ATLIS is proud to have the support of these outstanding independent schools. We are committed to continuing to grow responsibly, so that the value that we add to our member schools is unquestioned.

Alexandria Country Day School, VA

Saddle River Day School, NJ

Alice and Nahum Lainer School, CA

Sage Hill School, CA

Augusta Preparatory Day School, GA

Saint Andrew's Episcopal School, CA

Berkeley Carroll School, CA

Saint Michael's Episcopal Day School, CA

Billings Middle School, WA

 San Francisco Day School, CA

Blue Oak School, CA

Santa Catalina School, CA

Boulder Country Day School, CO

Seven Hills School, CA

Brandeis Marin School, CA

Shore Country Day School, MA

Campbell Hall, CA

St. Anne School, CA

Cannon School, NC

St. Anne's Episcopal School, CO

Carrollton School of the Sacred Heart, FL

St. Christopher's School, VA

Cary Academy, NC

St. David's School, NC

Castilleja School, CA

St. George's Episcopal School, LA

Catlin Gabel School, OR

St. Margaret's Episcopal School, CA

Chadwick School, CA

St. Martin's Episcopal School, LA

Charlotte Latin School, NC

St. Matthew's Parish School, CA

Chatham Hall, VA

St. Michael's Episcopal Day School, CA

Children's Day School, CA

St. Stephen's Episcopal Day School, FL

Collegiate School, VA

St. Stephen's and St. Agnes School, VA

 Colorado Academy, CO

 Stevenson School, CA 

Convent and Stuart Hall Schools of the Sacred Heart, CA

Synergy Schoo, CA

Crystal Springs Uplands School, CA

Tarbut V'Torah Community Day School, CA

Drew School, CA

Thayer Academy, MA

Duke School, NC

The Agnes Irwin School, PA

Episcopal High School, VA

The Athenian School, CA

Ethical Culture Fieldston School, NY

The Berkeley School, CA

Fort Worth Country Day School, TX

The Blake School, MN

Francis W. Parker School, IL

The Brandeis School of San Francisco, CA

Garrison Forest School, MD

The Bryn Mawr School, MD

Gilman School, MD

The Carey School, CA

Greensboro Day School, NC

The Center for Early Education, CA

Groton School, MA

The Children's School, GA

Groves Academy, MN

The College Preparatory School, CA

Gulliver Schools, FL

The Derryfield School, NH

Hathaway Brown School, OH

The Elisabeth Morrow School, NJ

Head-Royce School, CA

The Girls' Middle School, CA

Hopkins School, CT

The Hamlin School, CA

Holderness School, NH

 The Harker School, CA

Interlochen Arts Academy, MI

The Hockaday School, TX

International School of the Peninsula, CA

The Hotchkiss School, CT

John Burroughs School, MO

The Kinkaid School, TX

Kent Denver School, CO

The Lovett School, GA

Kent Place School, NJ

 The Madeira School, VA

Keys School, CA

The New School, AR

Latin School of Chicago, IL

The Newman School, MA

Laurel School, OH

University of Chicago Laboratory School, IL

Maret School, DC

 The Urban School of San Francisco, CA

Marin Country Day School, CA

The Speyer Legacy School, NY

Marin Horizon School, CA

 The Wesley School, CA

Marlborough School, CA

The Wheeler School, RI

Mary Institute and St. Louis Country Day School, MO

The Willows Community School, CA

McDonogh School, MD

The Winsor School, MA

Miami Country Day School, FL

Tilton School, NH

MilikenCommunity Schools, CA

Trinity Episcopal School, TX

Missouri Military School, MO

Trinity School, GA

Montclair Kimberley Academy, NJ

Trinity School of Midland, TX

Mount Tamalpais School, CA

Trinity Preparatory School, FL

Nardin Academy, NY

Trinity Valley School, TX

 Oakwood School, CA

University Prep, WA

Open Window School, WA

University School, OH

Palm Valley School, CA

Viewpoint School, CA

Phillips Brooks School, CA

Virginia Episcopal School, VA

Polytechnic School, CA

Washington International School, DC

Pomfret School, CT

Williston Northampton School, MA

Presidio Knolls School, CA

Windward School, CA

Providence Day School, NC

Woodberry Forest School, VA

Punahou School, HI

Woodside Priory School, CA

Ravenscroft School, NC

Woodward Academy, GA

Robert Louis Stevenson School, NY

Worcester Academy, MA

Roland Park Country Day School, MD