Tweet London Marriott Hotel Grosvenor Square Grosvenor Square, England, United Kingdom, W1K 6JP Go to Venue website Advertisements Upcoming events at this venue No upcoming events at this venue. Why dont you add a conference (Free) and we'll promote it on our social networks. Want to give it a go? Click here Post navigation Previous Previous post: Impact Factory | Professional Development | Training and CoursesNext Next post: voco Orchard Singapore, an IHG Hotel