CBRE Group, Inc. is an American commercial real estate services and investment firm. The abbreviation CBRE stands for Coldwell Banker Richard Ellis. It is the largest commercial real estate services company in the world. The firm is ranked 128th on the Fortune 500 and has been included in the Fortune 500 every year since 2008. CBRE serves more than 90 of the top 100 companies on the Fortune 100.