May. 4 at 7:45 PM
AI startup Sierra has secured
$950 million in new funding, bringing its valuation to
$15.8 billion—up from
$10 billion just last fall.
The company develops AI agents designed to manage customer service calls, eliminating wait times and supporting multiple languages. It is already generating over
$150 million in annual revenue, with major clients including banks, Prudential,
$CI, and 40% of Fortune 50 companies.
Founded just three years ago, Sierra was launched by OpenAI chairman and former Salesforce co-CEO Bret Taylor, alongside former Google executive Clay Bavor. https://www.cnbc.com/2026/05/04/bret-taylor-sierra-fundraise-openai.html