developers build agents to parse, extract insights, and act on enterprise documents, reasoning over data and scaling for production. It has 4M+ monthly downloads and 200M+ documents proce

Firecrawl

San Francisco

Firecrawl provides an API to extract web data and convert URLs into LLM-ready markdown or structured data in a single call. It has traction (millions ARR in year one and 68k+ GitHub stars) with customers including MongoDB, Coinbase, and Sna

Kindroid

San Francisco

Kindroid creates virtual people that enrich real lives, with millions of users and rapid, profitable growth. It has been featured by the New York Times, the Wall Street Journal, and Business Insider and is backed by Silicon Valley investors

Chronicle

San Francisco

Chronicle is an AI-native presentation platform backed by Accel and SquarePeg, marketed as the modern 'Cursor for Slides' with hundreds of thousands of users; led by Mayuresh and Tejas, it earned Product Hunt's #4 Product of the Year in 202

Bild AI

San Francisco

A Y Combinator Winter 2025 batch company backed by investors who funded PlanGrid, Dropbox, and Airbnb, it uses AI to analyze blueprints, developing and coordinating computer vision object detection models to advance ML and algorithms and ma

Fillout

San Francisco

Fillout runs a no-code platform for forms, surveys, quizzes, scheduling, and workflows, serving tens of millions of users monthly and 50,000+ active teams with double-digit growth; its second product, Zite (launched April 2025), is the fast

AirGarage

San Francisco

AirGarage is a full-stack parking operator that digitizes and automates parking lots and garages, managing ads, payments, and enforcement across 300+ sites in 38 states, targeting the $131B parking market; backed by Andreessen Horowitz, Flo

MasterClass

San Francisco

MasterClass operates a streaming platform (launched in 2015) that lets users learn from world-renowned instructors by accessing courses taught via streaming video.

Fractional AI

San Francisco

Fractional AI builds bespoke generative AI software to move AI from concept to production, with all projects deployed. Based in San Francisco, it employs senior engineers and emphasizes experienced, high impact delivery, and is actively hir

Coinbase

San Francisco

Coinbase aims to increase economic freedom by building an on-chain platform to help shape the future global financial system through crypto and blockchain technology.

DoorDash

San Francisco

DoorDash is a San Francisco-based technology company building a local delivery platform by partnering with merchants, hiring drivers, and developing logistics software to enable real-time delivery of goods and services. It aims to be the wo

Artificial Analysis

San Francisco

Artificial Analysis is an AI benchmarking and insights firm that helps labs and enterprises understand AI capabilities and shape strategies, serving as go-to authority for labs, enterprises, media, and policymakers; benchmarks are trusted b