OPPA is a Non-profit association consisting of Suppliers and Distributors of imprinted promotional products. OPPA stands for Ohio Promotional Professionals Association. They host an annual trade show to promote membership products/ services.This association offers a chance for suppliers, distributors and direct houses to share their ideas and views. This organization is a regional affiliate of PPAI and is located at Akron of Ohio. A lot of useful information related to the promotional industry is included in the “Resource” section.
Source: http://www.oppagroup.com/