SESP Group was established in 1986, initially specializing in the design and manufacture of a wide variety of electronic devices for surveillance and countermeasures applications.

In 1997 the company produced its first series of cellular telephone jammers. Following the great market success of these early jamming systems, the company refocused its primary efforts with the goal of producing the world's most powerful and reliable RF jammer devices.

Today, SESP specializes solely in the design, development and manufacture of RF jamming equipment and systems.

The company offers a very wide range of state-of-the-art, high-power, multi-band jamming solutions to suit all types of locations and security applications. SESP prides itself on its superior products, including tailor-made jamming systems to suit the specific needs of military and police anti-terrorist personnel.