ACCREDITATIONS and Memberships


The Independent Schools Association of the Southwest (ISAS) is a non-profit voluntary membership association of independent schools. The Association was founded in 1955 and includes schools located in Arizona, Kansas, Louisiana, New Mexico, Oklahoma, Texas, and Mexico. The Independent Schools Association of the Southwest (ISAS) promotes the highest professional and ethical standards of educational excellence for independent schools in the region and recognizes by formal ongoing accreditation those schools which demonstrate adherence to its standards. As a collective voice of the independent schools of the Southwest, ISAS fosters collegial relations among its member schools and represents their interests.  ISAS, a member of the NAIS Commission on Accreditation, has voluntarily submitted to a rigorous and impartial review of its accreditation program and demonstrated its adherence to the Commission’s Criteria for Effective Independent School Accreditation Practices. ISAS is commended by NAIS for the quality of the Association’s accreditation program for its Member Schools.

The National Association of Independent Schools (NAIS), governed by a board of trustees and staffed by approximately 40 individuals, is a membership organization and the national voice of independent education. NAIS represents approximately 1,400 independent schools and associations in the United States, and affiliates with independent schools abroad as well.  NAIS's mission is to be the national voice of independent schools and the center for collective action on their behalf.

The Houston Area Independent Schools (HAIS) is a non-profit professional association that includes 68 member schools throughout the greater Houston area. Membership in the organization is open to schools accredited by an accrediting agency recognized by TEPSAC (Texas Private School Accreditation Commission) or by a religious organization. The member schools represent a complete range of opportunities for students in early education through grade 12.

The Elementary School Heads Association was established to promote a sense of identity among heads of independent elementary schools, to encourage and support newly-appointed heads of such schools and to provide opportunities for exchange of experiences, problems and successes. ESHA provides a network of independent elementary school heads offering collegiality and support, an annual conference geared specifically for the needs of independent elementary school leaders and their partners, an annual dinner with ESHA colleagues at a member school in conjunction with the NAIS conference, periodic member discussions on topics of interest by video conference, comparative statistics for member schools, a biennial global travel program and a summer online course for heads and faculty in independent elementary schools.

Educational Records Bureau (ERB) is the only not-for-profit member educational services organization offering assessments for both admission and achievement for independent and public schools PreK-grade 12 — including professional development services for interpretation, and links to next steps instruction within our online assessments.

Texas Association Of Non-Public Schools (TANS) is an advocate for non-public education in Texas, representing early childhood, elementary and secondary levels.  TANS has been the chief advocate for private school interests with the Texas Education Agency, the Texas State Legislature, and other state offices.  TANS has effectively lobbied the Legislature, the Governor's office, and other state officeholders to protect the independence of non-public schools and the freedom of parents to choose private education for their children.

The Council for Advancement and Support of Education (CASE) is a professional association serving educational institutions and the advancement professionals who work on their behalf in alumni relations, communications, development, marketing and allied areas. CASE helps its members build stronger relationships with their alumni and donors, raise funds for campus projects, produce recruitment materials, market their institutions to prospective students, diversify the profession and foster public support of education.

The Council for Spiritual and Ethical Education (CSEE) represents a broad network of schools that share resources and commit together to nurture ethically rigorous and spiritually grounded citizens for tomorrow's world. Our mission is to provide leading resources, expert voices, and an active forum for ethical growth and spiritual development in academically rigorous schools.  We help schools focus programs for maximum effectiveness in light of moral, ethical, and spiritual goals.

An independent, co-ed day school for students 3 years old through 8th grade


We believe in a culture rooted in the partnership of Family, School and Church. Get to know us and you’ll catch our spirit.

What we

Striving for the optimum blend of education & faith, sport & art, work & play... we promote each child’s personal best.

Join our

Whether you are a prospective student, parent, or teacher, we hope you’ll consider joining our community. 

Give a

We seek sustainability in a world of shrinking resources and continual change. Your support can make a difference.


We are making room for the future. Presbyterian School is building a new Early Childhood and Lower School building as well as renovating the entire Middle School.

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