The ING Group (Dutch: ING Groep) is a Dutch multinational banking and financial services corporation headquartered in Amsterdam. Its primary businesses are retail banking, direct banking, commercial banking, investment banking, wholesale banking, private banking, asset management, and insurance services. ING Group traces its roots to two major insurance companies in the Netherlands and the banking services of the Dutch government. In 1991 the insurance branch of Nationale-Nederlanden and the banking branch of "NMB Postbank Groep" merged. NMB stands for "Nederlandsche Middenstands Bank".