Top Artificial Intelligence Startups in California, US

We're building the data platform to power safe and fair decisions. Checkr provides fast, accurate information to power informed decisions. Our innovative technology and robust data platform help customers assess risk and ensure safety and compliance to build trusted workplaces and communities. We’re a team that thrives on solving complex problems with innovative solutions that advance our mission. Come join us!

6sense is a B2B predictive intelligence engine for marketing and sales. Using its private network of billions of time-sensitive intent interactions, 6sense uncovers net-new prospects at every stage of the funnel and determines which existing prospects are in market to buy. 6sense predicts what products prospects will buy, how much they will buy, and when. 6sense is backed by Bain Capital Ventures, Battery Ventures, Venrock, and Salesforce and is based in San Francisco. 6sense.com

Labelbox is the leading data-centric AI platform for building intelligent applications. Teams looking to capitalize on the latest advances in generative AI and LLMs use the Labelbox platform to inject these systems with the right degree of human supervision and automation. Whether they are building AI products with custom or foundation models, or using AI to automate data tasks or find business insights, Labelbox enables teams to do so effectively and quickly. The platform is used by Fortune 500 enterprises such as Walmart, P&G, Genentech, and Adobe, and hundreds of leading AI teams. Labelbox is backed by leading investors including SoftBank, Andreessen Horowitz, B Capital, Gradient Ventures (Google's AI-focused fund), and Databricks Ventures.

AssemblyAI is a remote-first company building powerful AI models for developers, startups, and enterprises to transcribe and understand their audio data. Our mission is to make production-ready, state-of-the-art AI models accessible to developers and product teams at extremely large scale through simple APIs. Customers, including Spotify, Algolia, Dow Jones, Happy Scribe, BBC, The Wall Street Journal, and NBCUniversal, use our APIs to transcribe and understand millions of videos, podcasts, phone calls, and zoom meetings every day. Our APIs power innovative products like conversational intelligence platforms, meeting summarizers, content moderation, and automatic closed captioning. We're growing at breakneck speed, and recently announced our Series B round. We've raised $63M in total funding, backed by leading investors including Insight Partners, Accel, Y Combinator, Patrick and John Collision (Founders of Stripe), Nat Friedman (Former CEO of GitHub), and Daniel Gross (Entrepreneur & Investor in companies including GitHub, Uber & SpaceX). Our team is made up of problem solvers, innovators, and top AI researchers from companies like DeepMind, Google Brain, Meta AI, Amazon and Apple. They conduct cutting-edge AI research and develop novel algorithms and techniques to continually push the state-of-the-art in speech recognition and NLP. Join our world-class, remote team and help us build an iconic deep learning company!

KeepTruckin is a San Francisco-based company that serves more than one million drivers and over 100,000 businesses that power the physical economy by equipping them with the technology needed to improve the safety and efficiency of their operations. Shoaib Makani and his co-founders Ryan Johns and Obaid Khan founded the company in 2013 to serve the trucking industry, a workforce that is essential to the economy but underserved by technology. Today, KeepTruckin’s 400,000-strong network of connected vehicles, ranging from small trucking companies to Fortune 500 enterprises, is one of the largest in North America. The products that KeepTruckin builds deliver integrated value for a diverse range of industries, from construction and oil and gas to distribution and moving and storage. At every turn, KeepTruckin provides cutting-edge hardware and software that leverages the latest advancements in AI and computer vision to solve a broad range of problems for businesses with vehicles — spanning video-based driver safety, Electronic Logging Device (ELD) compliance, GPS tracking, dispatch, and fuel and maintenance. KeepTruckin’s series E round valued the company at $2.3 billion, and it currently employs more than 2,400 people worldwide.

C3.ai is a leading enterprise AI software provider for accelerating digital transformation. The proven C3 AI Suite provides the comprehensive services to build enterprise scale AI applications 40x to 100x faster than alternative approaches. The core of the C3 AI Suite is a revolutionary, extensible, model-driven abstraction layer that dramatically enhances data scientist and application developer productivity. The C3 AI Suite supports any value chain in any industry with pre-built, configurable, high-value AI applications for predictive maintenance, fraud detection, sensor network health, supply network optimization, energy management, anti-money laundering, and customer engagement. c3.ai

Textio has developed the world’s most advanced workplace language guidance, so you can see where social bias is hiding—and know exactly how to fix it. Now available for both recruiting and performance management!

Product.ai is building the verification layer for AI commerce. We are not a startup pitch. We are a profitable company that has been verifying commerce data at scale for over a decade. No venture capital. No board. 100% founder-owned. Product.ai operates more like a special forces team than a traditional company. Every team member is an Axiomatic Engineer — an autonomous operator who extracts their mission from the company strategy, not from a manager's task list. We do not hire for well-roundedness. We hire for spikes: the innate talents that produce non-linear output when amplified by the right systems.

Kodiak was founded in 2018 to redefine long-haul trucking using safe and reliable autonomous technology. Between growing e-commerce and a strong economy, demand for trucking is on the rise. The trucking industry faces major problems: a shortage of drivers, difficult working conditions, and extremely high turnover. According to the American Trucking Association, the industry faced a shortage of 51,000 commercial truck drivers at the end of 2017. Long-haul trucking is primed for autonomous technology. Highway driving is more structured and predictable than urban driving. This means there are fewer decisions for drivers to make and a better fit for autonomous vehicles. We believe that autonomous trucks will play a major role in filling the gap while improving safety, enhancing truck driver quality of life, increasing efficiency, reducing congestion and emissions and creating jobs across the economy.

Our mission is to reinvent the way people learn, starting with language. Learning a language can change a life by opening doors to new cultures, careers, and communities. Two billion people around the world are actively trying to learn a language, but the best way to learn (one-on-one tutoring) is hard to access at scale and hasn’t been meaningfully improved in decades. Speak is building a human-level, AI-powered tutor in your pocket: a conversation-first experience that lets learners actually speak, get instant feedback, and progress through carefully designed lessons. The result is a complete path from beginner to confident speaker across multiple languages. Speak first launched in South Korea in 2019, where Speak has now become the number one language learning app, and we now serve learners across many markets and 15+ languages. Speak is one of the world’s leading AI companies, with over $150m raised in venture investment from OpenAI, Accel, Founders Fund, Khosla Ventures, and more, with a distributed team across San Francisco, Seoul, Tokyo, Taipei, and Ljubljana.