Welcome to the official Theta Alpha Chapter website of Sigma Lambda Beta International Fraternity. Established on May 18, 1996, Theta Alpha Chapter of Sigma Lambda Beta Fraternity prides itself in being the first Latino-based Greek Letter Organization on the University of California, Irvine campus.

Sigma Lambda Beta International Fraternity has grown to recognize over 100 collegiate and alumni entities across the United States since its founding on April 4th, 1986 at the University of Iowa. We pride ourselves in upholding the principles of Brotherhood, Scholarship, Community Service, and Cultural Awareness.