ExecuTrain Corp.Computer software training and support. ExecuTrain Corporation is privately held. International Data Group (IDG) is the majority shareholder. With IDG’s role as the world’s leading provider of information technology services, its international contacts and strength in the U.S. make it an ideal partner for ExecuTrain. Potential benefits to international franchises include: IDG advertising and market research at discounted prices, participation in trade shows at lower costs, and strategic relationships.