Student satisfaction with a course is important because it can contribute to student retention, and it can also be used as one way to assess faculty effectiveness. This investigative work suggests that course satisfaction among non-traditional, adult students seeking business degrees is positively influenced by giving attention to four specific service-based factors. Based on feedback from 1,725 such students and 214 instructors at five institutions of higher education, a service-based model of course satisfaction is proposed. This model focuses on four manageable variables that are observed as influencing adult students' satisfaction with a business course: relevancy of subject-matter, faculty subject-matter competency, faculty classroom management, and student workload.