Permaletter Sign Company Welcome to Permaletter Sign Company. We understand that your sign is one of your most valuable assets when it comes to reaching potential customers. There simply is NO advertising media that is more cost efficient. Signs have the added advantage of presenting your first impression to your audience where it matters most- at the point of purchase. Custom designed graphics convey your attitude toward your business. Exterior signs, interior ADA and wayfinding signs, vehicle graphics and wraps, banners, decals, routing and engraving, large format display printing and more - each is an opportunity for you to show your professionalism. Quality and value what can we do for you?