MFJ Enterprises

MFJ Enterprises, founded in 1972 by Martin F. Jue, is a manufacturer of a broad range of products for the amateur radio market. They specialize in station accessories, such as antenna tuners and antenna switching equipment. MFJ now manufactures more amateur radio products than any other company in the world.
Representative products have been described in QST Magazine and CQ Amateur Radio.
The initials "MFJ" in the company name are those of the founder, Martin F. Jue (ham radio callsign K5FLU).
Subsidiaries.
MFJ owns five subsidiary companies: