Investors are showing strong confidence in Sierra, the AI agent startup co-founded by former Salesforce co-CEO Bret Taylor.
The company, which builds AI-powered customer service agents for enterprises, announced Thursday it has raised $350 million in fresh funding. The round was led by existing backer Greenoaks Capital and pushes Sierra’s valuation to $10 billion, according to a company blog post confirming an earlier Axios report.
Founded in early 2024 by Taylor and former Google executive Clay Bavor, Sierra has already attracted hundreds of customers including SoFi, Ramp, and Brex. In just 18 months, the company has raised a total of $635 million, with earlier rounds backed by Sequoia, Benchmark, ICONIQ, Thrive Capital, and Greenoaks.
Both founders bring deep expertise in consumer and enterprise technology. Taylor previously co-founded Quip (acquired by Salesforce for $750M), helped launch Google Maps, and served as Facebook’s CTO before joining Salesforce. Bavor spent years at Google managing Gmail, Google Drive, and other major products.
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Alongside its funding milestone, Sierra is also expanding its APX program, a rotational initiative for recent computer science graduates modeled after the Google program that launched both Taylor’s and Bavor’s careers two decades ago. The program offers hands-on roles in engineering and product management, giving graduates “an irresponsible amount of responsibility,” as Taylor put it.
The expansion comes at a time when job seekers face a tough market, but Sierra sees the move as a way to invest in fresh talent while scaling its AI agent business.
