Sierra

Bret Taylor's Sierra raised $350M at a $10B valuation, up from $4.5B in October 2024, and says its AI customer service agents are used by “hundreds of millions”

When I was considering joining just over 6 months ago … Florian Dahlhausen : Excited to announce that Sierra has raised $350M additional capital at a valuation of $10B, led by Greenoaks. … Alexandra J...

Source: Sierra, which builds AI customer service agents, nears a $350M raise at a $10B valuation, up from $4.5B in October 2024, and is set to top $100M in ARR

Ina Fried / Axios :

Sierra, an AI startup co-founded by OpenAI board chairman and ex-Salesforce co-CEO Bret Taylor, raised $175M, valuing it at $4.5B, up from ~$1B in February 2024

Sierra, an enterprise-focused conversational AI startup co-founded by Bret Taylor and Clay Bavor, launches with $110M in funding led by Sequoia and Benchmark

Sierra, an enterprise-focused conversational AI startup from Bret Taylor and Clay Bavor, launches with $110M in fundraising led by Sequoia Capital and Benchmark

Bret Taylor, right, launches Sierra, a conversational AI platform for businesses, with former Google executive Clay Bavor, left.

Source: Sierra, an enterprise-focused AI startup co-founded by Bret Taylor, plans to raise $85M led by Sequoia at a ~$1B valuation; Taylor is on OpenAI's board

Katie Roof / Bloomberg :