Diamond Envelope Corporation, located in Aurora in Dupage County, is a woman owned and WBE-certified custom envelope manufacturer. With 95 employees, we manufacture and ship over 1.5 billion envelopes per year. Diamond maintains a tremendous reputation for quality and timeliness. Diamond Envelope is also conscientious of our footprint on the environment; we utilize FSI/SFC paper and water-based inks. For forty years, we have manufactured reliable envelopes to companies near and far.
