The Printhouse is an American company headquartered in the Chicago suburb of Palatine, Illinois.^[1] The Printhouse was formed when a company, Qualay International changed names in 1995 to The Printhouse. They are a provider of commercial printing and paperboard packaging. The Printhouse has designed a unique, fully online proofing system. This proofing method includes QR codes.

Publishing, logistics, manufacturing, educational testing, church pension, transportation, automotive parts, fitness, oil & refining, advertising, heating and air-conditioning, financial planning, insurance, legal, accounting, wedding gowns, floral wholesale, banking.