Concordia Seminary is a seminary / theological school institution in Clayton, established in 1839. Concordia Seminary is a Lutheran theological seminary in Clayton, Missouri, founded in 1839 to train pastors, deaconesses, missionaries, and church leaders for the Lutheran Church–Missouri Synod. It offers graduate degrees including Master of Divinity, Master of Arts, and doctoral programs, with 591 students and a $234.8 million endowment.