Eastern Bank Corporation wants to help you count your clams. The holding company owns Eastern Bank, which operates around 100 branch locations in Massachusetts and New Hampshire, and offers retail and commercial products including deposit accounts, investments, and credit cards. Its lending activities are focused on commercial loans and leases, residential mortgages, and consumer loans. Eastern Bank also provides wealth management services through a third-party provider. Insurance subsidiary Eastern Insurance offers personal and commercial coverage, group health and life insurance, employee benefit plans, and 401(k) administration through some 25 locations. Eastern Bank is the nation's oldest and largest mutual bank, boasting almost $10 billion in assets.