Exhibit 21
Subsidiaries of Quad/Graphics, Inc. (Wisconsin)
| Name | Domicile | |
| Chemical Research/Technology Co. | Wisconsin | |
| Child Day Care and Learning Services, LLC | Wisconsin | |
| Duplainville Transport, Inc. | Wisconsin | |
| Proteus Packaging Corporation | Wisconsin | |
| QG C&S, LLC | Wisconsin | |
| QG Retail, LLC | Wisconsin | |
| Quad/Air, LLC | Wisconsin | |
| Quad/Argentina II, LLC | Wisconsin | |
| Quad Claims, LLC | Wisconsin | |
| Quad/Graphics Canada, LLC | Wisconsin | |
| Quad/Graphics Commercial & Specialty LLC | Wisconsin | |
| Quad/Graphics Marketing, LLC | Wisconsin | |
| Quad/Greenfield, LLC | Wisconsin | |
| Quad Logistics Holdings, LLC | Wisconsin | |
| Quad Marketing Holding Corp. | Wisconsin | |
| Quad/Med LLC | Wisconsin | |
| QuadSystems, LLC | Wisconsin | |
| Quad/Tech, Inc. | Wisconsin | |
| Tempt LLC | Wisconsin | |
| Transpak Corporation | Wisconsin | |
| Anselmo L. Morvillo S.A. | Argentina | |
| Quebecor World Buenos Aires S.A. | Argentina | |
| World Color Argentina S.A. | Argentina | |
| QGLA Participacoes S/C Ltda. | Brazil | |
| Quad/Brasil Grafica Ltda. | Brazil | |
| Quad/Graphics Empreendimentos Ltda. | Brazil | |
| Quad/Graphics (BVI) Holdings Ltd. | British Virgin Islands | |
| Quad/Graphics (BVI) Ltd. | British Virgin Islands | |
| Quad/Graphics Investments Ltd. | British Virgin Islands | |
| World Color Halliday Corp. | California | |
| Quad/Graphics Vancouver Corp. | Canada | |
| Quad/Graphics Chile Holding Limitada | Chile | |
| QuadTech (Shanghai) Trading Company Limited | China | |
| Quad/Graphics Colombia S.A. | Colombia | |
| New Diversified Mailing Services LLC | Delaware | |
| New Electronic Printing Systems, LLC | Delaware | |
| Openfirst LLC | Delaware | |
| QG LLC | Delaware | |
| QG Printing Corp. | Delaware | |
| QG Printing II Corp. | Delaware | |
| QG Printing III Co. | Delaware | |
| Quad/Argentina, Inc. | Delaware | |
| Quad/Brazil, Inc. | Delaware | |
| Quad/Creative, LLC | Delaware | |
| Quad/Graphics Holding Company | Delaware | |
| Quad/Graphics Kingsport, LLC | Delaware | |
| Name | Domicile | |
| Quad/Graphics Printing Corp. | Delaware | |
| Quad Logistic Services, LLC | Delaware | |
| Quad/Tech Europe, Inc. | Delaware | |
| World Color Capital II, LLC | Delaware | |
| World Color Northeast Graphics Corp. | Delaware | |
| QuadTech France S.a.r.l. | France | |
| QuadTech Germany GmbH | Germany | |
| QuadWinkowski Deutschland GmbH | Germany | |
| Quad/Graphics Guatemala S.A. | Guatemala | |
| QuadTech Holdings Limited | Hong Kong | |
| QuadTech Ireland | Ireland | |
| Quad/Graphics Luxembourg 1 S.a.r.L. | Luxembourg | |
| Quad/Graphics Luxembourg 2 S.a.r.L. | Luxembourg | |
| World Color Insurance Holding S.A. | Luxembourg | |
| Unigraphic, Inc. | Massachusetts | |
| Quad/Graphics Mauritius Ltd. | Mauritius | |
| Proyeccion Industrial S.A. de C.V. | Mexico | |
| Quad/Graphics Mexico D.F., S.A. de C.V. | Mexico | |
| Quad/Graphics Mexico Holding S.A. de C.V. | Mexico | |
| Quad/Graphics Queretaro S.A. de C.V. | Mexico | |
| Reproducciones Fotomecanicas S.A. de C.V. | Mexico | |
| Q/G Holland B.V. | Netherlands | |
| QG Editores S.A.C. | Peru | |
| Quad/Graphics Peru S.A. | Peru | |
| CRT Sp. z o.o | Poland | |
| Quad/Graphics Europe Sp. z o.o | Poland | |
| Quad Logistics Europe Sp. z o.o | Poland | |
| OOO QuadWinkowski | Russia | |
| QuadWinkowski AB | Sweden | |
| World Color Reinsurance S.A. | Switzerland | |
| QW Ukraine LLC | Ukraine | |
| QuadTech UK Limited | United Kingdom | |