Preferred Hotels & Resorts is the world's largest independent hotel brand, representing more than 700 distinctive hotels, resorts, residences, and unique hotel groups across 80 countries.

Historic Hotels of America® is the official program of the National Trust for Historic Preservation for recognizing, celebrating, and promoting the finest historic hotels in the United States of America.

Historic Hotels Worldwide® is a prestigious and distinctive collection of historic treasures, including luxury historic hotels built in former castles, chateaus, palaces, academies, haciendas, villas, monasteries, and other historic lodging spanning ten centuries.

Guided by a passion to embrace travel as a force for good, Beyond Green is a global-portfolio of hotels, resorts, and lodges that exemplify sustainability leadership.

Through our global network of experts, PTG Consulting delivers custom-tailored, integrated solutions that inspire, engage, and convert.

A world-renowned leader in providing sustainability services and consulting to destinations, hotels, and tour operators, Beyond Green Travel has spearheaded the global sustainable tourism movement and developed winning strategies for many of the world's top travel and hospitality brands