Top California Software Startups (3,929)

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...

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...

SentiLink is the leading fraud intelligence company, providing financial institutions and fintechs with purpose-built solutions for identity verification and fraud prevention. Our products detect synthetic fraud, identity theft, and hard-to-detect first-party fraud in real time — helping partners stop losses before they happen while approving more legitimate customers. Founded in 2017 by Naftali Harris and Max Blumenfeld, creators of the risk...

MFour turns consumer behavior into a competitive advantage. We operate the largest opt-in, first-party consumer panel in the U.S., tracking 4B+ monthly signals across location, apps, web, receipts, and AI conversations. Our platform, powered by DANI™, delivers instant insights to the world's biggest brands, from Google to Walmart to Disney. We're building the future of market research, and we're just...

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...

Compa is a venture-backed SaaS startup revolutionizing the future of compensation. In a dynamic job market with hiring challenges, accountability, and the rise of AI, companies need the best data to stay ahead of industry changes, competition, and costs. Compa has developed the premier real-time compensation data platform, delivering top-tier compensation intelligence to leading enterprise teams. Compa is a compensation intelligence company...

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,...

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...

Sortly is the simplest inventory platform for business and teams to stay on top of their stuff. Our visual system enables business to easily track what they have, where it is, and who has it. Anytime, anywhere, on any desktop, tablet or mobile device. Sortly is trusted by tens of 1000’s of small businesses and teams at large enterprises including HP, Honeywell,...

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...

Philo is a streaming television service that's reimagining the TV experience for the modern viewer. Founded by a group of technology and product enthusiasts, we set out to build the future of television by combining the best of modern technology with the most compelling medium ever invented—delivering the TV experience we've always wanted for ourselves. At our core, Philo provides...

Traditional firms rely on interviews, retroactive documentation, and billable hours. Onshore applies AI at the point of substantiation, providing documentation tied directly to source data and pairing it with expert review. The result is defensible, audit-ready work delivered in weeks, not quarters. We help companies claim R&D Tax Credits, 179D Deductions, and Cost Segregation with proof, not process. 500+ companies have trusted Onshore...

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...

As the trusted choice for digital agencies, SaaS platforms, and web professionals, Duda powers over 1 million websites worldwide. Our platform offers a comprehensive suite of tools that enable users to efficiently create pixel-perfect, feature-rich websites at scale.

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.

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

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,.

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...

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.

Opto Investments (“Opto”) are engineering the future of private markets, offering the solution for wealth managers to efficiently build and manage differentiated private investment programs. Opto’s end-to-end technology solution dramatically streamlines building, fundraising for, and managing a bespoke private markets fund or program, allowing independent investment advisors, family offices, and private banks to scale their offerings without scaling their team. Founded by...