Top California Software Startups (3,420)

InStride delivers strategic education and skilling solutions designed to evolve with the pace of change, helping companies find new talent, retain valuable employees, build skills, and fill critical positions.

As the trusted choice for digital agencies, SaaS platforms, and web professionals, Duda powers over 1 million websites worldwide. Our platform offers a comprehensive suite of tools that enable users to efficiently create pixel-perfect, feature-rich websites at scale.

Sonatus is a global vehicle software company enabling AI-powered, software-defined vehicles through its platform, which is deployed in over 5 million cars, helping automakers continuously improve cost, performance, reliability, and user experience.

Red 6 is an innovative Augmented Reality (AR) technology startup leading the way in synthetic air combat training. Our primary technology, supporting our ATARS product, enables pilots to simulate the cognitive challenges of flying while accessing realistic, scalable training in dynamic outdoor environments

Academia.edu is the world’s leading platform for researchers and scholars to share their work, discover research and connect with fellow academics globally. Our bold vision: to democratize and accelerate the world's research, enhancing the speed of scientific discovery and technological progress for the benefit of everyone. We imagine a world where accessing academic papers is effortless, keeping track of cutting-edge...

Headquartered in sunny Los Angeles, GrayMatter Robotics is an AI robotics company that builds the factories of the future today, empowering people, creating safer workplaces, and shaping a more prosperous society. We build next-generation factories that transcend human constraints, driving exponential productivity and sustainable economic growth. Our technology brings together robotics, Physical AI, and human ingenuity to create intelligent systems...

Noyo is building the digital infrastructure to bring health insurance enrollment into the modern era. Noyo replaces today’s manual data entry and cumbersome legacy systems with a powerful API platform that enables faster, more accurate data exchange between health insurance platforms and their carrier partners.

Turion Space is building the infrastructure to secure and sustain the future of space. Founded to address the growing need for space domain awareness, in-space servicing, and debris mitigation, Turion designs, builds, and operates spacecraft with real-world operational capability. Our vehicles are built for national security and commercial missions that require speed, autonomy, and resilience. We believe the next chapter of...

Deepgram is the leading voice AI platform for developers building speech-to-text (STT), text-to-speech (TTS) and full speech-to-speech (STS) offerings. 200,000+ developers build with Deepgram’s voice-native foundational models – accessed through APIs or as self-managed software – due to our unmatched accuracy, latency and pricing. Customers include software companies building voice products, co-sell partners working with large enterprises, and enterprises solving...

Cie is a venture studio that serves as an innovation lab and accelerator for bold entrepreneurs who want to transform disruptive ideas into thriving ventures. Cie blends Silicon Valley DNA with the business maturity of serial entrepreneurs, seasoned venture capitalists, and Fortune 500 executives. Combined with the team’s strategic and operational expertise in technology, product development, brand building, and customer acquisition,...

Mixbook is an award-winning design platform that gives people unrivaled creative freedom to tell their stories through beautiful, personalized photo goods. Since our start, we’ve helped more than 6 million people create one-of-a-kind books, cards, prints, and calendars, earning over 35,000+ 5-star reviews and becoming the #1 rated photo book service in the US. Our platform blends trend-forward design with a...

American medicine is the best in the world. But the American healthcare system is challenged by high administrative costs that burden patients, health systems, and insurance companies with unnecessary expenses. We are focused on addressing those challenges. We use GenAI to improve the most pressing financial pain points in the revenue cycle. We’re one of the first companies to deploy GenAI...

Opto Investments (“Opto”) are engineering the future of private markets, offering the solution for wealth managers to efficiently build and manage differentiated private investment programs. Opto’s end-to-end technology solution dramatically streamlines building, fundraising for, and managing a bespoke private markets fund or program, allowing independent investment advisors, family offices, and private banks to scale their offerings without scaling their team. Founded by...

This unlocks rapid iteration improving design lifecycle and enabling a higher rate of innovation. Machina Labs’ manufacturing platform combines the latest advances in robotics and AI so great ideas can quickly and affordably turn to reality.

Rundoo gives independent supply stores the best technology to rise above the competition, so you can win customers, streamline operations, and grow your business.

Industry leaders like Etsy, Robinhood, and Stripe trust Assembled to provide customer-facing AI agents and workforce planning at scale. We automatically resolve millions of interactions through chat, email, and phone while optimizing staffing for hundreds of thousands of support professionals. Our mission is to elevate customer support through AI-powered software that makes life easier for customers and employees.

At Gloo, we believe relationships catalyze growth, and when technology serves relationships, the world can change, one life at a time. So we’re building the technology platform for the faith ecosystem, so people can flourish and communities can thrive. We serve those who serve. From pastors and publishers, developers and donors, individuals and beyond—our technology platform releases the collective strength of...

We're building a collaborative platform for data science and analytics. Our product empowers users to explore, analyze, and share data more effectively and has become essential to how data teams at 800+ companies like Notion, Brex, and Fivetran operate. Every day, Hex empowers thousands of people to ask and answer new questions of data, and seamlessly share the results with...

Gynger is an AR management and embedded financing solution that give B2B technology vendors the power to offer flexible payment terms to customers while securing up front payment. With Gynger, finance leaders can leverage a combination of actionable insights and capital to optimize day-to-day cash flows, accelerate deal flows, and execute long term strategic vision with ease. Our SaaS solution allows...

The world is moving towards more standardized, open, and interconnected data systems. However, employment infrastructure remains complex, closed, and fragmented. Our mission is to democratize access to the infrastructure that underpins the employment sector and unlock much-needed innovations and create tremendous economic activities for both employers and employees.