LangChain
About LangChain
LangChain is a fast‑growing AI platform company that provides the foundational tools and services for building, evaluating, deploying, and operating large‑language‑model (LLM) agents at scale. Originating as a widely adopted open‑source library, the company now offers a comprehensive suite that includes LangChain, LangGraph, Deep Agents, and the LangSmith platform for observability, evaluation, and deployment. With over 100 million monthly open‑source downloads and more than 6,000 active LangSmith customers, LangChain’s technology is trusted by leading enterprises such as Klarna, Coinbase, Lyft, Cloudflare, and several Fortune‑10 firms. Backed by $125 million in Series B funding from prominent investors like Sequoia and CapitalG, the company is expanding its product portfolio and accelerating growth. The culture emphasizes impact, collaboration, and a commitment to making intelligent agents ubiquitous, offering engineers the chance to shape cutting‑edge AI infrastructure used by developers worldwide.