Sierra, a San Francisco, CA-based customer service AI startup, has secured $175 million at a $4.5B valuation. 

Investors 

The funding round, led by Greenoaks Capital with participation from ICONIQ and Thrive Capital, brings Sierra’s total funding to $285 million. 

Greenoaks Capital, a global investment firm headquartered in San Francisco, focuses on concentrated, long-term investments in innovative technology companies worldwide. 

About Sierra 

Founded by Bret Taylor and Clay Bavor, Sierra is a conversational AI platform designed to support customer interactions, issue resolution, and brand-aligned engagement through AI agents. Integrated with enterprise systems, Sierra’s platform autonomously handles customer tasks, reducing the need for human intervention. The company’s clients include major brands like WeightWatchers and Sirius XM. 

Funding Details 

Company: Sierra Technologies, Inc. 

Raised: $175.0M 

Round: Unknown 

Funding Date: October 2024 

Lead Investor: Greenoaks Capital 

Additional Investors: ICONIQ, Thrive Capital 

Company Website: https://sierra.ai/  

Software Category: Customer Service 

Source: https://techcrunch.com/2024/10/28/bret-taylors-customer-service-ai-startup-just-raised-175m/