Enterprise AI startup Sierra, founded by Bret Taylor, has raised $950 million in a funding round led by Tiger Global and GV, pushing its valuation above $15 billion and giving the company more than $1 billion in total capital to expand its platform. Sierra focuses on AI-powered customer service agents designed to handle large-scale enterprise interactions, including tasks such as financial processing, insurance claims, and customer support workflows. The company reports rapid adoption, claiming its systems now serve a significant portion of Fortune 50 companies and process billions of automated interactions. Growth has been fueled by strong enterprise demand for agentic AI systems, though companies are also facing rising operational costs as they scale these tools. Sierra recently expanded its platform with “Ghostwriter,” a system that can autonomously build and deploy custom AI agents based on natural language instructions. The funding reflects intensifying competition in enterprise AI as firms race to build dominant platforms for automation and digital workforce transformation.
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https://techcrunch.com/2026/05/04/sierra-raises-950m-as-the-race-to-own-enterprise-ai-gets-serious/
