Assumption University is a Roman Catholic university in Windsor, Ontario, federated with the University of Windsor. It was founded in 1857 as Assumption College by the Society of Jesus and incorporated by an Act of the Parliament of Upper Canada, receiving Royal Assent, August 16, 1858. It entered an association with an Ontario university as the Assumption College of the University of Western Ontario (1920-1953) then became the Assumption University of Windsor in 1956, before changing its name again in 1964. When the University of Windsor was established as a secular public university in 1963, Assumption University entered into federation with the newly formed university. Assumption University also remains affiliated with Canterbury College (Anglican) and Iona College (Interfaith). Assumption University is a full member of the Association of Catholic Colleges and Universities in Canada (ACCUC). In 2024, Assumption University was admitted as a member of the Association of Catholic Colleges and Universities.

The Congregation of St. Basil, also called the Basilians, is a Roman Catholic clerical religious congregation of Pontifical Right for men. It is an apostolic community whose members profess simple vows. The Basilians seek the glory of God, especially in the works of education and evangelization. The congregation was founded in 1822 in the aftermath of the French Revolution. In the early 19th century the Basilian Fathers' educational and pastoral work brought them to a variety of locations in Canada and the United States. In the 1960s, the priests began to minister in Mexico, and in Colombia in the 1980s.