Marissa Rosen
Executive Director
Trio Foundation of St. Louis
As the Executive Director of the Trio Foundation of St. Louis, Marissa Rosen leads the organization’s mission to enhance the St. Louis community via the fulfillment of humanpotential and a focus on ecological impact. With a strong background in nonprofit management, philanthropy and development, Marissa brings strategic vision and operational expertise to drive meaningful change.
Prior to joining the Trio Foundation of St. Louis, Marissa served as the Director of Development at the National Council of Jewish Women St. Louis, where she
successfully created and implemented an annual giving program, executed a successful capital campaign and forged key relationships in the community. Her career spans 20 years of leadership in the nonprofit and philanthropic sectors, with a focus on development, relationship building, and community service.
A passionate advocate for family philanthropy, Marissa believes in the power of collaboration to create sustainable impact. She holds both a BA and an MSW from
Washington University in St. Louis and has been recognized for her contributions to Philanthropy Missouri, JFS St. Louis and the National Council of Jewish Women.
Outside of work, Marissa enjoys travel, playing pickleball and mahjong and keeping up with her teens. She is also proud to serve at President of the Ladue School District.
How does Philanthropy Missouri support your work in the philanthropic sector?
Philanthropy Missouri supports my work by facilitating networking opportunities with other nonprofits and grantmakers, advocating for beneficial policies, and sharing valuable insights on the sector. This support enhances our effectiveness and impact in the region.