Cressey & Company has acquired a majority stake in Dental Services Group. Founded in 1989, DSG is a full-service dental laboratory network with more than 40 laboratories in the U.S. and various offshore partnerships in Asia. The company provides a variety of options to customers in fixed, removable, implant, orthodontics and sleep dentistry products and services. Ropes & Gray served as legal advisor on the transaction, while PwC provided accounting and tax advisory services. Golub Capital provided debt financing and made an equity co-investment to support the acquisition.