E. F. Johnson was an American entrepreneur and inventor known for founding the E. F. Johnson Company in 1923. The company specialized in manufacturing communication equipment, particularly two-way radios and other wireless devices. Johnson's innovations contributed significantly to the development of radio technology, making communication more accessible for various industries. Under Johnson's leadership, the company became a key player in the radio communication market, serving sectors such as public safety and transportation. E. F. Johnson's legacy continues through the ongoing advancements in wireless communication technology, which have evolved from his early inventions.