About ACSI & Membership
Woman teacher or administrator

Strengthening Schools, Equipping Educators

The Association of Christian Schools International (ACSI) is the largest Protestant educational organization in the world. Since 1978, ACSI has advanced excellence in Christian schools by enhancing the professional and personal development of Christian educators and providing support functions for Christian schools.

Those functions include a host of services, including teacher and administrator certification, school accreditation, legal/legislative help, and textbook publishing.

ACSI member schools serve more than 5.5 million students worldwide. Along with a headquarters facility, ACSI has 25 offices in North America and around the globe. Nearly 24,000 schools from over 100 countries are members. The primary financial support for ACSI is from 3,300 US-based schools.

ACSI is a 501(c)(3) religious nonprofit organization.


Membership with ACSI is an excellent choice! By joining this community of Christian educators, you will immediately be connected with resources targeted to meet your unique needs, experts who can help with your special challenges, and peers with whom you can relate.

Find a School
Find a Christian School in your U.S. ZIP Code

Looking for a Christian school in your area? Search our directory of nearly 3,000 ACSI member schools in the United States today!

What does ACSI do?

God has given us the opportunity to touch the lives of more than 5.5 million students worldwide by strengthening Christian schools and equipping Christian educators. We offer multiple services, including teacher and administrator certification, school accreditation, legal/legislative help, and curriculum publishing.

Member Testimonials

The ACSI accreditation process was very helpful. It helped make our program better. Thank you.
Mary Sue Hale, Cross of Hope Lutheran Preschool

ACSI is a blessing in so many ways. It is far and away the finest professional encouragement to our faculty and administrative team. We are so blessed to have ACSI and we know it.
Bruce D. Johnson, Redwood Christian Schools

I am very happy with our affiliation with ACSI. We're a smaller school, and ACSI offers events and suggestions that are doable for us. We are never made to feel unimportant because we are not a large school.

Featured Member Benefit
Professional Development Forum 2016 

You are invited to attend a forum at one of more than 20 sites across the United States from September to November 2016. These forums will provide high quality professional development and the majority of speakers will be live at your site. With interactive and research based workshops, poster sessions, and scheduling which allows you significant time to interact with other educators, we believe that teachers of every grade level will find significant opportunity for professional growth.

Keynote Speaker: Jay McTighe, Understanding by Design

Jay McTighe

Jay McTighe will delve into the concepts of Understanding by Design with ACSI educators at the fall ACSI Professional Development Forums.  As a keynote speaker and workshop presenter, Jay will help Christian educators engage their students' understanding and thinking skills.

Online Community Discussions
Starting a Christian High School

Our church reunited with a larger church they had broke away from 25 years ago. The new larger reunited body is excited about being part of Christian education and want to explore the possibility of starting a Christian high school. Can you suggest any resources we should consult as well as any advice and pitfalls we should be alert for?

Has anyone subscribed to Elementary Librarian? If so, I am curious as to how it worked for you.
Advanced Placement (AP)

Some AP courses make school administrators nervous because of supposed humanism in some subjects and/or Darwinian evolution in some of the sciences. One good thing about the English AP's is that they are based on skills and not a set of required texts. The teacher can set his/her own curriculum (provided quality texts are used, of course).
ACSI Education Foundation
ACSI Education Foundation
We believe that Christ-centered education—acknowledging the redemptive power and providence of God—is one of the most effective educational strategies for bringing meaning to life. For that reason, ACSI established the ACSI Education Foundation with a goal of securing and distributing private support to promote the strategic growth, influence, and effectiveness of Christian schooling worldwide.
Purposeful Design Publications
Purposeful Design
Purposeful Design Publications, the publishing division of ACSI, is committed to the ministry of Christian school education, to enable Christian educators and schools worldwide to effectively prepare students for life. As a publisher of textbooks, trade books, and other educational resources, Purposeful Design Publications strives to produce biblically sound materials that reflect Christian scholarship and stewardship and that address the identified needs of Christian schools around the world.