HSA Bank is a financial institution that specializes in providing health savings accounts. It is a division of Webster Bank, which is a subsidiary of Webster Financial Corporation. With more than $17 billion in assets, Webster Financial Corporation provides business and consumer banking, mortgage, insurance, financial planning and investment services through over 170 banking offices. HSA Bank offers medical saving accounts to employees of small-scale industries. The bank is affiliated with TD Ameritrade Corporate Services and offers access to stocks, bonds and more than 11,000 mutual funds. It offers debit cards and checks. In addition, HSA Bank provides Internet banking services. HSA Bank is located in Sheboygan, Wis.