LangChain
Updated: November 25, 2025
CEO - Harrison Chase
Country: USA | Funding: $160M (+)
Founded: 2022
Website: https://www.langchain.com
LangChain is a platform providing open-source frameworks and tools for developing and deploying agents based on language models. LangChain began as a project developing open-source add-on tools for creating language models (web search, API calls and database interactions). As modern model developers expanded their infrastructure, LangChain evolved into a platform for creating enterprise agents. The company's core products include the LangChain agent builder, LangGraph - orchestration and context/memory management tool, and LangSmith - testing/observation tool. LangChain remains extremely popular among open-source developers.
Founded: 2022
Website: https://www.langchain.com
LangChain is a platform providing open-source frameworks and tools for developing and deploying agents based on language models. LangChain began as a project developing open-source add-on tools for creating language models (web search, API calls and database interactions). As modern model developers expanded their infrastructure, LangChain evolved into a platform for creating enterprise agents. The company's core products include the LangChain agent builder, LangGraph - orchestration and context/memory management tool, and LangSmith - testing/observation tool. LangChain remains extremely popular among open-source developers.
