Gsb Inc. is an architecture firm operational for over 30 years. The firm has designed an array of project types, including office facilities, educational facilities, luxury resorts, business hotels, casinos, convention facilities, theaters, condominiums, resort residences and resort amenities. Based in Oklahoma City, Okla., its clientele includes Carnival Hotels & Casinos, First Fidelity Bank, City Of Guthrie, Diamond Lodging & Real Estate, Flag Luxury Properties, Starwood Hotels & Resorts, Sheraton, Edmond Public Schools and Department Of Central Services among others.. Planners