<p><strong>SAN FRANCISCO</strong> &#8212; Sierra, a company that helps build AI platforms for businesses, has raised $900 million at a valuation of over $15 billion. The round was led by Tiger Global and GV (formerly Google Ventures).</p>
<p>Sierra was co-founded by Bret Taylor and Clay Bavor, who first met while working together at Google. Taylor is also Chair of Open AI.</p>
<p>Taylor says Sierra is serving over 40% of the Fortune 50, and agents built on the platform are powering billions of customer interactions — everything from refinancing homes to processing insurance claims, returning orders, and helping people raise millions in fundraisers.</p>
<p>The company has offices in <span class="text-green-350">New York</span>, <span class="text-green-350">Atlanta</span>, <span class="text-green-350">London</span>, <span class="text-green-350">Singapore</span>, <span class="text-green-350">Tokyo</span>, <span class="text-green-350">Paris</span>, <span class="text-green-350">Madrid</span>, <span class="text-green-350">Toronto</span>, and <span class="text-green-350">San Francisco.</span></p>
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