Associated Students Inc. is a non-profit student-run auxiliary of Cal State University San Marcos. ASI's mission in concise yet impactful:  to serve, engage, and empower students. ASI is the official voice to express student opinions, foster awareness of student issues, protect the rights and interests of students, and deliver programs which promote a campus climate that meets the educational, social, and cultural well-being of all students.

As a primary entity of campus life, ASI affords students a variety of ways to serve their communities, engage in the diverse life of the University, and empower themselves as a student leaders who leave their legacies at Cal State University San Marcos.