Top California Generative AI Startups (98)

Mixbook is an award-winning design platform that gives people unrivaled creative freedom to tell their stories through beautiful, personalized photo goods. Since our start, we’ve helped more than 6 million people create one-of-a-kind books, cards, prints, and calendars, earning over 35,000+ 5-star reviews and becoming the #1 rated photo book service in the US. Our platform blends trend-forward design with a...

Eve Legal is pioneering the future of legal technology by focusing on AI-driven solutions that empower plaintiff-side law firms. With a robust platform designed for efficiency and effectiveness, Eve leverages artificial intelligence to streamline case analysis, enhance decision-making, and optimize client outcomes. Our mission centers on providing attorneys with the tools needed to stay competitive and navigate the legal landscape...

Hedra is an AI native platform for multimodal creation. The platform is built around their own cutting-edge proprietary video model, Character-3, which is the first multimodal model in production. Alongside Character-3, the platform also brings other leading foundation models into one ecosystem spanning generative images, video, and audio. Prosumer and enterprise users leverage Hedra to generate content ranging from viral...

Bellagent is an enterprise-level AI agent platform built to automate everyday business operations with zero-touch integrations that connect instantly to more than 1,300 applications. Launched in 2025 by Proactifi Inc., and headquartered in Chicago, the platform is built for practicality with industry-leading compliance and security standards, enabling organizations to deploy AI agents without friction from day one. Bellagent’s mission to...

Collectly is a fast-growing healthcare tech startup leading the charge in transforming the U.S. healthcare market through AI-driven innovation. In the U.S., millions of patients interact with healthcare providers daily, navigating a system that often struggles with inefficiencies, administrative burdens, and suboptimal financial experiences. At the forefront of the AI boom, Collectly is redefining revenue cycle management (RCM) by applying cutting-edge...

American medicine is the best in the world. But the American healthcare system is challenged by high administrative costs that burden patients, health systems, and insurance companies with unnecessary expenses. We are focused on addressing those challenges. We use GenAI to improve the most pressing financial pain points in the revenue cycle. We’re one of the first companies to deploy GenAI...

ClickMint pairs proprietary generative-AI diagnostics with senior CRO operators to uncover friction, launch precision tests, and unlock compounding gains—helping high-growth e-commerce brands scale faster without buying more traffic. Founded by the creator of one of the nation’s top-performing digital marketing firms—honored by Inc. as a Fastest-Growing Company for seven consecutive years and ranked among the Top 50 U.S. marketing agencies...

Founded in 2020 by George Sivulka and backed by Peter Thiel and Andreessen Horowitz, Hebbia powers investment decisions for BlackRock, KKR, Carlyle, Centerview, and 40% of the world’s largest asset managers. Our flagship product, Matrix, delivers industry-leading accuracy, speed, and transparency in AI-driven analysis. It is trusted to help manage over $15 trillion in assets globally. We deliver the intelligence that...

Fireworks.ai offers generative AI platform as a service. We optimize for rapid product iteration building on top of gen AI as well as minimizing cost to serve. https://fireworks.ai/careers

Unlike generic AI, Coworker can answer, plan, and execute tasks for you with full company context across 40+ enterprise apps — no custom coding required.

Meet the Al platform to Revolutionize Engineering. We started this company because manufacturing and engineering are overdue for a digital revolution. These fields are complex, and while agile, lean, and just-in-time methods have driven progress, AI now offers a transformative opportunity to reshape how work gets done. Foundation’s EGI platform is built to accelerate every stage of the product development cycle—from...

Lakera is the world’s leading real-time GenAI security company. Customers rely on the Lakera AI Security Platform for security that doesn’t slow down their AI applications. To accelerate secure adoption of AI, the company created Gandalf, an educational platform, where more than one million users have learned about AI security. Lakera uses AI to continuously evolve defenses, so customers can...

MojoTech is a 100% US-based software development company that integrates strategy, engineering, and design to create results-driven digital products and experiences. We've written the playbook for how to discover, define, design, and build tomorrow's innovations, empowering companies to unlock future market potential, maximize returns on innovation, and drive transformational change.

Our mission is to advance humanity's understanding of AI by examining the inner workings of advanced AI models (or “AI Interpretability”). As a research-driven product organization, we bridge the gap between theoretical science and practical applications of interpretability. We're building critical infrastructure that empowers developers to understand, edit, and debug AI models at scale, ensuring the creation of safer and more...

Galileo is the AI observability and evaluation platform that helps engineers ship reliable agents. With one line of code, Galileo provides instant insight into multi-agent behavior so teams can find & fix errors quickly. Galileo provides automated testing in the development lifecycle to prevent regressions. And Galileo is uniquely able to protect your brand and users with run-time guardrails, the only...

Warp began with the vision of reimagining one of the fundamental dev tools—the terminal—to make it more usable and powerful for all developers. As AI has advanced, Warp has evolved beyond its terminal roots into the platform for Agentic Development: a workbench for dispatching agents to code, deploy, and debug production software. With over half a million active developers and revenue...

DeepSky is a business insights and research agent designed to accelerate research and strengthen conviction. Our proprietary agent leverages first principles thinking, strong finance fundamentals, and premium data sources to analyze the implications of market events and other types of strategic questions.

Typeface is the generative AI application to supercharge personalized content creation for businesses. By uniting content velocity with brand personalization and control, any enterprise can now create exceptional, on-brand content faster and easier than ever before.

WitnessAI is building the guardrails that make AI safe, productive, and usable. Our platform allows enterprises to innovate and enjoy the power of generative AI, without losing control, privacy, or security. WitnessAI is a set of security microservices that can be deployed on premise in your environment, in a cloud sandbox, or your VPC, to ensure that your data and activity...

Anthropic is an AI safety and research company that’s working to build reliable, interpretable, and steerable AI systems. Our research interests span multiple areas including natural language, human feedback, scaling laws, reinforcement learning, code generation, and interpretability.