ALLENDALE, Mich.--(BUSINESS WIRE)--QST Consultations, Ltd., a clinical research company specializing in clinical study design, data management, statistical analysis, and medical writing services has announced that it is now a partially employee owned company through an Employee Stock Ownership Plan (ESOP). The ESOP transaction was executed on December 18, 2012 during which 36% of company stock was purchased on behalf of QST’s employees.