Darius Juozas Mockus is a businessperson who has been at the head of 11 different companies and currently holds the position of Chairman at Stumbras AB, Chairman & President at MG Baltic UAB, Chairman at Apranga APB, Chairman for UAB Mitnija and President at MG Baltic Investment UAB (which are all subsidiaries of MG Baltic UAB), Chairman of Mineraliniai Vandenys UAB, Chairman & General Director at MG Baltic Trade UAB, Chairman & President at Koncernas MG Baltic UAB, Chairman at MV Group Production AB and Chairman-Management Board at Gubernija AB.

He is also President at Lithuanian Association of Trade, Industry & Craft Chamber and on the board of 5 other companies.

He received an undergraduate degree from Vilnius University.