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LangChain

Framework and observability for building AI agents
AI 📍 San Francisco, CA Founded 2022
Current Valuation
$1.3B
as of 2025
UNICORN
LangChain makes the most widely used open-source frameworks for building LLM applications and agents (LangChain, LangGraph) plus LangSmith, its observability and evaluation platform.

Company Profile

CEO
Harrison Chase
Founded
2022
HQ
San Francisco, CA
IPO Status
private

Fundraising Status

private

Secondary Market

Implied price / share
$51.13
Last round price / share
$67.54
vs last round
-24.3%
Open interest
5
Last round price vs secondary price
Last round vs current secondary price per share$67.54Last round$51.13Current
Secondary price return by period
Secondary market period returns3-month+15.4%6-month+17.2%1-year+411%All-time+303%
Implied per-share price from private secondary transactions, as of Jun 2026. This is a point estimate, not a quote — the feed carries no bid, ask or spread, and a secondary print is evidence of what someone paid on that date rather than a live market. Compare across every tracked name →

Founders & Key People

Harrison Chase

Products

  • LangChain framework
  • LangGraph
  • LangSmith observability

Competitors

LlamaIndex · Vercel
AIDeveloper ToolsAgentsLLMOps
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2025. Refreshed quarterly.