Top Tech Startups in California, US in 2026

Keeper is an AI-native tax filing software, designed for people with complex taxes. Connect your bank to automatically uncover hidden tax breaks!

Partly is UK-based, with an early team in the US, and our core engineering team in Christchurch, New Zealand. Partly's mission is to connect the world's parts and we're doing that by building the first global platform for replacement parts, starting with auto parts. Our big vision is to accelerate the world towards a sustainable future where waste is eliminated and all replacement parts are universally searchable, accessible and available to all. We've more than tripled our team over the last 12 months and expect to double in size again over the coming 12 months. We're a global team spanning both Europe and Australasia. Founded by ex-Rocket Lab engineers, we utilise bleeding-edge technology to solve challenging but exciting problems that make a huge impact in a $1.9 trillion industry. We provide a scalable digital infrastructure solution to some of the world's largest businesses and the most exciting startups. Partly's solutions are integrated across hundreds of companies globally, providing the backbone for cataloguing and managing parts online. Blackbird Ventures (Canva, CultureAmp etc.) led both our Pre-Seed and Seed rounds, alongside I2BF (NYC), Hillfarrance, Icehouse, Peter Beck (Rocket Lab), Akshay Kothari (Notion Co-Founder) and Dylan Field (Figma Co-Founder). We're continuing to build a world-class team and ensuring Partly is a place where people can do the best work of their lives. We're proud of the culture we've built at Partly, and our values are lived throughout every experience.

Imply is building a next generation data analytics platform based off of the Druid open source project

Anduril brings Silicon Valley talent and funding to the defense sector, assembling a diverse team of experts in artificial intelligence, computer vision, sensor fusion, optics, and data analysis - including senior engineers from Oculus VR, Palantir, General Atomics, SpaceX, Tesla, and Google. We believe that if we build practical solutions using the latest technology, we can deliver far better outcomes at a dramatically lower cost.

Glacier’s goal of ending waste begins with the recycling industry. We’re launching an AI-based sorting robot that is significantly cheaper and more portable than the competition, without sacrificing accuracy. Using our robot, recycling facilities can process America’s trash more cleanly and efficiently, meaning more manufacturers can use recycled commodities as a viable alternative to our precious natural resources.

Fig Tech’s mission is to unlock the potential of deep subprime consumers by providing paths to financial stability. Fig uses proprietary data to develop risk models and operations technology to reduce the cost of providing financial services. Our core values as we go about this mission are: Mission Everything, Follow Through, Integrity over Optics, Operational Excellence, Educate and Empower, and Make Things Better. We're the first fintech to be both B Corp certified and a US Treasury recognized Community Development Financial Institution (CDFI), which means we serve majority lower income communities in the US.

We are providing a complete “business in a box” solution for owner-operators and small trucking carriers at a much lower cost using software engineering, data science and world class operations processes. Our mission is simple — to put more money in the hands of truck drivers and reduce their headaches. CloudTrucks will improve the three core metrics that every truck driver cares about — revenue, cash-flow and costs. We focus on the owner-operator and small trucking companies because they are the lifeblood of the industry and facing the largest pressures with fast rising insurance rates, predatory factoring options and a quickly changing landscape. It’s more important than ever to have someone in their corner whose incentives are 100% aligned with theirs.

Opal Security is intelligent access management that empowers enterprises to move fast while staying secure. Our mission is to bring clarity, control, and confidence to complex enterprise environments, helping teams govern access without slowing down innovation.

We're Mochi Health, a pioneering force in obesity medicine dedicated to building personalized, clinically-backed weight care solutions. We're on a mission to empower patients with one-on-one virtual care and proven pharmaceutical treatments. We recognize that every body is unique, and believe weight loss plans should be, too. With over 100 million individuals struggling with obesity and 15 million already using GLP-1 prescriptions, the need for specialized guidance is at an all-time high. We help patients navigate their treatments and achieve lasting success by connecting them with board-certified providers, dietitians, and access to our support team around the clock. Our best-in-class telehealth platform is designed to make care accessible to patients whenever and wherever they need it. At Mochi Health, we believe that our success is driven by the people we hire. Join us in shaping the future of obesity medicine and transforming the lives of millions of patients.

Frontier Ventures is a venture capital fund based in Silicon Valley investing in early stage AI companies with network effects in the United States. The fund was founded and is run by technology entrepreneurs. Frontier Ventures is backed by technology entrepreneurs, family offices, and financial investors as limited partners. We have built AI-based tools to automate our business processes.