Just saw this cool site. Emporis

Emporis is one of the biggest providers of information regarding the building market and is one of the most respected, widely utilized sources for research, ratings, and analysis on information concerning buildings. Its content and research results are accessed by millions of people through navigation devices, websites, publications, and television programs. The customers of Emporis come from all over the world and use the wide set of products offered by the company.

Some of its customers include Citibank, WSJ and Fortis Bank.