Top Tech Startups in California, US in 2027

Every enterprise wants to become AI-native, but very few know how to turn rapidly evolving AI capabilities into production systems that create measurable business value. That's where Tribe AI comes in. We are an AI-native services company that helps Fortune 500 companies and ambitious startups design, build, and deploy production-grade AI systems. Our teams work directly with clients to solve high-impact problems using LLMs, agentic workflows, RAG, multimodal AI, evaluations, and modern AI infrastructure not just prototypes or demos. Unlike traditional consulting firms, our engineers, architects, product leaders, and AI specialists embed alongside client teams to understand their business, design practical solutions, and deliver systems that operate reliably in production. We're proud partners of OpenAI and Anthropic, giving us early access to frontier models and close collaboration with the teams building the future of AI. At Tribe, you'll work on challenging AI problems across industries including healthcare, finance, manufacturing, cybersecurity, life sciences, and enterprise software. Every engagement is different, which means continuous learning, meaningful ownership, and the opportunity to shape how the world's largest companies adopt AI. If you're excited about solving difficult technical problems, working directly with customers, and shipping AI systems that matter, you'll fit right in.

At Edit on the Spot, we seamlessly integrate automated video editing into event tech workflows, offering a comprehensive solution that combines video capture, live-streaming services, AI-assisted editing tools, and cloud-based storage. Using Edit on the Spot technology, we developed Gradcut - a cloud-based software platform designed for universities, delivering branded video clips to graduates on the same day of their graduation.

A conference that brings together Selenium developers & enthusiasts from around the world to share ideas, socialize, and work together on advancing the present and future of Selenium.

harpoon enables anyone creating a software project to dynamically generate software infrastructure and deploy it to the cloud provider of their choice without writing any code in 10 minutes or less.

We develop cutting edge medical devices that leverage machine learning and artificial intelligence for healthcare.

Viaduct’s cloud platform derives actionable insights from connected vehicle data to power applications, such as predictive maintenance, driver identification, and driver safety scores. Deployed in the vehicle, Viaduct’s machine learning solutions intelligently compress and enhance vehicle data to allow the richest data to be transmitted to the cloud in the fewest bytes.

Data Theorem is a leading provider in modern application security. Its core mission is to analyze and secure any modern application anytime, anywhere.

The Cedars-Sinai Accelerator is transforming healthcare quality, efficiency, and care delivery by helping entrepreneurs bring their innovative technology products to market. This three-month program, based in Los Angeles, California, provides companies with $100,000 in funding, mentorship from more than 300 leading clinicians and executives, access to Cedars-Sinai, and exposure to a broad network of entrepreneurs and investors. Since 2015, the accelerator has helped dozens of companies transform healthcare delivery and patient care.

Founded by industry leaders and entrepreneurs who know there is a better way to design and build, Rize Modular was created to reimagine our living environments and address the massive housing shortage here in the US. State-of-the-art robotics and production technology, coupled with award-winning design, Rize has developed the first end-to-end volumetric building platform to deliver healthy, intelligent, clean, sustainable structures that are of superior quality and produce significantly less waste compared to the traditional building method. The efficiencies of the integrated approach results in a precision-based structure produced in a fraction of the time and at a lower cost.