New England Preparatory School Athletic Council

The New England Preparatory School Athletic Council (NEPSAC) was founded in 1942 as an organization of athletic directors from preparatory schools in New England. NEPSAC has two forms of membership:
 * Member Schools
 * NEPSAC Leagues

Member schools

 * The Albany Academy
 * Applewild School
 * Avon Old Farms School
 * Bancroft School
 * Beaver Country Day School
 * Belmont Hill School
 * Berkshire School
 * Berwick Academy
 * Blair Academy
 * Boston Trinity Academy
 * Boston University Academy
 * Brewster Academy
 * Bridgton Academy
 * Brimmer and May School
 * Brooks School
 * Brookwood School
 * Brunswick School
 * Buckingham Browne & Nichols
 * Cambridge Friends School
 * Cambridge School of Weston
 * Canterbury School
 * Cardigan Mountain School
 * Carrabassett Valley Academy
 * Chapel Hill - Chauncy Hall School
 * Charles River School
 * Chase Collegiate School
 * Cheshire Academy
 * Choate Rosemary Hall
 * Christian Heritage School
 * Commonwealth School
 * Concord Academy
 * Covenant Christian Academy
 * Convent of the Sacred Heart
 * Cushing Academy
 * Dana Hall School
 * Darrow School
 * Dedham Country Day School
 * Deerfield Academy
 * Derby Academy
 * Dexter School
 * Dublin School
 * Eaglebrook School
 * Eagle Hill School
 * Falmouth Academy
 * Fay School
 * The Fenn School
 * The Fessenden School
 * Foote School
 * The Forman School
 * Gann Academy
 * Glen Urquhart School
 * Gould Academy
 * The Governor's Academy
 * Greens Farms Academy
 * Greenwich Academy
 * Groton School
 * The Gunnery
 * Hamden Hall Country Day School
 * Harvey School
 * Hebron Academy
 * High Mowing School
 * Hillside School
 * Holderness School
 * Hoosac School
 * Hopkins School
 * Hotchkiss School
 * Hyde School
 * Indian Mountain School
 * Inly School
 * Kent School
 * Kents Hill School
 * Kildonan School
 * Kimball Union Academy
 * King Low Heywood Thomas
 * Kingswood-Oxford School
 * Landmark School
 * Lawrence Academy
 * Learning Center for Deaf Children
 * Lexington Christian Academy
 * Lincoln School
 * Loomis Chaffee
 * MacDuffie School
 * Marianapolis Preparatory School
 * The Marvelwood School
 * The Masters School
 * Meadowbrook School of Weston
 * Middlesex School
 * Millbrook School
 * Milton Academy
 * Miss Hall's School
 * Miss Porter's School
 * Montrose School
 * Mooreland Hill School
 * Moses Brown School
 * Nashoba Brooks School
 * New Hampton School
 * New York Military Academy
 * Newman Preparatory School
 * Newton Country Day School
 * Noble and Greenough School
 * North Yarmouth Academy
 * Northfield Mount Hermon School
 * Oakwood Friends School
 * The Park School
 * Phillips Academy
 * Phillips Exeter Academy
 * The Pike School
 * Pine Point School
 * The Pingree School
 * Pomfret School
 * Portsmouth Abbey School
 * Poughkeepsie Day School
 * Proctor Academy
 * Providence Country Day School
 * The Rectory School
 * Renbrook School
 * Rivers School
 * Rocky Hill School
 * The Roxbury Latin School
 * Rumsey Hall School
 * Rye Country Day School
 * St. Andrew's School
 * St. George's School, Newport
 * St. Luke's School
 * St. Mark's School
 * St. Paul's School
 * St. Sebastian's School
 * St. Thomas More School
 * Salisbury School
 * Shady Hill School
 * Shore Country Day School
 * Southfield School
 * South Kent School
 * Stoneleigh-Burnham School
 * Storm King School
 * Suffield Academy
 * Tabor Academy
 * Taft School
 * Tenacre Country Day School
 * Thayer Academy
 * Tilton School
 * Tower School
 * Trinity-Pawling School
 * Vermont Academy
 * The Waldorf School
 * Waring School
 * Watkinson School
 * Westminster School (Connecticut)
 * Westover School
 * Wheeler School
 * Woodward School for Girls
 * The White Mountain School
 * Wilbraham & Monson Academy
 * The Williams School
 * Williston Northampton School
 * The Winchendon School
 * The Winsor School
 * The Woodhall School
 * Wooster School
 * Worcester Academy

Leagues

 * Founders League (FL)
 * Eastern Independent League (EIL)
 * Girls Independent League (GIL)
 * Independent Girls Conference (IGC)
 * Independent School League (ISL)
 * Western New England Prep School League (WNEPSA)
 * Massachusetts Bay Independent League (MBIL)
 * Lakes Region League (LRL)
 * Hudson Valley Athletic League (HVAL)
 * Maine Association of Independent School Athletic Directors (MAISAD)
 * Eight Schools Association (ESA)