Sim is an open-source AI workspace that allows teams to build, deploy and manage AI agents across their organisation. Founded in 2025 and headquartered in San Francisco, the company is Y Combinator-backed and raised $7M in a Series A round. Its platform connects hundreds of integrations and every major large language model, and gives administrators governance over access, spend, data and deployment from a single place.
The Sim AI Workspace Platform supports three ways of constructing agents: visually through a workflow canvas, conversationally through chat, and programmatically via code and a command-line interface. The company reports more than 100,000 builders using the platform. Customers include Rivian, eXp Realty and Volkswagen Group Technologies, spanning the automotive, real estate and enterprise technology sectors.
Technical work at Sim touches AI agents, large language models, workflow automation and enterprise security and compliance. The product is open source and supports self-hosted deployment through Docker and Kubernetes, alongside its hosted offering. The company describes an open-source ethos combined with an enterprise-grade focus on security and compliance.
