Humanity Unfolds
Customer-facing AI agentsSierra
A platform for building customer-facing AI agents that use business systems to resolve requests and take action.
At a glance
- Founded
- 2023
- Headquarters
- San Francisco, California, US
- Category
- Customer-facing AI agents · enterprise software
Founders in the archive
Funding
$1.585B in disclosed financing
Includes the May 2026 announced raise. SoftBank Vision Fund 2 also invested in December 2025; its undisclosed amount is excluded.
View financing details & sourcesOrigins & connections
Founded by former Salesforce co-CEO Bret Taylor and former Google Labs leader Clay Bavor. Publicly introduced in February 2024.