Suffolk Bancorp does commercial banking through its wholly owned subsidiary, Suffolk County National Bank (SCNB). SCNB is a full-service, nationally chartered commercial bank. Most of SCNBAos revenue comes from net interest income, and the remainder from charges for a variety of services. SCNB has built a good reputation for personal, attentive service, resulting in a loyal and growing clientele. SCNB operates 29 full-service offices throughout Suffolk County, New York.