For the BOK Center River Spirit Lounge project, Manhattan Construction Company, in a joint venture with Flintco, known as Tulsa Vision Builders, served as construction manager, GH2 was the architect, Wallace Engineering, and Olsson Engineering were the engineers. The BOK River Spirit Lounge was a 5,000-square-foot renovation to the existing BOK Center that added a new bar and lounge with a 1,000-square-foot private entrance.