Century 21 – Destefano Best Real Estate Agency Address: 46 Pleasant St, Concord, NH Phone: (603) 224-3377 Website: c21nh.com/ 2nd Place Cowan & Zellers Address: 30 South Main Street #103, Concord, NH Phone: (603) 225-3333 Website: cowanandzellers.com 3rd Place April Dunn & Associates Address: 154 N. Main St., Concord, NH Phone: (603) 344-9605 Website: