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acquisitionAnnounced · Jan 18, 2026AI/ML observabilitySource · Community DiscussionsArticle · Factual
ClickHouse acquires Langfuse
David Najork · Founding Software Engineer
Announced · Updated · 1 min read
Deal value
—
Target
Langfuse
Acquirer
ClickHouse
Full Acquisition
Status
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ClickHouse agreed to acquire Langfuse. Reported deal value: Undisclosed. Status: Announced. Sector: AI/ML observability. Target headquarters context: Location not specified.
This page summarizes publicly available information about the transaction as of 2026-01-18. Figures and status may change as filings and press coverage update.
ClickHouse dropped a triple bomb : a $400M Series D led by Dragoneer , the acquisition of Langfuse —the leading open-source LLM observability platform serving 19 Fortune 50 companies—and a commitment to keeping Langfuse MIT licensed
Deal timeline
Announced
Jan 18, 2026 · byteiota.com
Additional milestones (proxy, vote, close) appear as filings and press updates are indexed.
Sector context
This transaction is classified in AI/ML observability. Figures and status may change as sources update.
Sources: byteiota.com · Primary article · FireStrike proprietary index