Where is the national association of independent schools located? National Association of Independent Schools 1129 20th Street NW, Suite 800 Washington, DC 20036-3425 NAIS Office: (202) 973-9700 Bookstore: (240) 646-7052 Contact Us. Connect with Us. Facebook; Twitter; LinkedIn; Instagram; YouTube; NAIS Connect; NAIS HomeWhat does nais stand for in education? About NAIS The National Association of Independent Schools (NAIS) is a nonprofit membership association that provides services to more than 1,800 schools and associations of schools in the United States and abroad, including more than 1,500 independent private K-12 schools in the U.S. Learn more below!Who are naisa members? NAISA members are national associations of independent schools. A national association is an association which has member schools in more than one province. NAISA is a formal alliance of associations that represent independent schools in South Africa. NAISA members are national associations of independent schools.How do you become a nais member? Membership. Membership in NAIS is open to independent pre-college schools that are operated by nonprofit organizations. To become a full member of NAIS, a school must have operated for at least five years and must be accredited by an accrediting organization approved by NAIS.