Top Tech Startups in California, US in 2026

UpKeep empowers hard-working technicians to be more productive through the adoption of cloud-based, mobile-first technology. Our SaaS solution is modernizing the way businesses manage and repair their facilities and equipment. Customers love our application because it gives them the ability to manage projects and work orders on-the-go. We also provide advanced reporting tools and IoT devices which enable managers to make data-driven decisions that save their businesses time and money. The first version of UpKeep was developed in 2014 by our Founder & CEO, Ryan Chan, while living in his parent's garage. He was frustrated with the outdated desktop software being used in the manufacturing plant where he worked— so he quit that job, leaned to code, and focused all of his energy on creating UpKeep. Today, we’re a Series B startup that's raised $50M in venture capital and recently surpassed 100 team members. We proudly serve important industries like manufacturing, energy, agriculture, healthcare, hospitality, transportation, public works, and building management. We have become the top-rated Computerized Maintenance Management System (CMMS) and Enterprise Asset Management (EAM) solution by constantly innovating and always putting our customers first. We believe people are our greatest asset. We strive to promote diversity, equity, and inclusion in everything we do. Fostering a welcoming and supportive work culture is major focus— which is why we've been named a "Best Place to Work" several years in a row. UpKeep has proudly taken the hard work out of 10 million work orders, and we're just getting started! Visit our website to learn more: upkeep.com

Metropolis develops advanced computer vision and machine learning technology that make mobile commerce remarkable. Our platform is already deployed in hundreds of mobility facilities and industries with billions in opportunity. We’re building the digital pipes through which the future of mobile commerce will move.

Cher® is revolutionizing real estate by empowering Realtors and homebuyers through innovation, education, and cutting-edge tools. As the first-to-market leader in co-ownership and gamified homebuyer education, we’re transforming the industry with engaging platforms that reward Realtors and homebuyers for progress and achievement. For Realtors, Cher® offers warm leads, personalized marketing resources, and opportunities to grow their business while earning rewards through our unique gamification system. For homebuyers, we simplify the path to homeownership with tailored courses, expert guidance, and co-ownership solutions, making real estate more accessible and exciting. At Cher®, we blend technology, education, and collaboration to create opportunities for success, rewarding milestones along the way. Join us in transforming the real estate experience for Realtors, homebuyers, and communities alike.

Today Sudowrite is an AI assistant used by novelists, screenwriters, essayists, and more. It helps writers get unstuck and suggests language, character backstories, and plot points, all while following the tone and narrative arc of the manuscript. Tomorrow, Sudowrite will be the writer's most-trusted collaborator, always available to brainstorm and co-write their best possible story. In ten years, we imagine a suite of AI-powered tools to augment and accelerate human creativity. We believe all creative work will eventually be a collaboration between human and AI. That said, Sudowrite will be our focus for quite some time.

Dealpath is the leading cloud-based deal management platform for real estate investment and development teams. Founded in 2014, Dealpath is backed by top-tier VC and strategic investors including Blackstone, JLL, 8VC, WTI, GreenSoil Investments, LeFrak, Goldcrest Capital, Milstein, and Bechtel.

Paragon is an Integration Infrastructure Platform for SaaS apps - we enable companies to build products that integrate with the SaaS ecosystem. With Paragon, software companies can integrate with hundreds of different SaaS apps in minutes while providing their customers with a seamless, unified integration experience. Our vision is to build the connecting layer for all software that enables every application in the world to work together seamlessly. In the last few years, we've grown by over 10x and now work with over 200 customers around the world. We've raised over $16M from world-class investors like Y Combinator, Inspired Capital, Global Founders Capital, Soma Capital, and Village Global, and have been featured in Techcrunch and Forbes.

At Paystand, we’re not just another fintech company—we’re trailblazers in decentralized finance (DeFi), transforming how businesses manage their finances. With thriving hubs in Santa Cruz, San Francisco, Austin, Minneapolis, Mexico City, Hermosillo, and Guadalajara, we’re leading a global revolution in financial systems. Recognized on the Inc. 5000 list for five consecutive years, we’re among the fastest-growing companies reshaping the future of finance. Our Expanding Ecosystem: Paystand isn’t just a company—it’s a growing global network. With the strategic acquisitions of Teampay, a leader in spend management, and Yaydoo, a top AR and AP platform in Latin America, we’re building an expansive ecosystem designed to revolutionize financial operations and fuel business growth worldwide.

We believe learning differences are parallel ways of thinking that should be celebrated. Our mission is to provide students with the resources and encouragement to succeed in the classroom and beyond. To us, this means helping them build confidence in their unique strengths and create strategies to work around their weaknesses.

Clientell is an AI-powered Salesforce automation platform built for RevOps teams, Salesforce Admins, and CRM Managers at mid-market companies. The platform lets users execute complex, multi-step Salesforce operations through plain English commands, with a human approval gate before anything runs. No scripts. No tickets. No waiting on a developer. Salesforce teams at companies with 800 to 3,000 employees use Clientell to automate CRM workflows, reduce manual admin overhead, and move faster on data operations that typically take days. What Clientell does: Translates natural language into validated Salesforce actions across Objects, Flows, and Records Executes bulk operations, field updates, and data migrations without code Surfaces CRM intelligence so RevOps teams can make accurate, data-backed decisions Connects directly to Salesforce orgs with enterprise-grade security and audit trails Who works here: Clientell is built by a team obsessed with removing the complexity that slows Salesforce teams down. We hire Salesforce engineers, AI/ML engineers, product managers with CRM domain expertise, and GTM operators who understand the mid-market RevOps stack.