AI May 6, 2026 1 min read
Sierra, co-founded by Bret Taylor, closed a $950M Series E at $15.8B valuation on May 4. The enterprise AI agent company has over 40% of the Fortune 50 as customers and $150M ARR.
Sierra, co-founded by Bret Taylor, closed a $950M Series E at $15.8B valuation on May 4. The enterprise AI agent company has over 40% of the Fortune 50 as customers and $150M ARR.