This paper consists of a detailed comprehensive analysis of the client company satisfaction of services received at business incubator centers in the United States (USA) and Poland. This paper also includes how clients rated the importance of different services, which were provided to them at two business incubator centers; clients were generally satisfied with the services they received from the business incubators. Some services were not offered at both incubators to the same extent, which created discrepancy in the assessment results. The clients at the CAN-BE business incubator center already received extensive help from volunteers as well as Penn State faculty and students. However, the highest priority is still assigned to further increase those services. The client companies at the TECHNOPARK business incubator center received very limited help from volunteers, faculty, and students, as they assigned a low priority to those resources. The reason for that may be a lack of exposure and lack of understanding of the extremely valuable services provided by an incubation center. The aim of this article is to compare, analyze, and evaluate the operation of the GLIWICE TECHNOPARK and Hazleton, PA, USA incubation centers from a client satisfaction point of view.