Adir Adir Corporation is a leading manufacturer and supplier of practical, affordable, and durable filing supplies and storage solutions. The company is committed to meeting the evolving needs of customers with quality products designed for professionals in the fields of engineering, drafting, construction, architecture, and graphic arts. Adir's ever-expanding range of user-friendly, innovative products include mobile files, accessories, and storage systems for blueprints, plans, drawings, maps, and other oversized documents.