Company intelligence
As of October 20, 2025, LangChain was last valued at $1.25B (October 2025 Series B) and has raised at least $125M in equity across 1 sourced funding round.
LangChain builds an open-source framework (and LangGraph/LangSmith platform) for developing, orchestrating, and monitoring LLM-powered applications and AI agents.
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LangChain is a developer tools company, based in San Francisco, California, USA, founded 2023 by Harrison Chase, Ankush Gola.
| Date | Round | Amount | Valuation | Lead investors | Source |
|---|---|---|---|---|---|
| Oct 20, 2025 | Series B | $125M | $1.25Bpost-money | LangChain | |
| Jul 9, 2025 | Series BRumorednot counted: rumored | $100M | — | — WithIVP (Institutional Venture Partners)unverified | SiliconANGLE |
Equity only. “Equity raised” above sums the rounds with a dated, linked source; rumored rounds, tender offers and secondary sales are listed but not counted, and debt financing is listed separately.
A newly detailed agentic memory framework reportedly answers queries using about 118,000 tokens, versus roughly 3.26 million for the widely used LangMem approach -- a ~28x efficiency gain. As AI agents take on longer, multi-step tasks, how they store and retrieve memory is becoming a decisive factor in both cost and capability.
Roughly 7,000 internet-exposed Langflow servers are being actively exploited, and researchers warn the same class of flaws extends to LangGraph and LangChain -- the orchestration backbone of much of today's agent stack. It's a stark reminder that the rush to ship AI agents has outpaced the security hardening underneath them.
Roughly 7,000 internet-exposed Langflow servers are under active attack, and security researchers warn that the same class of vulnerabilities extends to LangGraph and LangChain -- the de facto plumbing of the agent boom. As enterprises rush AI agents into production, the orchestration layer is emerging as a soft, high-value target.
LangChain was last valued at $1.25B in its October 2025 Series B, according to LangChain (October 20, 2025).
LangChain has raised at least $125M in equity across 1 sourced funding round tracked by Value Add VC. The most recent was a $125M Series B in October 2025 at a $1.25B post-money valuation, reported by LangChain. Debt financing, tender offers and secondary sales are not counted.
Lead investors in LangChain's sourced funding rounds include IVP (Institutional Venture Partners). Per round: its October 2025 Series B was led by IVP (Institutional Venture Partners).
LangChain was founded in 2023 and is headquartered in San Francisco, California, USA, according to Contrary Research.
Figures are labelled Reported (a source states it), Estimated, Derived (computed from other facts) or Rumored (in talks / unconfirmed). Rumors never replace a confirmed figure. Each figure keeps its own as-of date; history is preserved rather than overwritten.
