Four companies produced Mark V diving helmets for the US Navy: Morse Diving Equipment Company of Boston, Massachusetts, A Schrader's Son of Brooklyn, New York, Miller-Dunn Diving Co. of Miami, Florida and Diving Equipment and Salvage Co. (later Diving Equipment Supply Co.) of Milwaukee, Wisconsin.
Kirby Morgan dominates the new helmet market, but there have been other notable manufacturers including Savoie, Miller, Gorski and Swindell.