8 Internet companies in San Francisco.
By the Numbers
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
Known Dating
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
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.
Runloop
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.
AthenaHQ
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
Fillout
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
Fractional AI
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
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.
