Sierra raises $950M Growth
Sierra: Sierra builds conversational AI agents for customer service.
- Round
- Growth
- Amount
- $950M
- Announced
- Valuation
- $15B
- Lead investors
- Tiger Global, GV
- Headquarters
- San Francisco, United States
More: Sierra funding history · rounds in May 2026 · rounds in United States
Other Sierra rounds
- Sierra raises $350M, . AI apps. Led by Greenoaks Capital. Builds AI agents that handle customer service for large companies.
- Sierra raises $175M, . AI apps. Led by Greenoaks Capital. Builds AI agents that handle customer service for large companies.