Top California Software Startups (3,947)

Monte Carlo is the agent trust platform that unifies data and agent observability to monitor, troubleshoot, and improve production AI systems. As enterprises prepare to deploy thousands of agents across business-critical use cases, Monte Carlo provides the reliability infrastructure to support them along this AI transformation, from human-guided agents to fully autonomous operations. Founded 2019. Backed by leading investors. Trusted...

Cie is a venture studio that serves as an innovation lab and accelerator for bold entrepreneurs who want to transform disruptive ideas into thriving ventures. Cie blends Silicon Valley DNA with the business maturity of serial entrepreneurs, seasoned venture capitalists, and Fortune 500 executives. Combined with the team’s strategic and operational expertise in technology, product development, brand building, and customer acquisition,...

Vitalize is an AI-powered platform that unifies staffing, scheduling, flow, and capacity for health systems, designed to optimize operations and deliver ROI.

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...

Hex is changing the way people work with data. Our platform makes analytics workflows more powerful, collaborative, and shareable. Hex solves key pain points with today's data and analytics tooling, and is loved by thousands of users all over the world for the beautiful UI, new superpowers, and boundless flexibility. We are a tight-knit crew of engineers, designers, and data aficionados....

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...

Headquartered in sunny Los Angeles, GrayMatter Robotics is an AI robotics company that builds the factories of the future today, empowering people, creating safer workplaces, and shaping a more prosperous society. We build next-generation factories that transcend human constraints, driving exponential productivity and sustainable economic growth. Our technology brings together robotics, Physical AI, and human ingenuity to create intelligent systems...

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...

Rundoo is the AI-native, all-in-one ERP for independent supply stores: point of sale, inventory, payments, and the general ledger in one system. We serve independent paint, hardware, and farm & feed retailers who've been stuck running their business on outdated point-of-sale systems and a patchwork of disconnected software, and we're built to help them modernize: better experiences for them, their...

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...

At Revel, we are revolutionizing the way the world’s most critical hardware is controlled—across aerospace, automotive, energy, and manufacturing sectors. Our next-generation software stack combines an intuitive command/control interface, a specialized programming language tailored for hardware control, and a high-performance runtime environment. We empower engineers to build, test, and deploy critical systems rapidly, reliably, and safely.

Blee is an AI-first marketing compliance platform that allows companies to review, approve, and manage marketing content. It integrates into content creation workflows to provide instant feedback, faster approvals, and scalable recordkeeping, giving teams complete control and oversight over their content across various regulated industries such as fintech and life sciences.

Outset invented a better way to do research: AI-powered user interviews. We created this new category of research technology and now it's growing wildly. Global brands like Hubspot, Microsoft, Uber and Nestle use Outset to achieve deeper, qualitative insights about their users at unprecedented speed and scale. The research industry is massive (>$140B and growing) and ripe for disruption. Incumbents are outdated,...

Designed for the most ambitious go-to-market teams, it gives companies the power to understand every customer, automate at scale, and build their go-to-market motion exactly as they need.

Treeswift builds physical AI for labor. We use robotics and machine learning to help the people who do real work get more done, starting with the crews who keep the electric grid running,.

Red 6 is an innovative Augmented Reality (AR) technology startup leading the way in synthetic air combat training. Our primary technology, supporting our ATARS product, enables pilots to simulate the cognitive challenges of flying while accessing realistic, scalable training in dynamic outdoor environments

Our mission is to remove inefficiency from the foundation of AI. By combining new research in information theory, probabilistic modeling, and distributed systems, we’re creating self-optimizing data infrastructure that continuously improves how information is represented and used by intelligent systems.

Million Dollar Baby Co. started in 1990 and is proudly family-owned and operated in Los Angeles. Since then, MDB has grown to 7 distinct brands of children’s furnishings ranging in style, aesthetic, and price, while carrying some of the industry’s most eco-conscious and award-winning designs. We can be found in retailers like Target and Amazon, and specialty retailers like Pottery...

Parsec Automation, LLC (Parsec) is a trailblazing creator and provider of manufacturing operations management software. Consistently recognized by organizations like Gartner and IDC and a winner of numerous awards, including the Data Breakthrough Awards, American Business, and Best in Biz, Parsec exemplifies leadership in the dynamic, fast-paced manufacturing sector. With global manufacturers leveraging its innovative TrakSYS™ platform to tackle even the most complex manufacturing challenges, Parsec’s...

Taking days or weeks to answer questions like these isn’t the exception, it’s how finance works today. Getting to an answer often means digging across finance, data, engineering, and multiple business systems. We think it should feel as easy as searching Google. That’s what Quanta is building, with a fundamentally different approach than layering AI on top of existing financial...