Perhaps the most well-known and researched 20th century kit home manufacturer is Sears, Roebuck & Co. Richard Sears, one of the founders, had been a lumber and coal dealer in Minnesota before founding the jewelry company that would grow to become Sears, Roebuck & Co. in Chicago. The mail-order company sold hardware, millwork, roofing materials, and paints and stains along with household and clothing items. Sears’ building materials department was nearly closed in 1906 from lackluster sales, but began to flourish when the company turned to packaging their building materials into home packages. With their new success, the company acquired lumber mills in Mansfield, Louisiana and Cairo, Illinois, as well as a millwork plant in Norwood, Ohio. From 1908–1940, Sears, Roebuck and Co. sold about 70,000 - 75,000 homes through their mail-order Modern Homes program. In 1920 their Cairo plant alone was producing 250 houses a month.
Less well-known is the Gordon-Van Tine Company. Gordon-Van Tine was established in 1907 as a building materials distributor in Davenport, Iowa. It was an outgrowth of U.N. Roberts, a lumber mill and mail-order building supply company founded in 1866. Its location in Davenport, Iowa is strategically situated on the Mississippi River and a major railroad line. Lumber was supplied to the company’s mill via the river and then freight was distributed by rail to the East and West coasts. Sears contracted with Gordon-Van Tine for five years until purchasing their Norwood, Ohio millwork plant in 1912. In 1916 Gordon-Van Tine began offering their own line of Ready-Cut houses. Then in 1919 they contracted with Montgomery Ward to manufacture that company’s new line of kit homes.
Like their mail-order competitor Sears, Roebuck & Co., Montgomery Ward was located in Chicago and offered household goods and clothing delivered by mail. They also began selling building materials, lumber, hardware, and house plans before World War I. However they did not have the manufacturing infrastructure to design, cut, and package an entire house. So in 1919 they contracted their kit house manufacturing to Gordon-Van Tine and began selling the homes under the Wardway Homes name. As a result, many of their homes are identical to those offered by Gordon-Van Tine.
Other less well-known manufacturers were Harris Bros. Company of Chicago; Ray H. Bennett Lumber Co., of North Tonawanda, New York; Lewis Manufacturing of Bay City, Michigan; International Mill and Timber of Bay City, Michigan which sold homes under the name of Sterling Systems Homes; and Aladdin Company, also of Bay City, Michigan. Aladdin Company was one of the longest lived and most successful kit home companies. Founded by brothers William and Otto Sovereign in 1906, the company remained solvent and family-owned until it shut its doors for the last time in 1981.