TSTA/NEA is the largest democratically run, member controlled, professional organization in the world. The staff works with the legislature and government agencies, such as the State Board of Education; provides legal assistance and member advocacy; disseminates information to members and the media; provides business and technology services; and offers affiliate and leadership development.

Founded by educators for educators, ATPE is the leading educators’ association in Texas and the largest independent educators’ association in the United States. As a member-owned and member-governed professional organization, ATPE exists to serve the needs of Texas teachers, paraprofessionals, administrators and all public education employees and fights for our schools on the local, state and national levels.

The American Federation of Teachers, an affiliate of the AFL-CIO, was founded in 1916 and today represents 1.7 million members in more than 3,000 local affiliates nationwide. Five divisions within the AFT represent the broad spectrum of the AFT's membership: pre-K through 12th-grade teachers; paraprofessionals and other school-related personnel; higher education faculty and professional staff; federal, state and local government employees; and nurses and other healthcare professionals. In addition, the AFT represents approximately 80,000 early childhood educators and nearly 250,000 retiree members.

The Texas Classroom Teachers Association is the leading teacher association in Texas. We represent educators statewide, including public school teachers and others directly involved in classroom teaching or teaching support, including librarians, counselors, coaches, teacher aides and substitutes.

TCASE has served special education leaders in this capacity since the organization's birth in 1960. As a private, non-profit professional association, our singular mission is to work on behalf of our members to help them achieve in their profession.