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Winsor is an independent day school for academically promising and motivated girls in grades 5-12. The school enrolls approximately 430 students from diverse cultural, racial and ethnic backgrounds. They hail from more than 50 different communities in and around the city of Boston. Winsor’s lessons—and friendships—stay with girls for their lifetimes. The college choices of Winsor graduates reflect the strength of the school and its students. In the last five years, the colleges attracting the largest number of Winsor alumnae were Harvard, Brown, BC, Columbia, MIT, Amherst, George Washington, and Yale. While college is in girls’ immediate futures, Winsor truly prepares them for life.

The Winsor School Questions

The The Winsor School annual revenue was $29.8 million in 2026.

Karen Geromini is the COO of The Winsor School.

128 people are employed at The Winsor School.

The Winsor School is based in Boston, Massachusetts.

The NAICS codes for The Winsor School are [611110, 61111, 611, 6111, 61].

The SIC codes for The Winsor School are [821, 82].

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