Sheraton Hotels and Resorts | Westin Hotels | Fairmont Hotels and Resorts | Wyndham Hotels & Resorts | Hilton Hotels & Resorts | Voyages Hotels & Resorts | InterContinental Hotels Group | Serena Hotels | Neemrana Hotels | Four Seasons Hotels and Resorts | Thistle Hotels | Orient-Express Hotels | Choice Hotels | Starwood Hotels and Resorts Worldwide | Starwood Club | Sandman Hotels | Radisson Hotels | Oberoi Hotels & Resorts | Virgin Hotels | Steigenberger Hotels | Statler Hotels | Starwood Festival | Starwood Capital Group | Scandic Hotels | Rotana Hotels | Renaissance Hotels | Princess (Hotels & Resorts) | Park Plaza Hotels & Resorts | Mercure Hotels | Jack Tar Hotels |
Hippeau serves on the boards of several public and private companies including Starwood Hotels and Resorts Worldwide, BuddyMedia, and BuzzFeed.
Both American's AAdvantage program and Starwood Hotels' Preferred Guest program have received industry awards, called "Freddie Awards" by Inside Flyer Magazine and its publisher Randy Petersen for providing perks that customers value highly.