UniFirst First Aid Group consists of four business operations: Green Guard, Medique, Quick-Aid and Prestige Packaging. The company is a subsidiary of UniFirst Corporation, which is one of the largest providers of workplace uniforms and protective clothing in the United States. UniFirst Corporation designs, manufactures, personalizes, rents, cleans, delivers and sells a wide range of uniforms and protective clothing, including shirts, pants, jackets, coveralls and lab coats. The company serves over 200,000 customers in the United States, Canada and Europe. Some of its customers include automobile service centers and dealers, delivery services, food and general merchandise retailers, light manufacturers, maintenance facilities and restaurants. UniFirst Corporation has total revenue of more than $1 billion.