This exploratory, mixed-method study examines the role of identity-based student organizations in supporting sexual orientation and gender identity (SOGI) spectrum minority students in higher education. Through convenience sampling, 44 participants were surveyed. Open coding revealed four key themes influencing student engagement: community building, advocacy and leadership, personal and professional growth, and inclusivity and resources. Descriptive analysis showed a significant 1.38-point increase in students' sense of belonging after joining these organizations, suggesting a positive impact on respondents' overall post-secondary experience. Notably, 76.9% of respondents intended to continue their involvement, with graduation being the primary reason for discontinuation. Identity-based student organizations were found to be vital pillars for fostering a sense of belonging, advocating for inclusivity, and promoting personal and professional growth for SOGI spectrum minority students. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://bibliotheek.ehb.be:2222/en-US/products/dissertations/individuals.shtml.]