AI Companies in San Francisco, CA
Browse 94 AI companies headquartered in San Francisco, CA, with a combined $202.1B in funding raised.
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AI Companies in San Francisco, CA
OpenAI
AI research and deployment company behind ChatGPT, the GPT series of large language models, DALL-E image generation, and the Sora video model. The fastest-growing consumer AI platform with over 200 million weekly active users.
Databricks
Unified analytics platform combining data engineering, data science, and machine learning on a single lakehouse architecture. Founded by the creators of Apache Spark, Databricks offers a Data Intelligence Platform with built-in governance, real-time streaming, and the open-source Unity Catalog. A critical infrastructure layer powering enterprise AI and one of the most valuable private tech companies globally.
CoreWeave
Operates a high-performance cloud platform that provides compute and infrastructure tailored for large-scale AI training and inference workloads.
Anthropic
AI safety company building reliable, interpretable, and steerable AI systems. Creator of Claude, a frontier large language model known for advanced reasoning, coding, and analysis. Anthropic pioneered Constitutional AI for model alignment and leads research in mechanistic interpretability. A top competitor in the foundation model race alongside OpenAI and Google DeepMind.
Nebius
Builds and operates large-scale AI infrastructure and capacity, expanding rapidly after a $4.3B raise and announcing strategic deals with Nvidia and Meta.
Scale AI
Data platform for AI, providing high-quality training data, model evaluation, and RLHF infrastructure for the world's leading AI labs. Scale AI's data engine powers frontier models from OpenAI, Meta, and government agencies. Also offers enterprise generative AI deployment and has become a critical supply-chain partner for the entire foundation model ecosystem.
Ineffable Intelligence
Ineffable Intelligence designs next-generation AI memory chips to overcome the memory bandwidth bottleneck limiting AI training and inference. As large language models demand ever more memory throughput, Ineffable's specialized memory architecture addresses a critical constraint that traditional DRAM and HBM solutions struggle to meet at scale.
World Labs
Spatial intelligence company building frontier AI models that can perceive, generate, reason, and interact with the 3D world. Founded by AI pioneer Fei-Fei Li.
Kalshi
Develops AI products and services and on 2026-03-19 closed an undisclosed $1.0 billion financing reported as part of a new $22 billion funding event.
Cursor
AI-first code editor built to supercharge developer productivity with intelligent autocomplete, chat, and deep codebase understanding. Forked from VS Code, Cursor integrates frontier LLMs directly into the editing experience for code generation, refactoring, and debugging. It has become the fastest-adopted AI coding tool among professional developers, reaching $100M+ ARR in record time.
Replit
AI-powered software development and deployment platform enabling anyone to build and ship applications from the browser. Replit's AI agent can generate, debug, and deploy full-stack apps from natural language prompts, backed by a cloud IDE with instant hosting. Used by millions of developers and learners, Replit is a pioneer in democratizing software creation through AI.
Perplexity
AI-powered answer engine that combines large language models with real-time web search to deliver cited, conversational answers. Backed by Jeff Bezos and NVIDIA.
Whoop
Develops wearable fitness technology and raised $575M in a Series G from athletes, celebrities and institutional investors, reaching a $10.1B valuation.
Mind Robotics
Intelligent robotics company developing collaborative robots for industrial manufacturing, leveraging production-scale data from a strategic partnership with Rivian.
Rhoda
Rhoda builds foundation models for industrial robots, trained on web-scale video data to enable robots to perform complex manipulation tasks autonomously. Their approach of learning general-purpose robotic skills from visual data, rather than task-specific programming, represents a paradigm shift in industrial automation development.
Harvey
Builds AI-powered products for the legal industry that automate workflows and provide domain-specific assistance for law firms and corporate legal teams.
Cloaked
Develops enterprise privacy and anti-scam solutions that help organizations protect data and mitigate risks from AI-driven scams and privacy threats.
EnerVenue
Develops and manufactures long-duration, non-lithium rechargeable battery systems and energy storage solutions for grid, industrial, and commercial applications, focusing on scalable manufacturing.
Tenex
Builds cybersecurity products that detect and mitigate AI-driven attacks targeting organizations and security teams across industries.
Science Corp.
Science Corp. is a clinical-stage neurotechnology company developing the Science Eye, a brain-computer interface retinal implant designed to restore functional vision for patients with degenerative eye diseases. Founded by Max Hodak, co-founder of Neuralink, the company combines AI-driven neural decoding with advanced bioelectronics to tackle one of the hardest problems in neural engineering.
Gradient
Provides seed-stage capital and support to AI startups, deploying a $220M fund to back early-stage founders building AI technologies.
Eridu
AI networking infrastructure company building purpose-built network switches designed to eliminate the network bottleneck limiting AI performance at scale.
Zipline
Builds and delivers artificial intelligence products and services for enterprise and consumer customers, backed by a $200M funding round at a $7.6B valuation.
ALSO
Designs and manufactures electric vehicles optimized for urban last-mile delivery, operating as a Rivian spinoff that reached unicorn status.
Code Metal
Verifiable code translation platform that automates conversion of code between programming languages and platforms with formal verification for correctness.
Starcloud
Building and operating data centers in space to provide alternative infrastructure for AI and cloud workloads via orbital deployments.
Sunday
Home robotics company building humanoid robots designed for household tasks including dishwashing, cleaning, and domestic chores. Sunday is developing affordable general-purpose home robots that use advanced manipulation and perception AI to navigate real kitchen and living environments, aiming to bring practical robotic assistance into everyday homes rather than just factories and warehouses.
Frore
Builds AI-focused semiconductor chips and hardware for deep-tech compute applications, positioning itself as a deep-tech chip startup.
Granola
Provides an AI-powered notetaker that automates capturing and summarizing meetings and conversations for improved productivity and record-keeping.
Railway
Railway is a modern cloud infrastructure platform that dramatically simplifies deploying and scaling web applications, APIs, databases, and background workers. Its instant deployment pipeline, automatic scaling, and developer-friendly interface have made it a fast-growing alternative to traditional PaaS providers, popular among startups and indie developers building production AI and web services.
Theo
Builds thUSD, a yield-bearing, gold-backed stablecoin and supporting crypto infrastructure aimed at investors seeking asset-backed dollar alternatives.
Juicebox
Juicebox is an AI-powered recruiting platform sourcing candidates across 30+ data sources, combining intelligent search, CRM, and automated outreach. Its AI agents identify, evaluate, and engage potential hires at scale, reducing time-to-fill for technical roles while helping recruiters discover non-obvious talent pools.
Gimlet Labs
This startup focuses on addressing critical performance constraints in artificial intelligence by developing innovative solutions to eliminate the common inference bottleneck.
Mirage
Develops advanced generative models to power a specialized AI-driven video editing application designed to streamline post-production workflows for digital content creators.
Doss
Provides AI-driven inventory management that integrates directly with enterprise ERP systems to optimize stock levels and replenishment decisions.
Gumloop
AI automation platform enabling teams to build and deploy AI agents for business tasks without coding expertise. Gumloop provides a visual drag-and-drop builder where operations, marketing, and support teams can create sophisticated AI-powered workflows that connect to existing tools and APIs, democratizing access to agentic automation for non-technical users across the enterprise.
Listen Labs
AI-powered user research platform that conducts and analyzes user interviews autonomously, enabling companies to gather customer insights at scale. Listen Labs uses conversational AI agents to run hundreds of structured interviews simultaneously, then synthesizes findings into actionable research reports, dramatically reducing the cost and time of qualitative user research for product teams.
Cognichip
Builds AI-driven systems that design and optimize semiconductor chips intended to accelerate and power artificial intelligence workloads.
RoboForce
Builds AI-driven robots to carry out dirty, dangerous factory tasks, reducing human exposure to hazardous industrial work and downtime risks.
Isembard
Industrial acceleration company applying AI and advanced engineering to forge new approaches to manufacturing and industrial processes. Isembard focuses on building AI-driven tools and systems that help manufacturers optimize production lines, reduce defects, and accelerate product development cycles, targeting sectors like aerospace, energy, and defense where precision and reliability are paramount.
Arc
Designs and manufactures high-performance electric speed boats and is expanding its product line and sales efforts into defense maritime applications.
Arc Boat Company
Designs and manufactures electric boats for competitive racing and consumer marine markets, positioning itself in the accelerating electric-boat industry.
its
Offers an AI automation platform that helps organizations design, deploy and scale intelligent automated workflows to streamline operations and reduce manual work.
Midas
Provides AI-focused instant-liquidity solutions for tokenised assets, enabling faster access to capital and improved tradability in digital-asset markets.
Standard Template Labs
Provides AI infrastructure solutions and platform tooling to help teams deploy and operate machine learning systems, founded by veterans from Amazon, Meta, and Datadog.
Candex
An AI-enabled platform that helps enterprises streamline and accelerate onboarding and management of global vendors and suppliers.
PAVE
Builds technology and services to rapidly relocate satellites between Earth orbits, enabling on-demand satellite repositioning and flexible orbital logistics.
Glimpse
Provides enterprise AI solutions after a strategic pivot; a Y Combinator alumnus that raised $35M Series A led by a16z to scale its offering.
Lyzr AI
Enterprise agent production infrastructure platform for building and deploying AI agents across business functions including support, procurement, HR, and sales.
Kestra
Provides enterprise orchestration software that coordinates AI models, data pipelines, and business workflows to streamline operations at scale.
Sandbar
AI-powered wearable technology company building Stream, a private voice ring device for capturing thoughts and notes via push-to-talk with AI-powered organization.
Stacks
Agentic finance automation platform reimagining the financial close process with AI-powered workflows for accounting and finance teams. Stacks deploys AI agents that automate reconciliations, journal entries, variance analysis, and month-end close tasks, cutting close timelines from weeks to days while improving accuracy and giving CFOs real-time visibility into financial data.
EPIC Microsystems
Designs and supplies hardware and systems to power AI data centers, providing infrastructure components for high-performance model training and inference.
Lucid Bots
Develops specialized autonomous drone technology designed to automate window-washing and exterior maintenance tasks for commercial buildings and high-rise structures.
Hosted.ai
Provides software and tools to improve GPU efficiency and utilization for AI training and inference workloads, targeting infrastructure operators and cloud providers.
Sequen
Builds TikTok-style personalization technology that lets consumer-facing companies deliver feed-like, behavior-driven content and product recommendations at scale.
Kana Intelligence
Agentic marketing platform that uses AI agents to find audiences, grow revenue, and protect brands through customizable campaign optimization. Kana Intelligence deploys autonomous marketing agents that continuously analyze customer data, optimize ad spend across channels, detect brand safety risks, and personalize messaging at scale, giving growth teams enterprise-grade performance without manual campaign management.
Rivia
Builds an AI engine to analyze clinical trial data and surface insights to help research stakeholders accelerate study decision-making.
Rebar
AI-powered quoting and sales automation platform for HVAC suppliers, enabling faster and more accurate proposals. Rebar digitizes the traditionally manual process of configuring, pricing, and quoting complex HVAC equipment by using AI to interpret project specifications, auto-select the right products, and generate professional proposals in minutes instead of hours.
Niv-AI
Develops solutions to boost GPU power efficiency and raw performance for AI workloads, helping operators extract more compute from existing hardware.
Mega
Mega builds an ambient, privacy-first AI interface that sits seamlessly between humans and AI systems in everyday life. Rather than requiring active prompts, Mega passively understands context and provides intelligent assistance while keeping data on-device, representing a new paradigm for consumer AI interaction beyond chatbots.
Littlebird
Offers an AI-assisted 'recall' tool that reads users' computer screens to surface previously viewed content and on-screen context for faster information retrieval.
Cellbricks
Develops 3D tissue implants and organ-replacement technologies to enable regenerative-medicine therapies and reduce reliance on donor organs.
Trayd
Delivers AI-enabled construction technology and enterprise software for builders and contractors, aiming to streamline workflows and on-site operations.
Multiply
Builds AI-driven solutions to restore and optimize B2B advertising performance in the ChatGPT era, helping marketers address decaying ad effectiveness.
Meadow
Provides an online platform that helps individuals plan, arrange, and manage funerals and end-of-life services.
Meadow Memorials
An online platform that helps people plan funerals, coordinate services and logistics, compare options, and create memorial pages through a web interface.
Nomadic
Provides data-wrangling software and infrastructure to collect, process and manage the large volumes of data produced by autonomous vehicles.
Manifold
Builds security and governance tools to identify, monitor, and mitigate risks posed by agentic AI and autonomous models used by enterprises.
Eternal.ag
Builds autonomous robots and accompanying software for commercial greenhouse operations to automate monitoring, tending and data-driven crop cultivation.
Wikifarmer
Provides AI automation software that accelerates agricultural sales and transactions, aiming to enable and close agricultural deals within a targeted 45-day cycle.
Rubi
Converts captured CO₂ into engineered materials and feedstocks for industrial, commercial, and circular-economy applications via carbon-utilization processes.
VerbaFlo
Builds AI agents for the real estate industry to automate property workflows, client engagement, and search-related tasks for brokers and property managers.
AgentMail
Email inbox API built specifically for AI agents, giving autonomous systems their own email inboxes to send, receive, and manage email communications. Backed by Y Combinator.
Health Universe
Builds interpretable healthcare AI tools designed to meet regulatory transparency requirements for clinical and compliance stakeholders.
PADO
Builds solutions to improve energy efficiency in data centres facing rising power demands from AI and cloud workloads.
Adronite
AI-powered secure development platform that helps engineering teams write, secure, and understand code at scale with full-context code intelligence. Adronite scans entire codebases to detect vulnerabilities, enforce security policies, and generate fixes automatically, integrating into CI/CD pipelines so that security becomes a seamless part of the development workflow rather than a bottleneck.
Reson8
Develops speech-focused AI solutions positioned as a response to Europe's perceived shortage in speech technology and capabilities.
HEARTio
Develops an artificial intelligence platform designed to analyze electrocardiograms (ECG) for the early detection and prediction of heart attacks to improve cardiovascular outcomes.
Denki
AI-powered auditing platform that automates complex audit workflows including evidence gathering, risk assessment, and compliance testing. Denki's intelligent agents handle tedious manual audit tasks at scale, enabling accounting firms and internal audit teams to complete engagements faster while improving accuracy and reducing the cost of financial assurance services.
Level Nine
Builds a modular "Lego for catalysts" platform intended to simplify catalyst development, assembly and experimentation as presented in its pitch deck.
Arinna
Develops compact, high-efficiency power generation and energy-management systems to solve spacecraft and orbital infrastructure power challenges.
Homaio
Builds a platform that opens EU carbon markets to retail investors and everyday consumers, enabling broader participation in emissions trading.
Zalos
Builds AI-powered CFO agents for enterprise finance teams, aiming to automate CFO workflows and compete with offerings like OpenClaw.
Galtea
Builds tooling to resolve the ‘invisible bottleneck’ that impedes enterprise AI deployments, targeting organizations scaling production ML and AI systems.
Blify
Develops a platform that integrates AI-driven educational and professional development tools directly within enterprise communication environments like Slack and Microsoft Teams.
Pickmybrain
Builds AI "digital brains" that capture and operationalize human experts' knowledge to help organizations scale specialist decision-making and guidance.
Oriane
Builds multimodal AI to search, index and surface social video content, aiming to become the "Google of social video".
First Concepts
Provides a specialized platform that enables creative agencies to effectively implement and utilize artificial intelligence technologies within their design and production workflows.
Rhonexum
Develops cryogenic technology intended to enable scalable quantum computers and support next‑generation AI infrastructure and quantum hardware deployment.
eYou
Builds a real-time, AI-driven fact-checking social platform positioned as a European rival to X to reduce misinformation.
Theia Insights
It develops AI-driven macroeconomic models to generate market signals and forecasts for institutional investors and financial firms.
VITL
Builds software to overhaul cash-pay clinic prescribing workflows, capitalizing on demand driven by the GLP-1 medication boom.
Mandel AI
Builds AI-powered software to improve supply chain efficiency for businesses, enabling logistics and operations teams to optimize processes and reduce inefficiencies.