All startups in San Francisco Bay Area

Additive AI

San Francisco

Additive AI, founded in San Francisco, builds AI-powered tools to automate document-heavy tax and accounting workflows; acquired by Thomson Reuters in 2025, it operates as part of a global leader to help professionals make faster, more info

Pearson Labs

San Francisco

Pearson Labs presents itself as a small, high-impact, lean team focused on delivering meaningful results, emphasizing impact over scale; no information is available about its mission, products, services, or market position.

Cerulion

Mountain View

Cerulion, founded in 2024 by MIT PhDs, is a robotics company building a backwards-compatible open source robot middleware as a modern foundation for robotic systems, backed by a seed round from top-tier investors, motivated by dissatisfacti

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

Indigo (In Stealth)

San Francisco

An AI healthcare startup enabling physicians to own independent practices, aiming to reshape healthcare. It achieved product-market fit in under 9 months with ARR of xMM and a pipeline to xxMM by 2026, led by technologists, physicians, engi

Apple

Cupertino

Apple designs and sells consumer electronics, software, and services, including the iPhone, Mac, iPad, Apple Watch, and the App Store ecosystem.

Archon

San Francisco

Archon develops automated, full-stack systems to secure critical public infrastructure and advance national cybersecurity at the intersection of national security and infrastructure protection. The company is rapidly growing, signaling mome

Chestnut

San Francisco

Chestnut is the first AI mortgage lender licensed in Texas and Colorado, completed YC X25 and backed by Y Combinator and Olive Tree Capital, founded by Spencer Brown to disrupt the $128B mortgage market with AI.

Conduit Intelligence

San Francisco

The company develops noninvasive thought-to-text technology to bridge communication between people and devices by reducing the language barrier.

Ego

San Francisco

Ego is a startup building an Infinite Game—a persistent virtual 3D world with embodied AI agents. Led by Vishnu Hari (ex-Facebook AI, Meta Reality Labs), it leverages Unreal Engine, C++, AWS, Azure, and Roblox, and participates in YC Launch

Dream

San Francisco

Dream is an AI platform that automates residential architecture and construction planning, transforming a slow, expensive process into an instantaneous, affordable one by enabling AI-driven design and planning for homes.

Relixir

San Francisco

Relixir is an autonomous search share maximization platform serving 40+ B2B clients. Founded by Berkeley alumni, it participated in Y Combinator's X25 batch and ranks as one of its fastest-growing companies.

Bindwell

San Francisco

Bindwell uses AI to discover new pesticides, replacing slow lab work and accelerating discovery by 100×. The company is a small team of Caltech and Wolfram Research alumni with drug-discovery ML experience, aiming to rebuild agrochemical R&

Strada

San Francisco

Strada provides AI agents that handle sales and service calls 24/7 for insurance brokers, MGAs, and carriers, enabling them to scale operations. Based in San Francisco and backed by Y Combinator, it serves carriers and MGAs, engaging thousa

Kato

San Francisco

Kato builds an AI-powered servicing platform that automates critical workflows across channels with full compliance and best-in-class recoveries, in production with major fintech lenders including Bilt Rewards and Parafin, emphasizing a com

Aloe Identity

San Francisco

Aloe Identity aims to reimagine enterprise identity from the ground up. The founders and early team previously built Fleetsmith, acquired by Apple in June 2020 after raising over $40 million and employing 85 people.

Smithery

San Francisco

Smithery is a platform that helps developers discover and deploy services for communicating with AI agents, enabling seamless integration by providing access to agentic services and accelerating agentic AI development.

Zettascale

San Francisco

Zettascale develops reconfigurable, energy-efficient AI chips for training and inference that optimize each model’s dataflow, aiming to outperform GPUs in speed and power efficiency and to save data centers billions in cooling and energy co

Midcentury Labs

San Francisco

Midcentury is building a next-generation platform for audio AI that enables secure onboarding of private data and expert-labeled data services from global contributors to tackle multimodal AI with massive data pipelines; it recently raised

StackAI

San Francisco

Stack AI provides a no-code drag-and-drop platform to design, test, and deploy AI workflows that leverage large language models to automate business processes. Its visual interface lets users connect data sources with different AI models to

Mechanize

San Francisco

Mechanize builds high-fidelity virtual work environments and benchmarks to train AI agents to master real-world jobs, starting with software engineering, with the goal of full automation of work and the entire economy through realistic simu

Hud

San Francisco

The company provides a platform for building reinforcement learning environments and evaluations, enabling researchers to design, run, and assess RL experiments, and offers the CUA Evals framework with scalable agent evaluation and training

Aravolta

San Francisco

Aravolta develops software to monitor, optimize, and control data centers, with a focus on data center infrastructure management (DCIM) software. Its mission is to build the next generation of DCIM solutions.

Veritus Agent

San Francisco

Veritus is a YC-backed AI-native platform for loan servicing and debt collection that operates its own collections agency on the platform, acquires charged-off debt to service it with in-house AI agents, and owns the full stack from acquisi

NOSO LABS

San Francisco

NOSO LABS builds agents for the trades to help technicians diagnose accurately and sell 10x better, providing tools that improve diagnostic precision and sales performance for trade professionals.

GroundControl

San Francisco

GroundControl is a vertical SaaS company solving inefficiencies in regulated manufacturing, focusing on aerospace and defense, enabling high-quality parts with precision. It operates in the U.S., serves North American aerospace/defense clie

Trace Neuroscience

South San Francisco

Trace Neuroscience is a biopharmaceutical company that aims to extend the promise of genetic medicine to patients.

Bedrock Robotics

San Francisco

Bedrock Robotics brings advanced autonomy to the built world, helping the construction industry build at the pace today's society demands. Our technology upgrades existing heavy equipment, enabling truly autonomous operation with expert level quality and superhuman safety. At a time when we need to build faster than ever—from housing to data centers to factories and energy infrastructure—autonomous construction isn't just an innovation, it's an economic necessity.

ZOLA iNTELLIGENCE

San Mateo

Pioneering the world’s first enterprise technology platform purpose-built for energy access markets.

Physical Intelligence

San Francisco

Physical Intelligence is bringing general-purpose AI into the physical world. We are a group of engineers, scientists, roboticists, and company builders developing foundation models and learning algorithms to power the robots of today and the physically-actuated devices of the future.

Fundamental

San Francisco

For decades companies have relied on archaic tools to inform decisions and make bets on the future. Until now. Fundamental empowers businesses to turn gambles into guarantees and determine their future with far greater accuracy than ever before. Built by DeepMind alumni and trusted by Fortune 100 enterprises, NEXUS is our most powerful Large Tabular Model (LTM). By revealing the hidden language of tables, NEXUS unlocks trillions of dollars of value by giving businesses the Power to Predict™.

Virtue AI

San Francisco

Virtue AI bridges the gap between AI product development and deployment for enterprises. We offer comprehensive, end-to-end AI safety and security solutions to ensure the safe, secure, and privacy-preserving deployment of AI products. Our advanced platform provides rigorous testing, alignment, and moderation across the AI lifecycle, proactively mitigating risks such as cybersecurity vulnerabilities, safety threats, and hallucination issues. Overall, Virtue AI deploys a rigorous testing framework for any AI model or system, offering actionable steps to mitigate potential risks. Our assessments empower enterprises to confidently leverage the power of AI while optimizing their systems and maintaining compliance. By combining expertise in machine learning, security, safety, law, and sociology, we bridge the gap between AI development and secure deployment, setting new standards for secure and responsible AI practices across industries. Our mission is to empower enterprises with innovative solutions that ensure responsible AI development and deployment. By continuously pushing the boundaries of AI safety research and sharing our findings, we contribute to elevating the AI safety community and creating a safer digital future.

Krane

San Francisco

Krane focuses on simplifying material management across the construction supply chain, leveraging a team with over 85 years of combined construction experience to transform how construction gets done, one project at a time.

Magical

San Francisco

Magical is an agentic AI platform that automates complex workflows in one week, delivering IT, accounting, healthcare admin, back-office automation with AI employees and human-like decision-making; Magical claims 90%+ reliability for 950k+

Kino AI

San Francisco

Kino AI is a startup backed by Y Combinator and AI Grant, led by Luke Igel (MIT ’22) formerly at NASA JPL, SpaceX, Slack, CSM, and KoKo; the founding team includes members from MIT, SpaceX, and NASA.

Kumo

Mountain View

Kumo provides a platform to train and run state-of-the-art AI models on relational data, powering recommendations, fraud detection, risk scoring, and entity resolution in apps used by hundreds of millions. Led by pioneers in Relational Deep

Trial Library

San Francisco

Trial Library is an AI-enabled research organization advancing access to cancer precision medicine by empowering patients and providers, with AI-powered navigation that helps patients discover relevant clinical trials.

Airbyte

San Francisco

Airbyte, founded in 2020, is an open-source data integration company that positions itself as the open-source standard for EL(T); it covers the long tail of integrations with adaptable connectors and serves over 25,000 companies, backed by

Zingtree

Palo Alto

Zingtree is the first AI Agent Builder for complex support, enabling enterprises to deliver accurate, compliant AI-driven resolutions powered by real-time backend data. It handles millions of high-stakes interactions with enterprise-grade s

Framework

San Francisco

Framework, a San Francisco-based company founded in 2020, remakes consumer electronics to respect people and planet; it has been named to TIME's Best Inventions (2021, 2023) and Fast Company's Most Innovative Companies (No. 35, 2022), with

Rattle

San Francisco

Rattle redefines how revenue teams and leaders interact with go-to-market systems, serving thousands of revenue-leader customers at leading companies. Notable customers include Gong, Clearbit, WordPress, Zenefits, and Miro.

NinjaTech AI

Palo Alto

Meet Ninja, your AI Agent for unlimited productivity. Assign Ninja tasks across research, writing, file analysis, coding, image generation, scheduling, and more.

Muon Space

Mountain View

Muon Space is an end-to-end Space Systems Provider that designs, builds, and operates satellite constellations delivering mission-critical Earth data. Its integrated tech stack accelerates time-to-orbit and enhances remote sensing for clima

Sprinter Health

San Francisco

Sprinter Health is a mobile healthcare provider that combines technology with a full-stack medical practice to deliver proactive, home-based care, partnering with healthcare organizations to boost engagement in preventive care.

Metronome

San Francisco

Metronome provides a usage-based billing platform and helps companies accelerate product launches, offering a practical solution for faster product introductions.

Zamp

San Francisco

Zamp uses AI to automate routine tasks, enabling teams to move at the speed of thought and focus on strategy. Backed by Sequoia Capital, it partners with Fortune 500s and banks to streamline Finance and Operations with real-time, decision-r

Pump.co

San Francisco

Pump is a cloud cost-savings company using group buying and AI to reduce AWS compute spend for startups; Forbes calls it the 'Costco of Cloud compute,' with 250+ customers and India expansion to save up to 60% on AWS costs.

Column

San Francisco

It is a nationally chartered bank built to enable developers and builders to create new financial products, and is the only bank with this focus.

RemoFirst

San Francisco

The company is a global Employer of Record and compliance provider that onboards, pays, and manages employees and contractors for remote teams, offering same-day onboarding and best pricing, in 185+ countries.

LootRush

San Francisco

LootRush is a YC-backed startup that aims to democratize crypto gaming by removing technical barriers to entry and broadening access, founded in Y-Combinator's Summer 2021 cohort.

Everest Systems

Mountain View

Everest Systems develops AI-powered business software for mid-sized enterprises, backed by renowned investors and led by SAP veterans. With ~130 staff across Mountain View, Heidelberg, London, and Porto Alegre, it operates a subscription-ba

Vapi

San Francisco

Vapi provides a configurable platform to deploy voice agents. Aiming to make voice humanity’s default interface, it's grown to 400,000 developers in 20 months and raised $20M in Series A led by Bessemer Venture Partners, Canadian founders J

Liberate

Palo Alto

The company offers a comprehensive AI platform for carriers, agencies and brokers, designed to meet their needs with AI capabilities and defines its niche in providing AI-powered solutions.

Quilt

Redwood City

Quilt develops home climate systems designed to move humanity off fossil fuels, offering residential climate solutions and positioning itself as an innovator in sustainable home technology.

Planera

Pleasanton

A great project schedule is critical to construction project profitability. 70% of projects are over budget, primarily due to poor schedule planning. CPM Scheduling is hard, and tools have not evolved in decades, as many construction profe

Astro Mechanica

San Francisco

Astro Mechanica is a fast-growing aerospace startup aiming to reinvent supersonic aircraft. Describing itself as an engineering collective, it innovates on engines, airframes, and systems untouched for over 50 years, targeting advances from

Superblocks

Menlo Park

Superblocks is an internal app generation platform that powers mission-critical operations for global enterprises; backed by Kleiner Perkins, Spark Capital, Greenoaks, Meritech Capital, and founders of Workday, Box, and Okta, with clients l

Lycia Therapeutics

South San Francisco

Lycia is a Series B biotech company built on a platform developed by academic founder Professor Carolyn Bertozzi at Stanford, arising from Stanford research, with potential to deliver next-generation therapeutics for difficult-to-treat dise

TransCrypts

Fremont

TransCrypts provides a blockchain-based platform to empower individuals with ownership and secure access to their personal data, streamlining employment and income verification for individuals and organizations with a simple, user-friendly

Auricle

Mountain View

Auricle develops an implantable neurostimulation device to restore hearing for patients who no longer benefit from hearing aids but are not ready for cochlear implants, using a reversible, minimally invasive approach that preserves residual

Storylane

Santa Clara

Storylane enables marketing and sales teams to share product experiences with buyers, connecting them with these experiences to drive product-led growth.

Vivodyne

San Francisco

Vivodyne is a company dedicated to accelerating the discovery of cures for human diseases. Its mission frames the company's purpose.

Assembly HOA

San Francisco

Assembly HOA Management is a California-based HOA management firm that automates administrative tasks, enhances transparent communication, and provides online access to information, aiming to transform homeowner associations into turnkey co

Taro

Palo Alto

Taro, a YC-backed startup founded in 2022, reshapes software engineers' career navigation by supporting startup hiring with sourcing and feedback and operating joinTaro.com for opportunities. Its EdTech platform engages 100,000 engineers an

Medplum

San Francisco

Medplum is an open-source, API-first electronic health record (EHR) platform that increases access to and usefulness of medical data, used by major digital health and life sciences companies to build medical applications.

Upwind Security

San Francisco

Upwind provides cloud security solutions aimed at developers, security engineers, and DevOps professionals, with a focus on securing customers' cloud environments.

Distro

Palo Alto

Distro is a Y Combinator–backed startup delivering an AI Revenue Platform for sales reps in industrial distribution, modernizing software for counter staff and inside sales at industrial wholesale distributors, with strong traction and vent

Activepieces

San Francisco

Activepieces is an MIT-licensed, open-source no-code business automation platform that can be self-hosted on customers' servers, positioned as a self-hosted alternative to cloud tools like Zapier and aimed at making AI a native part of ente

Dart

San Francisco

Dart, founded in 2022 in San Francisco, positions itself as the only truly AI-native project management tool, with an AI-first, product-driven approach. With about 10 full-time staff (5 engineers) and revenue growth in 2025, it has strong f

Osmind

San Francisco

Osmind is a San Francisco-based public benefit corporation that brings together scientists, technologists, and psychiatrists to advance evidence-generating medicine for people with moderate to severe mental health conditions.

Levelpath

San Francisco

Levelpath is an AI-native procurement platform for managing indirect spend in global enterprises. Headquartered in San Francisco and backed by VC firms, it serves Fortune enterprises worldwide such as Ace Hardware, Amgen, and Western Union,

Broccoli

San Francisco

Broccoli is an AI company for home service businesses that integrates with Service Titan and other tools, aiming to democratize access to world-class customer service, sales, and marketing for every contractor.

Exa

San Francisco

Exa, a San Francisco-based startup, is building a next-generation AI search engine aimed at outperforming Google for power users, with an about 20-person team including alumni from Harvard, MIT, Apple, and Palantir, and a Series A from Ligh

Finni Health

San Francisco

Finni Health enables autism care providers to start, run, and grow their own practice with a dedicated platform, backed by General Catalyst, Greymatter, and Y Combinator, as the market expands with rising diagnoses and enabling legislation.

Lendtable

San Francisco

Lendtable is a venture-backed fintech that helps Americans save and invest while maximizing their paycheck and benefits, with a focus on improving retirement-related benefits for workers; backed by Y Combinator, Valor Equity Partners, and S

Layerup

San Francisco

Layerup builds AI Agents for critical industries, starting with financial services and insurance, backed by investors including Y Combinator, Pioneer Fund, and Founders Inc. It has built AI apps, robots, and drones and was invited by NASA f

Cobot

Santa Clara

A robotics company developing a future where robots are a trusted extension of everyday life; their robots work, adapt, and react around people.

Arcade

San Francisco

Arcade is an interactive demo platform that makes it easy for teams to create beautiful demos in minutes, removing creative and technical barriers to showcasing their product on websites, content, or social media.

Nash

San Francisco

Nash builds last-mile logistics infrastructure for the internet, aiming to capture a share of the last mile; founded 2021 by MIT alumni Mahmoud Ghulman and Aziz Alghunaim in San Francisco, backed by YC and a16z, serving Walmart, 7-Eleven, a

Quill

San Francisco

Quill provides a full-stack API and management platform for dashboards and reporting, positioning itself as a provider of tooling for dashboards and reports.

Atomic AI

South San Francisco

Atomic AI uses AI and structural biology to redesign molecules, with an R&D platform built on Science-cover research to target RNA structure and tackle undruggable diseases, guided by an interdisciplinary computational and experimental biol

Attain

San Francisco

Attain is a seed-stage startup that aggregates supplier inventory for convenience store owners, tackling fragmentation and antiquated procurement to cut inventory inefficiencies for over 150,000 stores. It offers price transparency, reliabi

Toku

San Francisco

Toku helps streamline customer payments and intelligently automate collections for businesses, focusing on simplifying payments and automating receivables to improve the payment experience and collection efficiency.

Atlas

San Francisco

Atlas Card is a San Francisco-based fintech delivering modern spend management and concierge services. Founded in 2022 with 25 employees, its founders are Patrick Mrozowski, Sid Parihar, and Kenan Pulak; the company lists Tom Blomfield as a

Aios Medical (YC W20/S21)

San Francisco

Delilah, a clinic under Fella & Delilah, accelerates uptake of weight-management medications for families and plans expansion into hormonal health, mental health, longevity, and primary care; it reports $50M ARR, 10k+ customers, cashflow-po

Highnote

San Francisco

Highnote is a product company redefining embedded finance for modern commerce, delivering embedded finance capabilities to leading brands and digital enterprises via a cloud-native platform, enabling the next generation where every payment

Bifrost AI

San Francisco

Bifrost is a company focused on accelerating AI development by leveraging limitless synthetic data to unlock superior AI capabilities.

Celestial AI

Santa Clara

Celestial AI is an AI infrastructure company pursuing a sustainable, AI-driven future, backed by an aggressive roadmap and a tier-one partner ecosystem. Its Photonic Fabric technology is foundational for scaling AI compute and reimagining d

Ketch

San Francisco

Ketch redefines responsible data use for the AI era, serving brands worldwide and enabling responsible data practices for AI-driven initiatives.

Diffuse Bio

San Carlos

Diffuse builds generative AI for protein design, with coverage from The New York Times and NBC News; it has produced the first crystal structures of AI-designed proteins and diffusion models for structure and sequence generation.

Forage

San Francisco

Forage builds payment technology to expand access to government benefits, helping SNAP EBT shoppers stretch grocery budgets and feed 42 million Americans. Backed by Nyca and PayPal Ventures, it aims to become a $1B+ business in a $100B+ mar

Gradient

San Francisco

The company accelerates AI transformation in the finance industry and has developed the AI Finance Reasoning Platform, the only platform used to power complex workflows in financial services institutions.

Voxel

San Francisco

Voxel provides a site intelligence platform that uses AI and computer vision to enhance workplace safety and operations, serving Fortune 500 customers across groceries, retail, manufacturing, and logistics, headquartered in San Francisco wi

Charge Robotics

Oakland

Charge Robotics builds robots to automate the most labor-intensive parts of solar construction, removing bottlenecks to enable faster deployment of solar energy. It helps construction companies meet rising solar demand by addressing labor l

Vectara

Palo Alto

Vectara develops an AI platform for enterprise AI assistants and agents, enabling developers to optimize behavior via plug-and-play APIs without altering underlying systems, while emphasizing accuracy, explainability, secure access, and res

Intrinsic

San Francisco

Intrinsic, Alphabet's robotics software and AI company, aims to make industrial robotics accessible to millions of businesses, entrepreneurs, and developers. It unites engineers, roboticists, designers, and technologists and is described as

Local Kitchens

San Francisco

Local Kitchens is a multi-brand restaurant concept that curates diverse cuisines through collaborations from beloved chefs, serving as a single destination for a range of dining experiences under One Spot, Every Flavor.

NewLimit

South San Francisco

NewLimit is a biotechnology company developing medicines to treat age-related diseases by reprogramming the epigenome to restore regenerative potential in aged and diseased cells. It uses functional genomics, pooled perturbation screens, an

Voltron Data

Mountain View

Voltron Data develops data access and in-memory computing tools to improve the existing data analytics ecosystem.

House Rx

San Francisco

House Rx is a technology-enabled service that helps clinics dispense specialty medications in a medically integrated way, leveraging pharmacist expertise and modern tech. It enables physician-pharmacist collaboration to improve outcomes, reduce costs, and enhance patient experience.