Private equity firm Kelso & Co., which owns PSAV Presentation Services, signed an agreement to acquire Swank Audio Visuals LLC. Kelso executives plan to merge the two companies when the deal is finalized. Each company provides audiovisual and event technology services in the meetings and event industries. Swank currently serves as a preferred outsourced service provider to more than 375 hotels and resorts in the U.S., Canada and the Middle East. For the immediate future, both companies will operate under their existing brands; more branding details will be forthcoming after the deal closes, likely in November.