LangChain

Framework for building applications with LLMs.

langchain.com

HQ: San Francisco, CA, USA

Developer Tools

Company research

Public company, workplace, funding, and market signals

Updated Aug 2, 2026

Overview

LangChain is an AI agent-engineering company founded around its popular open-source framework. It helps developers build, evaluate, deploy, observe, and operate reliable LLM-based agents, combining open-source frameworks with a commercial platform.

Primary product

LangSmith, the commercial agent-engineering platform for observability, evaluation, deployment, sandboxes, fleet management, and related agent operations; the broader product suite also includes the open-source LangChain and LangGraph frameworks and Deep Agents.

Founded

2023

Headquarters

San Francisco, California, United States

Team size

Approximately 200–300 employees (third-party LinkedIn-derived estimate, July 2026)

Work style

Flexible

Industry

Technology, Information and Internet

Sub-industry

AI software; developer tools; agent engineering; observability and evaluation infrastructure

Offices

San Francisco, California, United States

New York, New York, United States

Boston, Massachusetts, United States

Amsterdam, Netherlands

Business model

Open-source developer adoption and ecosystem distribution

SaaS subscriptions for LangSmith

Usage-based pricing for compute and storage

Enterprise contracts and custom pricing

Professional/customer engineering and deployment support

Funding

Stage

Series B

Total raised

$160M

Latest round

Series B · Oct 2025

Latest amount

$125M

Series B

Oct 2025 · IVP

$125M

Series A

Feb 2024 · Sequoia Capital

$25M

Seed

Apr 2023 · Benchmark

$10M

People & investors

Leadership

Harrison Chase

Co-Founder and CEO

Ankush Gola

Co-Founder and CTO

Alex Lunev

Vice President of Engineering

Matthew Pugh

VP, EMEA - GTM

Kristin Bryan

VP People

Sriram Puthucode

Global Head of Customer Support

Investors

Institutional Venture Partners (IVP)

Work & culture

The company emphasizes high ownership and autonomy through principles including “Maximum agency,” “Build something great,” “Embrace hot takes,” and “Run to the roar.” Its careers material presents a technically ambitious, fast-moving, developer-focused environment.

Work style

Flexible

Compensation

Job postings describe competitive location- and experience-based base compensation, variable compensation for relevant roles, meaningful equity, benefits, and perks. Public postings do not establish a single company-wide salary band or universal visa policy.

Benefits

Medical, dental, and vision coverage

Flexible vacation

401(k) plan

Life insurance

Meals on US in-office days

Meaningful equity

Variable compensation for applicable roles

Locally competitive regional benefits in EU, UK, and APAC

Product & market

Pricing

LangSmith has a free Developer plan, a $39/seat/month Plus plan, custom-priced Enterprise plans, and metered LangChain Compute Units and LangChain Storage Units. Open-source LangChain and LangGraph are available under open-source licenses.

Differentiators

—Large open-source ecosystem and broad model, tool, and database integrations
—End-to-end workflow from agent development through evaluation, deployment, observability, and operations
—LangGraph provides controllable, stateful orchestration for complex and long-running agents
—LangSmith combines tracing, evaluation, debugging, deployment, and production monitoring
—Framework-agnostic SDK and platform support across Python, TypeScript, Go, and Java
—Enterprise-oriented governance, secure execution sandboxes, and agent fleet management

Technology

Python

TypeScript/JavaScript

Java

LangChain

LangGraph

Deep Agents

LangSmith SDK/API

OpenAI integrations

Anthropic integrations

Google Gemini integrations

Retrieval-augmented generation (RAG)

Multi-agent orchestration

LLM observability and tracing

Evaluation and testing

Docker/Kubernetes

MicroVM sandboxing

OpenTelemetry

Customers

Replit

Clay

Harvey

Rippling

Cloudflare

Workday

Cisco

Klarna

Coinbase

Lyft

Vanta

Monday.com

NVIDIA

Remote

Competitors

Langfuse

Arize

Braintrust

Weights & Biases

Humanloop

LlamaIndex

Scale & contact

Estimated revenue

Approximately $12M–$16M ARR as of mid-2025, with later third-party estimates around $16M for 2025; company has not publicly provided audited revenue figures.

Estimated monthly visits

3.1M

support@langchain.dev

Latest news

LangChain and NVIDIA Launch the NemoClaw Deep Agents Blueprint

LangChain · Jul 2026

LangChain and NVIDIA announced a blueprint combining Deep Agents, NVIDIA Nemotron models, and OpenShell for governed enterprise agent systems.

LangSmith Sandboxes are Generally Available

LangChain · May 2026

LangChain announced general availability of secure, scalable sandbox environments for agent code execution, with controls for credentials, resources, lifecycle, access, snapshots, and auditing.

Announcing the LangChain + MongoDB Partnership: The AI Agent Stack That Runs On The Database You Already Trust

LangChain blog · Mar 2026

Major partnership announcement with MongoDB covering LangSmith checkpointer, LangGraph integrations, and production agent workflows.

LangChain Announces Enterprise Agentic AI Platform Built with NVIDIA

LangChain / PRNewswire · Mar 2026

LangChain announced an enterprise integration with NVIDIA spanning LangChain, LangGraph, Deep Agents, LangSmith, Nemotron, NIM, NeMo Agent Toolkit, and OpenShell, and joined NVIDIA’s Nemotron Coalition.

Interrupt: The Agent Conference

LangChain · Feb 2026

LangChain announced its 2026 Interrupt conference, focused on production agent engineering, customer lessons, workshops, and new product releases.

Jobs and careers at LangChain

106 jobs at LangChain

Deployed Engineer, Professional Services (APAC)

Remote

Customer Engineering

Remote - Singapore; Singapore

4d ago

Remote

Full-time