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Series ESierra

Sierra Raises $950 Million In Series E Round Led By Tiger Global And Google’s GV

Sierra , the AI startup cofounded by OpenAI chair Bret Taylor and Clay Bavor , raised $950 million in a Series E round led by Tiger Global and Google’s GV, with participation from Benchmark , Sequoia, Greenoaks and ot…

By TradedVC Editorial1 min read
Sierra Raises $950 Million In Series E Round Led By Tiger Global And Google’s GV

Sierra, the AI startup cofounded by OpenAI chair Bret Taylor and Clay Bavor, raised $950 million in a Series E round led by Tiger Global and Google’s GV, with participation from Benchmark, Sequoia, Greenoaks and others, pushing its post-money valuation to $15.8 billion from $10 billion last fall. The company, which builds AI customer service agents for enterprise clients, says the new capital will help it scale amid intensifying competition in the fast-growing AI agents market and deepen its lead as demand from large enterprises accelerates.

FOUNDERS: Bret Taylor & Clay Bavor

INVESTORS: Tiger Global, Google’s GV, Benchmark, Sequoia & Greenoaks

ROUND: Series E AMOUNT: $950,000,000

HQ: San Francisco, California

#VentureCapital #Sierra #BretTaylor #ClayBavor #TradedVC

ABOUT THE DEAL

Raise
$950M
Round
Series E
Company
Sierra
Desk
Deals
Filed
May 4, 2026
Investors
  • Tiger Global
  • Google’s GV
  • Benchmark
  • Sequoia
  • Greenoaks
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