As a current IRIS user, you understand the value of accessing and disseminating information quickly. Below are just a few of the additional services Santander. By logging into Santander Online Banking, you acknowledge that you have read, understand, and agree to the Customer Agreement and Disclosures for. BOSTON, July 24, – Sovereign Bank, N.A., a wholly-owned subsidiary of Santander Holdings USA and one of the 25 largest retail banks in the United. Toggle navigation Sovereign Bank. For more information about Santander, visit http: Views Read Edit View history. Sovereign Bank was founded by experienced commercial real estate bankers and continues to support Texas's commercial real estate industry. Retrieved 3 January Information Reporting Custom Balance Reporting EDI CD Rom Statements and Images Email Alerts.