Tallinn Electrical Engineering Factory ESTEL was founded in 1870.

Today, company develops, manufactures and supplies a broad range of power converter equipment and power semiconductors, focusing on complex technological solutions and production “turnkey” delivery.

In 1974, ESTEL developed and manufactured its first power unit for aircraft ground handling. The company portfolio of aviation products includes frequency converters, airfield rectifiers, combined power units that are compatible with all available types of airplanes and helicopters including Airbus, Bombardier, Boeing etc.

Over the years of operation the company supplied over 6500 aircraft ground servicing units that are successfully operating in many airports around the world.