A.R.K. Ramos Architectural Signage Systems is one of the premier signage manufacturers in the United States. It is a family-owned business that specializes in cast plaques and letters. The company offers aluminum, brass, bronze and stainless steel plaques, as well as manufactures a variety of metal letters, including cast, cut and reverse channel letters in aluminum, brass, bronze and stainless steel. Its clients include Oklahoma City University, PNC Bank, University of Notre Dame, Pizza Hut, Tinker Air Force Base, Girl Scouts of America, Victoria College and Wells Fargo. A.R.K. Ramos Architectural Signage Systems has been operational for more than 60 years and is located in Oklahoma City.