CCO Mortgage services loans made through the subsidiary banks of Citizens Financial Group and loan offices in three additional states. CCO Mortgage is headquartered in Richmond, VA. Its Web site is ccomortgage.com. CCO Mortgage is a division of RBS Citizens, N.A, which is a subsidiary of Citizens Financial Group, Inc., a $159 billion commercial bank holding company headquartered in Providence, R.I. It is one of the 10 largest commercial banking companies in the United States ranked by assets and deposits. CFG’s Web site is citizensbank.com.