MSA Membership.....   Click on one of the buttons above to access the MSA Membership Roster by the following categories:   Sign Company: Sign Company members of MSA are engaged in the design, sale, lease, manufacture,  installation, or maintenance of custom, commercial, or production signs in Indiana, Kentucky, Michigan, Ohio, western Pennsylvania, or West Virginia.   Sign Wholesaler: Sign Wholesaler members of MSA are engaged in the manufacture of signs or sign components that are available for purchase by sign companies.   Product Manufacturer: Product Manufacturer members of MSA are engaged in the manufacture or sale of materials, components, supplies, or equipment used in the manufacture, installation or maintenance of signs.   Product Manufacturer Representative: Product Manufacturer Representative members of MSA promote, as independent contractors or commissioned sales representatives, products manufactured for use in the sign  industry.   Sign Supply Distributor: Sign Supply Distributor members of MSA are engaged in the distribution of materials, components parts, supplies, or equipment.