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In Illinois, TranSmart operates under its subsidiary name TranSmart/EJM (formerly known as EJM Engineering, Inc.) TranSmart/EJM is one of the largest women- and minority-owned transportation engineering design firms in the Chicagoland region. TranSmart purchased EJM Engineering in 2017 to combine the EJM traditional engineering consulting services with the advanced technology services niche of TranSmart. Together, TranSmart can service more clients and more industries, while preparing for innovative changes in the transportation industry including connected/autonomous vehicles.