(October), and red and green for Christmas. Project proposed building Tenants As of 2012, Bank of America maintains a large branch in the building's lower lobby. The building's largest tenant is Bryan Cave, a law firm based in St. Louis. Karbank Real Estate Company, a prominent industrial development and brokerage company, occupies the 39th floor. Great Plains Energy and subsidiary Kansas City Power & Light Co. have taken space in the building in 2009. Tenants are provided security by EHI through Securitas AB. See also Architecture in Kansas City List of tallest buildings by U.S. state and territory References External links First National Bank History "One Kansas City Place" (January 31, 1988) Kansas City Star pp. 19J: 3 Linda Chesney Kaut (December 17, 1989) "Q: What is the Tallest Building in Kansas City?" Kansas City Star pp. 6 Diana Dawson (December 19, 1984) "Up to date in KC, and getting taller too." Kansas City Star Section C Office buildings completed in 1988 Skyscraper office buildings in Kansas City, Missouri Downtown Kansas City 1988 establishments in Missouri