MAG Partners

About MAG Partners

MAG Partners is a woman-owned urban real estate developer specializing in large-scale, iconic projects across New York and Baltimore. Led by founder MaryAnne Gilmartin, the firm has a multi-million-square-foot portfolio of office, residential, and mixed-use developments, with a strong emphasis on sustainability, placemaking, and community impact. The company operates as a master developer and development partner for complex urban projects, including ground-up buildings and master-planned districts. MAG Partners emphasizes partnerships with investors and community stakeholders to create value for neighborhoods and long-term tenants.