The Open Force Field Initiative is a network of academic and industry researchers working together to advance science and infrastructure required for building the next generation of small molecule and biomolecular force fields. The aim is to develop automated and systematic data-driven techniques to parameterize and assess new generations of more accurate force fields. Software and data are released under open licensing agreements to enable rapid application, validation, extension and any kind of modification by our users and contributors. Building and supporting a strong community of users and contributors from industry and academia is another important goal for the Initiative, as well as exploring different pathways to sustainability.