General Info

Since 1974, mdi Inc. has been serving the international marketing area. Located in La Verne, Calif., the company specializes in plastic sleeves for collectors. It offers an assortment of products that include polypropylene sleeves, backing board, rigid sleeves/accessories and coins collections, to name a few. In addition, the firm provides a variety of small business/legal/professional services, from network design to implementation, maintenance and support/litigation/estate planning/consulting services. It also offers a range of collectible sports cards for toy collectors.