Saint Martin's Abbey's primary apostolate is Saint Martin's University, founded in 1895. Saint Martin's University is one of two Roman Catholic Universities in Western Washington and is located about fifty miles south of Seattle. A Benedictine school, the university welcomes students from all faiths and persuasions. The monks work in a variety of jobs in the school from faculty to staff positions.

The Abbey continues to serve the archdiocese in parish work, staffing a few parishes in the area and assisting on weekends in several others.