Top California Machine Learning Startups (464)

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...

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 We serve independent paint, hardware, and farm & feed retailers who've been stuck running their business on outdated point-of-sale systems and a patchwork of disconnected software, and we're built to help them modernize: better experiences for them, their...

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,.

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.

Deepgram is the leading voice AI platform for developers building speech-to-text (STT), text-to-speech (TTS) and full speech-to-speech (STS) offerings. 200,000+ developers build with Deepgram’s voice-native foundational models – accessed through APIs or as self-managed software – due to our unmatched accuracy, latency and pricing. Customers include software companies building voice products, co-sell partners working with large enterprises, and enterprises solving...

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...

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...

AiFi provides the most flexible AI platform that enables retailers to affordably deploy and scale autonomous shopping solutions across their businesses. Leveraging computer vision, AiFi adapts to existing store formats without the need for shelf sensors, and provides advanced tracking algorithms that can scale up to 10,000 square feet to support various shopper journeys such as an app, credit card,...

Accordance builds a frontier, multi-agent AI platform that empowers tax, audit and accounting teams to research, reason and draft authoritative work with citations. Founded by Stanford AI researchers and fintech founders, the SaaS product ingests unstructured financial materials, connects facts to primary authority, and provides verifiable, enterprise-grade assistance for CPAs and tax professionals while maintaining strong security controls.

Epoch AI is a multidisciplinary research institute investigating the trajectory of artificial intelligence. Its mission is to understand the driving forces behind AI's development and forecast its ramifications on the economy and society. The organization emphasizes making its research accessible through reports, models, and visualizations to ground discussions of AI on a solid empirical footing and foster a rigorous scientific...

Realm Labs is an AI security company focused on helping enterprises secure and monitor AI applications and data. It develops an AI-based authorization platform designed to prevent data leaks and enable secure generative AI usage with features like agent security and guardrails.

Craft illuminates the path to global supply chain resilience. We empower businesses to strengthen their supplier networks and supply chains with the industry's most trusted and comprehensive data fabric and advanced risk mitigation engine. Our easy-to-use platform provides 360-degree visibility to quickly explore and evaluate supplier networks, AI-driven insights to detect and mitigate disruptions, and collaborative tools to optimize supply...

Eventual is building a Data Warehouse from the ground up that is designed to tackle the challenges of working with traditional data engineering and analytics alongside modern ML/AI workloads. Eventual has raised over $2.5M from investors including YCombinator, Array VC, Caffeinated Capital and top Silicon Valley executives and founders in companies such as Meta, Lyft and Databricks.

Alif Semiconductor is the industry-leading supplier of the next-generation Ensemble family of microcontrollers and fusion processors. The Ensemble family scales from single core MCUs to a new class of multi-core devices, fusion processors, that blend up to two Cortex-M55 MCU cores, up to two Cortex-A32 microprocessor cores capable of running high-level operating systems, and up to two Ethos-U55 microNPUs for...

Flagright sets the modern standard for AI-native transaction monitoring. The platform enables financial institutions to centralize detection, investigation, and reporting of suspicious activity, streamlining regulatory workflows and strengthening financial crime controls. A high-performance, no-code scenario builder with sub-second API response times powers real-time monitoring, supported by tailored rules, dynamic risk profiling, and simulation tools that reduce false positives and improve...

RoboForce, an AI-Robotics company, is building a first-of-its-kind Robotic Workforce System to take on the most tedious, force-demanding, and dangerous work humans don't have to do

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Auxia is an Agentic Marketing Platform that combines advanced infrastructure with AI agents to orchestrate hyper-personalized customer journeys. It empowers enterprises to unlock hidden signals from first-party data, fueling intelligent growth models that automate complex data science and engineering tasks. By deploying AI agents, marketers can deliver dynamic, personalized content across critical customer surfaces like web, app, email, and SMS,...

Machinify is an AI start-up in the Healthcare space. Our software platform leverages the latest advances in machine learning, large language models, data analytics, and cloud processing to solve previously intractable problems in the healthcare industry impacting millions of lives.

Zesty develops cloud-optimization software for DevOps and FinOps teams. Its platform uses machine learning and automation to provide prescriptive insights into cloud resource utilization, then automatically rightsizes Kubernetes resources and adjusts infrastructure to real-time workload demand. The company aims to reduce infrastructure costs and waste while protecting application performance and service-level objectives, helping organizations achieve greater cloud operational excellence across...