Joshua Koppel | Assistant Director, IT and Payroll Operations Unit | Chicago Department of Revenue Joshua Koppel serves as Assistant Director of the Information Technology and Payroll Operations Unit of the Chicago Department of Revenue, a government organization dedicated to ensuring efficient administration of tax laws, and adhering to tax regulation standards. Mr. Koppel’s wide-ranging expertise in the information technology sector has helped him to use his technical savvy to bring the organization to new and far-reaching heights; Mr. Koppel launched the building department online, and the Joshuakoppel.com~Site InfoWhoisTrace RouteRBL Check