Framework and observability for building AI agents
LangChain makes the most widely used open-source frameworks for building LLM applications and agents (LangChain, LangGraph) plus LangSmith, its observability and evaluation platform.
AI📍 San Francisco, CAFounded 2022
Current Valuation
$1.3B
as of 2025
UNICORN
QL Price
$1.1B
-12% vs last round
QuantLogix's current estimate for LangChain, published 2026-09-21 — below the last disclosed round of $1.3B (2025).
Confidence
medium
Basis
secondary led
What backs this price
Last disclosed round
$1.3B
2025
weight 0.61
Secondary market print
$946.25M
2026-06-27
weight 0.6
How this price has held up
No round has priced for LangChain since QuantLogix began publishing a price for it, so there is nothing to grade yet. The claim above is on the record from 2026-09-21 and will be graded against the next priced round. See the full accuracy record →
Which publicly-traded funds already hold it, what $10,000 buys, and whether any route is open to you.
Cite this price as QuantLogix QL Price, LangChain, 2026-09-21 (aaa146bd0a968f93).
The id pins this exact claim, so a citation stays checkable after the price moves.
Model estimate for research — not a quote, target price, or investment advice.
IPO Outlookprivate
Is LangChain going public?
No. LangChain is private and has not filed to go public. There is no S-1 on file.
What is LangChain's valuation in 2026?
LangChain is valued at $1.3B as of 2025. That is the last confirmed mark, not a live price — private shares do not trade continuously.
Has LangChain filed an S-1?
No public S-1 is on file for LangChain.
Can you buy LangChain stock?
No. LangChain is a private company — its shares are not listed on any exchange and there is no ticker. The routes to exposure are pre-IPO secondary marketplaces and funds (accredited investors), employee tender offers when the company runs one, and public companies with read-through exposure. QuantLogix maps every route it can verify for LangChain on its Pre-IPO Access Desk.
Answers are derived from the roster record shown on this page — filing status, last round and confirmed marks. Where the record is silent, the answer says so rather than guessing.
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
Secondary price return by period
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 →
Vertical Intelligence — AI / ML
No verified Hugging Face organization found for LangChain — no attributable open-model footprint. Closed-weights labs are common; this is a distribution signal, not a capability judgment.
Checked huggingface.co as of 2026-09-18. Re-checked weekly.
Talent Signal
Hiring trend
▶ Hiring steady
+1% vs 2026-08
Open roles
108
via ashby
Product-build share
47%
engineering, research, product, design
Trajectory
steady
product-led hiring — 47% of open roles build product; the rest are go-to-market and G&A.
Actively hiring with no tracked executive churn.
Open roles by month
Open roles by function
■ product-building ■ go-to-market / G&A
Python OSS Engineer Senior Frontend Engineer, AI Observability & Evals Platform Senior Fullstack Engineer, AI Observability & Evals Platform Senior Technical Support EngineerFullStack Engineer, AI Observability & Evals Platform (LangSmith)Frontend Engineer, AI Observability & Evals Platform
Counted from LangChain's live job board as of 2026-09-16; role functions classified from posting titles. Open-role counts are an activity signal, not headcount. Refreshed monthly.
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.