Locally owned Custom Sign Company Since 1962. Serving the needs of the business and specialty event industry in the Seattle Metro and Portland, Oregon areas. Omega Graphics & Signs is a manufacturer and installer of many outdoor and indoor sign types including Custom Wall Billboards, Vinyl Signs, Banners, Windows, Fabric. We are famous for keeping the Space Needle. For outstanding signage solutions, look no further than Omega Graphics & Signs LLC. Our sign shop is located in Seattle, Washington. We are a locally-owned business, and we meet the needs of our area's business and specialty event industries. As a manufacturer and installer of custom wall billboards, vinyl signs, banners, and more.