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Gallo Commmunications Group is a Pleasanton, CA-based company in the Telecommunications sector.
Verizon Communications Inc., commonly known as Verizon, is an American multinational telecommunications conglomerate and a corporate component of the Dow Jones Industrial Average.
Northern Digital Inc. is a Waterloo, ON-based company in the Telecommunications sector.
Gewalt Hamilton Associates is a Vernon Hills, IL-based company in the Telecommunications sector.
roseville telephone museum is a Roseville, CA-based company in the Telecommunications sector.