Top Companies in the Telephone Transmission Services & Equipment Industry in 2025

ADTRAN, Inc. Altice USA Charter Communications, Inc. Concentrix Dish Network IDT Corporation Comcast Cable West Division National Grid USA Nokia Corporation Premiere Global Services, Inc. AT&T, Inc. Foundever Toshiba America Information Systems, Inc. West Technology Group, LLC Comcast Cable Eastern Division Poly WideOpenWest, LLC BI Incorporated TracFone Wireless, Inc. The Walt Disney Company Vertical Communications Quanta Services, Inc. Westell Technologies, Inc. Charles Industries, Ltd. Cox Communications, Inc. Deutsche Telekom, Inc. Belden, Inc. Harmonic, Inc. ViaSat, Inc. CalAmp Corporation MasTec, Inc. Globalive Communications Corp. altafiber VTech Communications, Inc. Verizon Enterprise Solutions Comcast Corporation 8x8, Inc. Vonage Holdings Corporation Blackboard, Inc. AFL Telecommunications Comcast Cable Southern Division Bell Aliant Bell Canada ConvergeOne Curacao Windstream Communications Guest-Tek Interactive Entertainment Ltd. Ooma, Inc. Consolidated Communications, Inc. Comwave Telecom, Inc. Electro-Tel EastLink Cable Systems ATN International Hawaiian Telcom Aviat Networks MedTel Services, Inc. TDS Telecommunications, LLC Cass Information Systems, Inc. PowerPhone, Inc. GoTo Genesys Airbnb, Inc. RingCentral, Inc. Numa The Alexander Group Viaero Wireless