Longport 

Longport, Inc. develops, manufactures, markets, and sells high resolution ultrasound imaging systems primarily in the United States. It offers EPISCAN I-200, a high frequency ultrasound imaging system that utilizes ultrasound at frequencies between 20 and 50MHz to image the skin and underlying soft tissue. The company's products are used in wound assessment, wound prevention, clinical dermatology, and aesthetics/plastics, as well as in various other applications, including burn assessment, superficial musculoskeletal imaging, and veterinary applications. It also exports its products. The company was founded in 1993 and is based in Chadds Ford, Pennsylvania.