It is the world 's second - largest conglomerate . U.S.-based Stiefel is world 's largest independent dermatology company . GSK Group acquire total share capital of Stiefel for $ 2.9 billion . In a statement Monday , the two companies said the deal would create a new world-leading specialist dermatology business with combined revenues of $ 1.5 billion . Global business units operate under Stiefel brand within GSK Group .
It is the world 's second - largest conglomerate . U.S.-based Stiefel is world 's largest independent dermatology company . GSK Group acquire total share capital of Stiefel for $ 2.9 billion . Global business units operate under Stiefel brand within GSK Group .