Trivago, founded in 2005 and operating in over 27 countries, is a hotel price comparison platform with a revenue of over 50 million euros in 2011, providing users with an average saving of 32%. The platform integrates ratings from various hotel websites and directs consumers to partner booking pages, earning commission from referrals. The company aims to expand its presence in the US market through a three-tiered approach involving online marketing, offline advertising, and strategic acquisitions.