Top California Artificial Intelligence Companies (2,000)

Legora is the agentic operating system for legal work, supporting lawyers in research, review, and drafting across complex matters. It is used by more than 130,000 legal professionals at more than 2,000 leading law firms and in-house legal teams across over 80 markets.

Build what’s next — with tech that matters PwC provides professional services across Audit and Assurance, Advisory and Tax — powered by a global network of over 370,000 people in 149 countries. You may know us for our business expertise, but technology is core to how we help clients move faster, build trust and deliver meaningful outcomes. As a technologist, you’ll work...

GRAIL is a healthcare company whose mission is to detect cancer early, when it can be cured. GRAIL is using the power of high-intensity sequencing, population-scale clinical studies, and state-of-the-art computer science and data science to enhance the scientific understanding of cancer biology, and to develop and commercialize pioneering products.

In 1939, Bill Hewlett and Dave Packard, college friends turned business partners, started the original Silicon Valley startup in the space of a rented Palo Alto garage. Starting with audio oscillators, the friends built the foundation for a company that would grow to become a global leader in enterprise technology. More than 75 years later, our success is exemplified through...

Datadog (NASDAQ: DDOG) is a global SaaS business, delivering a rare combination of growth and profitability. We are on a mission to break down silos and solve complexity in the cloud age by enabling digital transformation, cloud migration, and infrastructure monitoring of our customers' entire technology stacks. Built by engineers, for engineers, Datadog is used by organizations of all sizes...

Carbon Robotics is the leader in physical AI for agriculture, helping farmers become more profitable and sustainable. Its flagship product, the LaserWeeder™, is the world’s leading commercial laser weeding system with hundreds of units operated by farmers in 15 countries worldwide. LaserWeeder combines computer vision, AI, robotics, and high-powered lasers to identify weeds and destroy them with sub-millimeter precision—no herbicides, hand...

Runpod is pioneering the future of AI and machine learning, offering cutting-edge cloud infrastructure for full-stack AI applications. Founded in 2022, we are a rapidly growing, well-funded company with a remote-first organization spread globally. Our mission is to empower innovators and enterprises to unlock AI's true potential, driving technology and transforming industries. Join us as we shape the future of...

HRL Laboratories, an IBM company, pioneers the next frontiers of physical and information science. Delivering transformative technologies in automotive, aerospace and defense, HRL advances the critical missions of its customers. As a private company owned by IBM, HRL is a source of innovations that advance the state of the art in profound and far-reaching ways.

Liftoff is a leading AI-powered performance marketing platform for the mobile app economy. Our end-to-end technology stack helps app marketers acquire and retain high-value users, while enabling publishers to maximize revenue across programmatic and direct demand. Liftoff’s solutions, including Accelerate, Direct, Monetize, Intelligence, and Vungle Exchange, support over 6,600 mobile businesses across 74 countries in sectors such as gaming, social, finance,...

Riot’s (NASDAQ: RIOT) vision is to be the world’s most trusted platform for powering and building digital infrastructure. Riot’s mission is to empower the future of digital infrastructure by positively impacting the sectors, networks, and communities that we touch. We believe that the combination of an innovative spirit and strong community partnership allows us to achieve best-in-class execution and create successful...

Superhuman (formerly Grammarly) is the AI productivity platform on a mission to unlock the superhuman potential in everyone. The Superhuman suite of apps and agents brings AI wherever people work, integrating with over 1 million applications and websites. The company’s products include Grammarly’s writing assistance, Docs’ connected surface for teams, Mail’s inbox management, and Go, the proactive AI assistant that...

Optum, part of the UnitedHealth Group family of businesses, is a global organization that delivers care, aided by technology to help millions of people live healthier lives. The work you do with our team will directly improve health outcomes by connecting people with the care, pharmacy benefits, data and resources they need to feel their best. Here, you will find...

We are a global investment research and financial data company with 40-plus offices across North America, Europe, Australia, and Asia. Our products and services are used daily by individual investors, financial advisors, asset managers, retirement plan providers, and institutional investors. We provide data, research, and analysis across managed investment products, publicly listed companies, private capital markets, debt securities, and real-time...

We contribute to human progress by empowering people to express themselves, live in the moment, learn about the world, and have fun together.

EliseAI builds vertical AI agents for housing and healthcare — sectors that together make up nearly 40% of household spending. These agents automate high-volume workflows like leasing, maintenance, renewals, and patient intake, helping organizations cut costs, improve efficiency, and deliver better experiences. How does it work? EliseAI integrates directly into operational workflows: Housing: Manages leasing, maintenance, renewals, billing, and resident communication. Healthcare: Handles intake,...

Build the expertise the rest of the industry will follow. Fieldguide is establishing a new state of trust for global commerce and capital markets by automating and streamlining the work of assurance and audit practitioners. We build agentic software for the people who enable trust between businesses. This is where deep professional expertise meets cutting-edge AI. Our team is reimagining how the...

GC AI is the leading legal AI platform built specifically for in-house teams to solve the high-precision workflows they face every day. With powerful features like Easy Prompt™, Exact Quote™ citations, and native Microsoft Word integration, GC AI enables legal professionals to be strategic business partners through faster and more accurate drafting, reviewing, researching, and redlining. Purpose-built for sensitive, high-stakes...

GumGum is The Mindset Company™ transforming advertising. We deliver results by matching brands with people in the right mindset, in the moments that matter. Powered by the Mindset Graph™, our AI-driven data engine processes billions of real-time contextual, creative, environmental, and historical signals to match every ad with the most receptive audience. The result is advertising that drives meaningful outcomes for...

Space was once the quietest place in the universe. Now, it's crowded, contested, and confrontational.  We are True Anomaly: the only defense company focused exclusively on space defense. Founded in 2022 by ex-U.S. Space Force members, True Anomaly designs and builds advanced systems for space superiority: agile and powerful spacecraft platforms, mission software engineered for unmatched command and control, and payloads...

Metropolis Technologies, Inc. is an artificial intelligence company whose computer vision platform enables checkout-free payment experiences for the real world. Its proprietary AI-driven technology reaches more than 50 million customers while reducing costs, increasing transparency and capturing additional revenue for real estate partners. Following its take-private acquisition of SP+, Metropolis is now the largest parking network in North America with...