Regions Bank, operates some 2,000 branches and 2,400 ATMs across a 16-state network in the South, Midwest, and Texas. Its securities brokerage and asset management subsidiary, Morgan Keegan & Company, Inc., provides services in over 450 offices across 16 states.

Regions Bank's parent company, Regions Financial Corporation is a publicly held company based in Birmingham, Alabama, USA, with the corporate headquarters at the Regions Center. A member of the S&P 100 Index, the company provides retail and commercial banking, trust, securities brokerage, mortgage and insurance products and services.

Regions added banking branches in Alabama, Georgia, Tennessee, Florida, South Carolina, Texas, Louisiana, and Arkansas. The name "Regions" was purchased from First Commercial Corporation, the Arkansas Bank that Regions subsequently purchased in 1998. The Louisiana Regions Banks were established in Monroe (Ouachita Parish) by two former members of the Louisiana State Senate, Jamar Adcock and William R. "Billy" Boles, Sr..

In addition to the bank subsidiary, Regions Financial operated a mortgage bank – Regions Mortgage – a trust company, and an investment subsidiary – Regions Investment Company, Inc. (RICI). Later, Rebsamen Insurance Company was acquired, further expanding the range of financial services offered by the company.