American Diagnostic Corporation (ADC) manufacturers diagnostic medical products, personal instruments, and accessories for the healthcare industry. Wtih a worldwide presence, ADC has designed, manufactured, and supplied stethoscopes, blood pressure instruments, and other core diagnostic products for more than a quarter of a century. American Diagnostic Corporation mission statement is "To produce feature-rich, ruggedly built, value-priced professional diagnostic medical instruments for the healthcare marketplace while maintaining a stable, dependable employment environment for our associates and trading partners." Based in Hauppauge, New York, American Diagnostic Corporation has sales offices in London and Tokyo. ADC also has quality control and sourcing offices in Taipei, Taiwan, and Ningbo, China, oversee ADC's Asian manufacturing facilities.