IEH Corporation is a manufacturer of connectors for electronic systems. These connectors and other components are used mainly for military and medical applications. The company employs a technology known as the "hyperboloid connector," which is explained in a very helpful video on the company's website. The company is based in Brooklyn, NY and was founded by Louis Offerman in 1937. Today, Michael Offerman is the company's CEO and largest shareholder. Notably, value investor Paul Sonkin's Hummingbird Management, LLC owns 13.2% of the company.