Dimforge is a French EURL (single-member limited liability company) based in France. It is an open-source company created in August 2020 by @sebcrozet in order to ensure the long-term development and maintenance of some popular math and physics Rust crates.

@sebcrozet started using the Rust programming language since 2013 and started contributing to the gamedev and scientific computing ecosystem developing a collision detection library, a physics engine and a a linear algebra library. Dimforge is the successor of the former informal Rustsim organization on GitHub.