AI Companies in Palo Alto, CA

xAI

Foundation Models & AGI

Series C

AI foundation model developer that raised $6B in late-stage funding. Latest round details, valuation data, and investor breakdown for May 2026.

Inflection AI

Consumer AI

Series B

AI company building personal AI assistants for meaningful conversation and productivity. Creator of Pi, a conversational AI designed for emotional intelligence and empathetic interaction. Co-founded by DeepMind co-founder Mustafa Suleyman and LinkedIn co-founder Reid Hoffman, Inflection trained one of the largest language models before pivoting its consumer product strategy.

Glean

Enterprise AI

Series E

AI-powered enterprise search and knowledge management platform that connects and understands all company applications and data. Glean indexes content across SaaS tools like Slack, Google Workspace, Confluence, and Salesforce to deliver personalized search results and AI-generated answers. Rapidly adopted by large enterprises as an internal knowledge assistant and AI work hub.