Marlborough School, founded in 1889, is an independent, urban day school serving a diverse group of young women. The School is committed to delivering a superior college preparatory education in an environment imbued with high ethical values. Marlborough is dedicated to the philosophy that academic excellence, leadership skills, and confidence flourish best in an environment exclusively devoted to the education of young women. The Marlborough community enables each student to develop her fullest potential so that she may become an actively engaged global citizen.

The mission of the Spence School is to educate girls and young women to the highest academic and personal standards necessary for responsible, effective citizenship and for the successful pursuit of higher education. The school is committed to the rigorous study of the liberal arts and sciences appropriate to Grades K through 12. The development of high standards and character is considered as important as achievement in academic areas. The school integrates visual and performing arts, and athletics, both within its academic program and as extracurricular activities. The school creates an environment that fosters the growth of self-confidence, instills the joy of learning, develops the skills of leadership in every student and prepares its graduates intellectually and emotionally for the future. The school is committed to preparing its students for full participation in a diverse and changing world. Believing in the importance of strong traditions, the school also looks to the future and adapts its educational programs to meet the needs of its students, while remaining centered on a curriculum that provides preparation for college as well as "for life."

The Agnes Irwin School is located 10 miles west of Philadelphia. In 1869 AIS was at the forefront in the development of academic education for girls and continues today to be a nationally recognized leader in this field. A rigorous education resulting in excellent college placement and average SAT's of 1300, coupled with a vibrant arts program and participation a highly competitive athletic league is the hallmark of an Agnes Irwin eduaction.

Since 1814, Emma Willard School has been one of the nation's leading college-preparatory boarding and day schools for young women. Known for its challenging academic program, the school promotes intellectual curiosity and disciplined study habits through an outstanding faculty and an extensive curriculum distinguished by a wide array of Advanced Placement courses. The school's extraordinary physical plant, listed on the National Register of Historic Places, provides a breathtakingly beautiful, yet state-of-the-art, setting for learning and living.

Dana Hall School is unlike any other learning environment a girl will ever experience. We’re a school where students tackle demanding coursework and high academic expectations with joy, enthusiasm, and genuine curiosity. A place where girls take the lead in every classroom, on every stage, and on every sports field. We cultivate an environment in which students feel free to discover, become, and express exactly who they are. At Dana Hall, we believe that academic excellence is best realized in girls whose social and emotional needs are equally considered with their intellect. Here, girls have a rare opportunity to explore—fully and without reserve—every aspect of who they are. Their true interests, nascent talents, bold ambitions, and leadership qualities. What ignites their curiosity, moves their hearts, and gives them purpose. Since 1881, our students’ undeniable success—at Dana Hall, in college, and in the world—has borne out the wisdom of our educational philosophy.

Founded in 1886, the Winsor School is an independent day school for academically motivated and promising girls in grades 5-12. Winsor offers a rigorous academic program balanced by the arts and physical education in an environment of warmth and personal attention. As a community, Winsor cherishes respect and generosity of spirit, and its mission underscores its commitment to diversity. Its size means girls build lasting friendships, and it encourages each girl to realize her own uniqueness and promise.

The Baldwin School, an independent college preparatory school, develops talented girls into confident young women with vision, global understanding, and the competency to make significant and enduring contributions to the world. The school nurtures our students' passion for intellectual rigor in academics, creativity in the arts and competition in athletics, forming women capable of leading their generation while living balanced lives.

Castilleja School, established in 1907, is dedicated to providing a rigorous college preparatory education for young women in grades six through twelve. Castilleja School educates women by fostering their intellectual, physical, creative, and emotional growth through an exemplary college preparatory experience within a diverse and supportive community. By blending tradition with thoughtful innovation, the curriculum encourages both individual achievement and collaborative learning. Castilleja's comprehensive program promotes the development of character, compassion, curiosity, and the capacity for effective leadership. Castilleja's philosophy is shaped by both tradition and current research that affirm the academic and personal advantages of girls' schools. We demonstrate this conviction in the conscious attention we pay to the needs, issues, pedagogies, and opportunities particular to girls. While our emphasis is on the development of the intellect, Castilleja is committed to the education of the whole person: heart, body, and spirit as well as mind.

Brearley, an independent school for girls, was founded in 1884 to provide its students with a college-preparatory education equal in rigor to that of boys, and, in the words of our mission statement today, to prepare them for active responsible citizenship in a democratic society. Within a highly articulated 13-year curriculum, and with a 7:1 student-faculty ratio, teaching methods are varied, flexible and pragmatic, taking into account individual patterns of development and ways of learning. Our program is designed to challenge our eager, able students intellectually, and to give each one the opportunity to gain competence, self-reliance and self-knowledge through academic achievement as well as experience in the visual and performing arts, sports, community service and a wide variety of extracurricular activities.

Founded in 1906, Madeira is a girls school by design, where every aspect of academic, social, and athletic life is directed toward educating young women. Madeira's innovative Co-Curriculum Program integrates an experiential learning program with the cultural, political, and business life of the nation's capital into each girl's weekly schedule. The 376-acre campus, which overlooks the Potomac River, is just 12 miles from Washington, D.C. Facilities include a sports center; library; student center; theater; fine-arts studios; photography lab; and riding arenas.

Greenwich Academy is an independent college-preparatory day school for girls and young women that seeks to foster excellence. Its mission is to provide a challenging, comprehensive educational experience grounded in a rigorous liberal arts curriculum within an inclusive, diverse community.

At Saint Mary’s School, we challenge girls academically – to be BOLD, to be INSPIRED, to be PREPARED, and to become EXTRAORDINARY. What sets Saint Mary's School apart from other schools? Our parents say it’s the safety in an urban environment, the small classes, and extraordinary univeristy admission services. Our students say it’s the sense of community, the Honor Code, “space to be yourself,” the location (near cultural centers, concerts, shopping, and restaurants), and feeling accepted and empowered in their learning and social growth. Two identity markers also make Saint Mary’s School a distinct option for high school: we are all-girls, and we are a boarding school, as well as a day school. In an all-girl environment, Saint Mary’s students enjoy not just equal opportunity, but every opportunity, and learning takes center stage without social distractions. Here girls are supported by a culture, climate, and community that together generate high levels of personal and academic self-confidence and a can-do attitude. It’s a place where it’s cool to work hard and be a good student. Saint Mary's offers the AP Capstone diploma program, so that students can develop critical thinking, research, collaboration, and public speaking skills, culminating in a special designation. As a boarding school, Saint Mary’s provides a 24-hour learning environment focused on education supported by heightened interaction between students and their teachers, who see their work as a calling, not a job. Day students at Saint Mary’s have unique advantages, not found at other day schools, for extraordinary access to the school’s facilities, programs, and people—days and nights, weekdays and weekends. Of course, Saint Mary’s is more than college preparatory, independent, all-girls, day and boarding school. It is an honor code school, an Episcopal school, a tablet computer school, and an old school with a storied history and proud heritage. As one alumna aptly describes it, “Saint Mary’s is a fabulously modern take on a very traditional concept.”

Convent of the Sacred Heart is an independent, Catholic day school for girls from kindergarten through grade 12 with a coed preschool and prekindergarten. Part of a Network of more than 200 Sacred Heart Schools in 28 countries, the 22 Sacred Heart schools in the United States share a common set of Goals and Criteria that bind us together, both philosophically and spiritually, in a common educational mission. The Sacred Heart Goals and Criteria provide an enduring framework within which we are free to develop curricula and programming appropriate to the needs of our student body.

Founded in 1843 by lifelong scholar and educator, Sarah Porter, Miss Porter`s School is a college preparatory boarding and day school for girls in grades nine through 12.Located in the center of Farmington, Conn., Porter`s offers a diverse high school experience with 320 students hailing from 27 states and representing 16 countries.The school educates young women to become informed, bold, resourceful and ethical global citizens who will shape a changing world.

Stuart Country Day School of the Sacred Heart serves girls grades K through 12 and offers a co-educational preschool program. Stuart Country Day School is an independent college-preparatory school for girls governed by a lay and religious Board of Trustees. Stuart is a member of the National and International Network of Sacred Heart Schools. Stuart is dedicated to providing young women with a rigorous academic program and a supportive atmosphere in which to best develop their moral and intellectual lives.

The Bryn Mawr School is an independent, nonsectarian, college-preparatory school for girls from preschool through grade twelve. Within a nurturing environment, Bryn Mawr's rigorous academic curriculum inspires a passion for intellectual curiosity and emphasizes the delights and demands of learning. In the classical humanistic tradition, Bryn Mawr promotes the full development of mind, body, and spirit. A Bryn Mawr education is grounded in the expectation that young women will be resilient in the face of complexity, ambiguity, and change; will become responsible and confident participants in the world; and, will lead considered and consequential lives.

The Ethel Walker School is far more than a traditional all-girls school. It is a place where mentor educators galvanize students to harness their creative energies and embark on lives of impact. Unconstrained by gender-biased thinking, Walker’s students are encouraged to test boundaries in the classroom, on the fields, on stage, and in pursuit of knowledge. They embrace that knowledge to build their affluence of mind through a visionary academic approach. Together, in a community where each individual is supported as she defines her perspective and explores new vantage points, students revel in the confluence of spirit generated from this joyful nexus of connection, collaboration, and creation. While at Walker’s, girls are inspired to lead with confidence and conviction. This strength will imbue each graduate throughout her life. Walker’s alumnae carry themselves with grace and a certainty that empowers them to influence and inspire. We’re all for girls and have been since 1911.

Westover is a girls-centered boarding and day school for grades 9–12, including a PG year, in Middlebury, Connecticut—a classic New England town just outside New York City. With a close-knit community of about 190 students, Westover offers an intentionally small environment where each girl is known, challenged, and celebrated. Our signature programs—including Women in Science and Engineering (WISE), the Financial Independence, Resourcefulness, and Entrepreneurship (FIRE) initiative, and the newly launched Westover Institute—provide transformative, real-world learning that empowers students to lead with intellect, integrity, and courage. The Westover Institute is an incubator for the school’s signature programming, allowing students to apply their learning to explore big questions facing their generation through short-form, interdisciplinary courses led by Westover faculty and outside experts. Rooted in a vibrant tradition of academic excellence and sisterhood, Westover prepares young women not only for the world’s most selective universities but for lives of purpose, leadership, and lasting impact. WESTOVER INSTITUTE An Expanding Vision for Westover’s Signature Programs The Westover Institute is a new program that will serve as an incubator for the school’s signature programs, allowing students to apply their learning to explore big questions facing their generation. This program will provide a platform for teachers from inside and outside Westover to lead short courses on topics that range from entrepreneurship and finance to global issues, environmental sustainability, integrity and justice, resiliency, DEIB, leadership, women in science, and more.

Grier School is a girls' boarding school located in Central Pennsylvania, on the East Coast of the United States. Founded in 1853, Grier School has a history of excellence. Grier students become emboldened, engaged, and poised for the future, ensuring students are accepted to elite, top-tier universities.

At Foxcroft, young women discover and enhance their academic and personal strengths in a community where 80% of the faculty lives on campus. Students from 20 states and 8 countries (64% boarding) enjoy a rigorous curriculum enriched by events such as the Goodyear Fellow Program, a two-week interim program, Niblack Lecture Series, and the Poetry Festival. With a 7:1 student/faculty ratio and an average class size of 10, the faculty emphasizes collaboration, a proven way that girls learn best. The 500-acre campus is 50 miles west of Washington, D.C.