Top Tech Startups in California, US in 2026

OneShop is building an operating system for reselling online, designed for small sellers. For $45/mo we make it easier to run your reselling business, whether you’re selling on one site or half a dozen. We do this by arming you with tools for your reselling workflow that simplify, standardize, and automate the seller experience across sites and off-platform.

Every business that sells something a person has to install, use, or repair already has the video, cannot search it, and has customers asking about it anyway. We built the thing that finds the answer. Businesses pay us to turn how-to video into an expert on their own channels that answers their customers in their own voice.

Our goal at P-1 AI is to develop an artificial general engineering intelligence—and eventually superintelligence—that can help the human species design physical systems more efficiently and at unprecedented levels of complexity. Going beyond existing foundation models, our autonomous AI agent learns from synthetic training data and real-world feedback and reasons over an internal multi-physics representation of a product design that encompasses both geometry and function. We are a world-class team of AI researchers, engineers, and top industry executives backed by some of the best investors in Silicon Valley and beyond.

MOLTEN is a cloud platform that streamlines core operations of media and entertainment enterprises. MOLTEN digitizes and transforms rights, content, and licensing operations across enterprises, empowering teams with real-time insight and automation tools to do more, accelerating deal-making and content monetization worldwide. MOLTEN offers multiple integrated cloud-based services to power back-end operations for media and entertainment enterprises, which include content rights, storage, delivery and licensing management.

We aggregate federal and state geospatial datasets and regulatory documents and build AI systems to give project developers and contractors automated spatial intelligence from site selection to permitting to project development across carbon sequestration, geothermal, hydrogen, and minerals projects.

Strada is a conversational AI platform for insurance distributors—brokers, agencies, and MGAs. Our AI agents are revolutionizing communication across the industry, handling renewals, lead qualification, and sales outreach over the phone. Based in San Francisco, Strada is backed by Y Combinator, top VCs and operators from Deel, PagerDuty, Sardine and many more.

Archesys provides a wide range of technical services and has been doing so for over 20 years, making a significant impact in the areas of organization, culture, and technology in both the private and public sectors. From digital modernization to process management, our team is the go-to resource for various government agencies looking to improve or overhaul their operations.

Triumph makes mobile gaming more thrilling by letting players wager - and win - real money, play in mass multiplayer games, and compete in social tournaments. Our first product, Arcade, is the top app in its category and our newest product, Rips - a collectibles app - is quickly becoming our fastest growing product. We're hyper-scaling our team so that we can continuing to innovate and grow to multi-platform, international, and beyond. Triumph is backed by some of the top consumer VCs including Goodwater Capital, General Catalyst, and DraftKings Drive Fund. Try Arcade - apps.apple.com/us/app/triumph-play-for-cash/id1608987929 Try Rips - apps.apple.com/us/app/rips-by-triumph/id6751921248

At StackGen, we empower organizations to modernize and streamline their infrastructure. Our platform transforms existing environments into secure, standardized Infrastructure as Code (IaC), enabling seamless deployment to any cloud. We believe infrastructure should work for you not the other way around. Our mission is to eliminate operational inefficiencies by leveraging intelligent cloud infrastructure that learns, adapts, and evolves independently. With StackGen, teams can move faster, reduce risk, and deploy with confidence.