
The ODP Corporation is an American office supply retailing company headquartered in Boca Raton, Florida. The company has combined annual sales of approximately $11 billion, and employs about 38,000 associates with businesses in the United States. The company operates 1,400 retail stores, e-commerce sites and a business-to-business sales organization.
OfficeMax is an American office supplies retailer founded in 1988. It is now a subsidiary of The ODP Corporation, which is headquartered in Boca Raton, Florida. As of December 2012, OfficeMax operated 941 stores in 47 states, Puerto Rico, the U.S. Virgin Islands and Mexico. In 2012, net sales were $6.9 billion, down from $8.3 billion in 2008.

Quill Corporation is an American office supply retailer, founded in 1956, and headquartered in Lincolnshire, Illinois. It services more than one million small and mid-sized U.S. business customers, with access to over one million assorted products. While over 70% of sales are conducted online, it also employs mail-order and direct sales models. It is considered to be among the largest business-to-business direct markets of office supplies in the United States, but it also sells products in other categories such as technology, cleaning & breakroom supplies, furniture, safety products and professional medical equipment through its Quill Healthcare unit. Quill is owned by Staples, Inc., and is recognized as their most profitable division, accounting for about 25% of the company's net income. Between 1998 and 2009, Quill grew from $500 million in revenues to over $1 billion. It employs approximately 500 people and has twelve distribution centers, led by its president Sergio Pereira.

Staples Business Advantage is the contract division of Staples Inc., providing a membership program for office products, technology products, facilities supplies and breakroom supplies to businesses and institutions. Established in 1993 as Staples Contract and Commercial, the division was rebranded as Staples National Advantage and Staples Business Advantage in 1995. In 2008, Staples acquired Corporate Express, expanding its contract offering to a global market. In 2009, this division was rebranded as Staples Advantage.
Staples Inc. is an American office retail company. It is primarily involved in the sale of office supplies and related products, via retail channels and business-to-business (B2B)-oriented delivery operations.

W.B. Mason is an American business products company headquartered in Brockton, Massachusetts.