Located in Farmingville, N.Y., Teachers Federal Credit Union is one of the largest credit unions operating in Suffolk County in the state. The company offers a wide range of services, including checking and savings accounts, nationwide network of ATMs, Internet banking, holiday and vacation club accounts, share certificate and boat loans, and business and investment services. It also deals in various loans, such as vehicle and real estate loans, signature loan and credit card options. The union additionally provides a variety of mortgages, including first, jumbo and second mortgages, convertible and adjustable mortgage, interest first and no-income mortgages, and second home financing. Its Web site provides information on interest rates available in the market, such as savings, vehicle, Visa, vehicle and home equity. Teachers Federal Credit Union also provides various online applications and forms, including mortgage and banking applications, credit card forms, and vehicle and consumer loan applications.