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Sierra · Series c

Conversational AI agents for every business

Amount

$350M

Round

Series c

Valuation

$10B

Announced

Sep 2025

Notes

Led by Greenoaks Capital; Sequoia, Benchmark, ICONIQ, Thrive Capital

📎 Source

Other Sierra rounds

Date Round Amount
Sep 2025 Series C $350M Details →
Oct 2024 Series b $175M Details →
Oct 2024 Series b $175M Details →
Feb 2024 Series a $110M Details →
Feb 2024 Series A $110M Details →