Steiner Leisure Limiteda provider of spa services and products. It also develops and markets beauty products, which are sold at its facilities, through e-commerce and through third party retail outlets, and operate post-secondary schools offering massage therapy. The cruise ships and land-based venues it serves include those of Caesars Entertainment, Carnival Cruise Lines, Celebrity Cruises, Crystal Cruises, Cunard Cruise Line, Hilton Hotels, Holland America Line, InterContinental Hotelss, Kerzner International, Loews Hotels, Marriott Hotels, Nikko Hotels, Norwegian Cruise Lines, Planet Hollywood, P&O Cruises, Princess Cruises, Royal Caribbean Cruises, Seabourn Cruise Line, Sofitel Luxury Hotels, St. Regis Hotels, Thomson Cruises, W Hotels and Resorts and Westin Hotels. As of February 11, 2011, it served 151 cruise ships. In January 2011, it acquired The Onboard Spa Company Limited. In November 2011, it acquired Ideal Image Development, Inc. and the assets of Cortiva Group, Inc.