Top Tech Startups in California, US in 2026

MongoDB is the leading modern, general purpose database platform, designed to unleash the power of software and data for developers and the applications they build. Headquartered in New York, MongoDB has more than 15,000 customers over 100 countries. The MongoDB database platform has been downloaded over 60 million times and there have been more than one million MongoDB University registrations.

Just Appraised is modernizing local government processes related to real estate and property taxes. Our cutting-edge, AI-powered software, which leverages Natural Language Processing (NLP), replaces manual data entry to eliminate delays, backlogs, and errors. With hundreds of government entities across the United States relying on us, your work will directly help drive essential revenues and provide critical services to society.

Zipline was founded to create the first logistics system that serves all humans equally. We design, manufacture and operate the world’s largest instant logistics and delivery system that is used by businesses, governments and consumers. Zipline is transforming the way goods move, from powering Rwanda’s national blood delivery network and Ghana’s COVID-19 vaccine distribution, to providing on-demand home delivery for e-commerce, to enabling healthcare providers to bring care directly to U.S. homes. The technology is complex, and includes autonomous, electric drones, but the idea is simple: a teleportation service that delivers what you need, when you need it. By transitioning to clean, electric, instant logistics, we can decarbonize delivery, decrease road congestion, and reduce fossil fuel consumption and air pollution, while providing equitable access for billions of people. Zipline operates on three continents (North America, Africa and Asia) and in seven countries - Rwanda, Ghana, the U.S., Nigeria, Japan, Kenya and Côte D’Ivoire. Zipline has made more than 540,000 deliveries to real customers, and currently completes one every 90 seconds. Zipline has flown 40 million autonomous commercial miles, delivered almost 5 million products (including more than 8 million vaccine doses). Zipline has two delivery platforms - a long-range system, Platform 1, and its next-generation home delivery system, Platform 2. Our drones are what people see, but they are only a small percentage of what we do. Behind each delivery is a complex network of airspace deconfliction tools, inventory management, fulfillment software, warehousing, performance management, cold chain storage, and more. Zipline’s instant logistics system is a trusted partner for businesses, governments and consumers, and currently supports the medical, health and retail sectors, delivering blood, vaccines, COVID supplies, prescriptions, e-commerce items, products that support human and animal health, and food.

LogicMonitor®’s SaaS-based observability and IT operations data collaboration platform helps ITOps, developers, MSPs and business leaders gain visibility into and predictability across the technologies that modern organizations depend on to deliver extraordinary employee and customer experiences. LogicMonitor seamlessly monitors everything from networks to applications to the cloud, empowering companies to focus less on troubleshooting and more on innovation. For more information, visit logicmonitor.com. Great Place to Work Certified, 2022 Best Places to Work, Built in Austin 2022 Company with the Best Benefits, Built in Austin 2022

At AngelList, we fundamentally believe in startups. We’re building the definitive platform for startups — where they raise money (angellist.com), build their team (wellfound.com/recruit/overview), and launch their products (producthunt.com).

Most things these days are instant and on-demand, except the money you're working hardest for. At EarnIn, we’re reimagining the way money moves to empower every person’s potential. We believe your hard-earned pay should flow more freely to give you more options, wherever life takes you. EarnIn is an app that lets you access your earned wages when you need them, not just on your scheduled payday. With EarnIn’s Cash Out2 feature, you can get up to $150/day, with a max of $1,000 per pay period — no mandatory fees, no interest, and no credit check. (Cash limits vary by user eligibility.) Transfers usually take 1–2 business days. Other tools like Early Pay3 let you get your paycheck up to two days early and Balance Shield4 can send alerts when your balance is low. The EarnIn app can help you make the most of your money, stay on track, and build progress day-by-day. We’re fortunate to have an incredibly experienced leadership team, combined with world-class funding partners. And we're excited to continue to bring world-class talent onboard to help shape the next chapter of our growth journey.

Doximity was founded in 2011 by the pioneers of mobile health apps to connect healthcare professionals and make them more productive. Joining Doximity means being part of an incredibly talented and humble team. We work on amazing products that over one million medical professionals, including over 70% of all U.S. doctors and 45% of all NPs and physician assistants, use to make their busy lives a little easier. Here at Doximity we absolutely love creating technology that has a real, meaningful impact on people’s lives.

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.

LILT is a language translation services and technology company. We're building the next generation of localization, making it possible for every organization to communicate with their customers in the language of their choice through LILT's high-quality, scalable, and affordable translation services. We recruit the world's best human translators and equip them with our software, allowing them to translate better and faster than ever. By combining human expertise and machine efficiency in a complete enterprise localization solution, we can deliver technology-enabled translation services to our customers. Lilt is backed by some of the world's leading investors including Sequoia Capital, Intel Capital, and Redpoint. Our customers include some of the largest Fortune 500 companies in the world who rely on Lilt every day to provide more personal customer experiences in 300+ languages. Our team is headquartered in the Bay Area with additional hubs in Indianapolis, Washington DC, Berlin, Dublin, and the UK.

Manychat is a Meta Official Business Partner, backed by top investors, including Bessemer Venture Partners, and one of America's Best Startup Employers. With 110+ teammates across three global offices — New York, Barcelona, and Yerevan — Manychat helps more than one million businesses worldwide interact with billions of customers in real-time at scale. No matter the use case — generating leads, increasing engagement, providing 24/7 customer support, accepting payments, and beyond — Manychat helps businesses improve their ROI and grow faster.