The St. Louis Campus of Aquinas Institute of Theology is the institution's sole current location, serving as a Catholic graduate school and seminary in the Dominican tradition. Sponsored by the Dominican Province of St. Albert the Great, it emphasizes Thomistic studies, the pursuit of truth (Veritas), and preparation for preaching the Gospel in word and deed. Adjacent to Saint Louis University, the campus integrates rigorous academic theology with practical pastoral formation, welcoming friars, priests, vowed religious, and lay students for advanced ministerial training.
The curriculum centers on Dominican values, Scripture, patristics, sacramental theology, spirituality, moral theology, and contemporary issues like health care ethics, fostering leaders for the Church's mission worldwide.