This document discusses open science and the role of OSGeo (Open Source Geospatial Foundation) in supporting open science. It notes that open science allows for broad data sharing across disciplines and open verification of research results. Funding agencies are increasingly requiring open science as part of research grants. OSGeo supports open geospatial technologies and ensures their long-term maintenance through community software projects. It has established criteria to evaluate software projects and designate them as official OSGeo projects. OSGeo has supported many open source geospatial projects over its 10+ year history.