An Open Source Program Office (OSPO) is an organizational construct, originally developed in technology companies, with dedicated staff who coordinate and support open source activity. When adapted to a university, an OSPO can offer: 1) training and individualized support for faculty, students, and staff who want to grow local software efforts into healthy open source projects, 2) advice on how best to contribute to existing projects, 3) documentation of the value of open source work and 4) facilitation of relationships with other organizational units like technology transfer, research computing, or the library. This grant funds the establishment of an OSPO at the University of Wisconsin–Madison. The new OSPO will be housed in the University’s Data Science Institute (DSI) and be led by DSI Director Kyle Cranmer, a physicist with a passion for nurturing an open source ethos on the UW campus and beyond. At the center of the University of Wisconsin’s planned OSPO is a ‘maturity model’ that aims to move individuals from awareness and use of open source to active community contribution and finally into leadership of community projects. This model will guide an approach to supporting faculty and students into deeper engagement with open source software practices. Grant funds will support a survey of current practice on campus, the development of a series of trainings, and an expansion of UW’s existing Open Source Internship program (which onboards undergraduates into research experiences as contributors to faculty software projects) that will include a partnership with Madison College. Funds will also support events aimed at engaging UW—Madison Extension, the Office of Business Engagement, and the entrepreneurial ecosystem in the Madison area. Other grant funds will enable the hiring of an OSPO Program Manager, provide partial administrative and communications support, and provide access to a data science or research software engineer for technical consulting.