ETL Systems, a privately owned UK-based company founded in 1984, designs and manufactures radio frequency equipment. Employing approximately 120 people, the company's products serve teleports, broadcasters, marine, military, and government agencies. Their offerings include rack systems and various radio frequency components such as amplifiers, couplers, remote controllers, and radio frequency over fiber-optic links, along with repair and professional services. In 2023, the company's revenue was less than $50 million.
