Top Tech Startups in California, US in 2027

Dart Browser is building a browser for the agentic web, with privacy, useful AI, and user control at its core. Built on Chromium, Dart combines local-first AI agents, hardware-bound cryptographic identity, and bring-your-own-model flexibility. The Dart Agent helps people research, summarise information, and complete tasks across tabs. It works with browsing context such as tabs, bookmarks, history, and local documents, within permissions set by the user. Local models keep inference on the device; users can also choose their own cloud provider or company gateway. Our approach centres on three principles: • Local-first intelligence, with cloud inference as a user choice. • Model freedom: connect your own provider or local runtime, without Dart marking up inference. • Verifiable security: hardware-backed identity, post-quantum cryptography, and local agent action logs. We are a small team working across browser engineering, security, cryptography, applied AI, and design. Based in Delhi and San Francisco and working remotely, we value clear written decisions, meaningful ownership, and transparent research. Our mission is to build a browser that serves the person using it. If you care about privacy, AI, and making complex technology useful, explore our opportunities and help shape what comes next. Learn more at dartbrowser.com.

Konji pays you to shop. Shoppers find thousands of products from hundreds of brands in one app, check out once, and earn credit back on what they buy.

Driving smarter hospital operations with trusted AI. RxGPT automates patient routing, admin work, and communication—freeing healthcare teams to focus on what matters most: quality care. Fast onboarding. Seamless integration. Always secure.

Mission Bit is a San Francisco-based nonprofit organization that provides free, project-based computer science education to public school students who have historically had limited access to technology and tech careers. Through hands-on courses, mentorship, and industry exposure, students build technical skills while exploring how technology can shape their futures. Our programs are designed to be inclusive, collaborative, and rooted in the identities and experiences of the young people we serve. Mission Bit inspires youth to explore the world of STEM with project-based computer science education that embraces their identities.