Banks in Merrimack, New HampshireList of Companies in Banks category in the city of Merrimack, New Hampshire.Share this page: Santander Merrimack, Banks; 421 Daniel Webster Highway, Merrimack, NH, 03054; (603) 429-4283Santander Bank ATM Merrimack, Banks; 456 Daniel Webster Hwy, Merrimack, NH, 03054; (877) 768-22651