Privately held companies based in Ohio

Sbarro, LLC ( : stylized in all caps) is an American fast food restaurant that specializes in New York–style pizza sold by the slice and other Italian-American cuisine. In 2011, the company was ranked 15th in foreign sales among U.S.-based quick-serve and fast-casual companies by QSR Magazine. In 2008, Sbarro was rated the No. 1 Quick Service Restaurant in the Italian segment by Entrepreneur magazine. However, diners and critics have criticized the quality of the food, with some suggesting a link between food quality and the company's two bankruptcies. Sbarro has over 600 locations in 28 count

Swagelok Company is a $2 billion privately held developer of fluid system products, assemblies, and services for the oil and gas, chemical and petrochemical, semiconductor, and transportation industries.

Vita-Mix Corporation, doing business as Vitamix, is an American company that manufactures and sells commercial and residential blenders. Vitamix was founded in 1921 by William Grover Barnard and is privately owned by the Barnard family. It has been based in Olmsted Township, Ohio, since 1948. It employs more than 700 people, most at its Northeast Ohio headquarters and manufacturing facilities. Vitamix products are sold in over 130 countries.

American computer department store

American restaurant chain specializing in Cincinnati chili

American greeting card company

American manufacturer of industrial forklift trucks