Agents & dev tools · US
Sierra was valued at $15.8B as of 4 May 2026 (verified). Source: TechCrunch, Sierra raises $950M as the race to own enterprise AI gets serious (Series E at a $15.8B post, led by Tiger Global and GV).
Customer-experience agents; Bret Taylor's company. ~$200M ARR at the May 2026 Series E.
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Last updated 4 May 2026. Follow Sierra in any feed reader to hear when its valuation moves.
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