• St. Mark's School of Texas
• Fort Worth Country Day
• Fort Worth Academy
• All Saints' Episcopal School, Fort Worth
• Trinity Valley School
• St. John XXIII College Preparatory
• St. Philip's School & Community Center
• St. Mary's Hall
• Houston Christian High School
• St. George Episcopal School
• Texas Military Institute / TMI Episcopal 
• All Saints Episcopal School, Tyler
• St. Stephen's Episcopal School, Austin 
• Legacy of Education - Alpha School
• The John Cooper School 
• Good Shepherd Episcopal School 
• Magellan International School 
• Trinity School of Midland 
• The Girls' School of Austin 
• The Oakridge School
• Calvary Episcopal School
• Congaree Foundation
• International School of Texas
• Trinity Episcopal School of Austin
• St. Andrew's Episcopal School
• Ascension Academy
• Headwaters School
• Allen Academy
• St. Helena's Episcopal Church & School
• Presbyterian School 
• St. Francis School 
• St. Luke's Episcopal School 
• Empowering Others Prep
• St. James Episcopal School of Dallas
• Duchesne Academy Of The Sacred Heart 
• St. John's Episcopal School, Dallas
• St. Francis Episcopal School
• The Joy School
• Coram Deo Academy
• Episcopal High School, Houston
• The Episcopal School of Dallas
• The Winston School
• The Shlenker School
• The Fay School
• St. Pius X High School
• ParagonED
• The Regis School of the Sacred Heart
• Trinity Christian Academy
• Legacy Christian Academy, Frisco
• Wesley Prep
• Alcuin School
• Archway Academy
• Rawson Saunders School
• The Bloom School
• The Rise School of Austin
• Austin Waldorf School
• FIERCE United
• Cornerstone Christian Schools
• Providence Christian School of Texas
• Fort Bend Christian Academy
• First Baptist Academy of Houston
• St. Davids Episcopal School
• Achieve Learning Center
• Kaufman Christian School
• Guidepost Global Education
• Leona Connected Academy
• Hill Country Montessori School
• The Brook Hill School
• Logos Preparatory Academy
• Hill Country Christian School of Austin
• Saint Nicholas School

‍