- Global Communications
- Global Communications Group
- Global Connect
- Global Digital Systems Corp
- Global Networx
- Global Telemann System Inc
- Goldcom Inc
- Golden West Technologies
- Grand Slam Telecom
- Granite Communications Inc
- Gray Communications
- Group 10 Technology Inc
- GTE Customer Network
- Guardian Communications Corp
- Gute Telephone Svc
- H & S Telephone Svc LLC
- H B Distributors
- H B Distributors
- H D Telecom Inc
- H Moeller
- H S Telecom Inc
- Halyon Communication Inc
- Halyon Communication Inc
- Hampton
- Hampton Roads Communication
- Hampton Telephone Systems
- Hampton Telephone Systs
- Hands Free Telephone Headsets
- Hart Communications
- HCI Business Telephone Systs
- HCI Technologies
- Hcr Telecom Svc
- Headset Solutions
- Headsets Direct Inc
- Heartland Technology
- Heat Seeker Technology Partnrs
- Heer Electronics
- Heinle Telephone Systems
- Hello Communications
- Hetlage Communications
- Hi Country Wire & Telephone
- Hi Country Wire & Telephone
- High Country Telephone Svc
- High-Tech Telecom
- Highlands Telecomm Svc
- Hinz Phone Equipment
- Howard Security Plus
- Hoyt Communications
- Hughes Business Telephone Inc
- Huntel Communications Inc
- Huskerland Communications
- Hybridtelephone
- Hyde Telcom Partners Inc
- Hyde Telecom Partners Inc
- Hyperedge Corp
- Hytec Telephone
- I P Dialog Inc
- Icg Telecom
- Idea! Communications Group Inc
- Ideacom ECSI
- Ideacom Mid America
- Ideacom Mid America
- Ideacom Mid-America
- Ideacom Mid-America Inc
- Ideacom Mid-Atlantic
- Iem Inc
- Ilink Of Minnesota
- Image Ware USA
- Imagine Technologies
- In Flow Inc
- In Syst Inc
- In Touch Solutions
- In Touch Solutions
- Independent Communication
- Independent Communications
- Independent Communications Inc
- Independent Communications Inc
- Information Technology Core
- Information Technology Svc
- Information Tools
- Infotel Systems Inc
- Infotel Systems Inc
- Ingenia Solutions
- Innocom Telecom
- Innovative Communications Inc
- Innovative Communications Inc
- Innovative Systems LLC
- Inpath Devices
- INS Technologies Inc
- Intecom
- Integrated Network Svc
- Integrity Telecom Inc
- Intellisys
- Intellitech
- Intellitech
- Inter Voice Brite
- Inter-Tel Data Net
- Inter-Tel Inc
- Inter-Tel Inc
- Inter-Tel Inc
- Inter-Tel Inc
- Inter-Tel Network Svc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Inter-Tel Technologies Inc
- Interact Inc
- Interactive Communication
- Interactive Communications
- Interactive System Svc Inc
- Interactive System Svc Inc
- Interconnect Systems
- Interconnect Telephone Co
- International Communications
- International Network Svc
- Interstate Communication Svc
- Intervoice
- Intouch Solutions
- Iowa City Telecommunications
- IPN Integrated Pro Networks
- Iptimize Inc
- Iridigm Display
- Iron Mountain Communications
- Island Communication Co
- ITC Systems
- Itcs
- IX2 Networks
- J & J Communications
- J & T Phone Svc
- J & T Phone Svc
- J & T Phone Svc
- J Allen Communications
- J Allen Communications
- J C Communications Inc
- J M Communications
- J-Mar Security/Busines Telepn
- Jack Man
- Jack's Telecom
- Jack's Telecom
- Jamestown Communications
- Jan Communications & Elec Co
- Jar Dic Phone Inc
- Jcomm Group
- Jefferson Communications Inc
- JEM Communications Inc
- Jett Enterprises
- Jett Enterprises
- JMB Telecom
- JMR Communications Inc
- Jonas Business Telephone Comm
- Joyner Telephone
- JSL Communications Systems
- Juniper Telecom
- Just Communications
- Just Communications
- Kam Rock Telecom
- KCG Communications
- Kellee Communications Group
- Ken Tel Communications Svc
- Key Telecommunications
- Key Telephone & Security
- KGB Communications LLC
- Kidwell Technologies
- Komteligent Inc
- Koss Communications
- Koss Communications
- Kriskor Inc
- Krone Co
- Krone Inc
- Krone Inc
- KSB Telesound
- KTR Inc
- KTR Inc
- L & E Assoc
- L C & S Communications
- LA Plata Telephone Systems
- LA Plata Telephone Systems
- Lake Area Communications
- Lan Tel Svc
- Lan Tel Svc Inc
- Lan Tel Svc Inc
- Lan Telephone Inc
- Lantana Communications
- Laramie Telephone Exchange
- Larimer Telephone
- Lawrence Communications
- Lea Com Corp
- Leadcom USA
- Leading Communications Design
- LEC Sound & Communications
- LEI Communications
- LEI Communications
- Lemar Business Systems
- Lexycom Technologies
- Light Speed Technologies
- Lightbit Corp
- Lighthouse Communication Svc
- Lightspeed Ip Inc
- Lines Of Communication Inc
- Live Wire Communications
- Lockridge Communications
- Lodge Tech Communications
- Lodge Tech Communications
- Loewenberg Technologies Inc
- Logan Communications
- Loop Communications
- Lozon
- LTS Luna Telephone Svc
- M & N Communications
- M Phase Technologies Inc
- M/A Com
- Madison River Communications
- Marconi Communications
- Maricopa Tel Inc
- Maricopa Tel Inc
- Marketing Installation Systems
- Marketrace LLC
- Marketrace LLC
- Martin Telephone
- Martin Telephone
- Maryland Telephone
- Matrix Networks
- Maulin Inc
- Maverick Telephone Systems
- Max Communications
- Max Communications & Data Svc
- Maxima Corp
- Mbt
- Mc Enroe Voice & Data
- MCS Business Telephones
- Med-Pat Inc
- Mega Communications Inc
- MEGAPIN.COM
- Mel-Tel
- Merriman Curhan Ford & Co
- Metrocomm Inc
- Metrotel Communications
- Metrpolitan Services
- Micor EDC Inc
- Microtalk Technologies Inc
- Microtech-Tel
- Mid Atlantic Telephone Inc
- Mid Michigan Cellular
- Mid Oregon Telephone
- Mid-America Communications
- Mid-Atlantic Business Comm
- Mid-Atlantic Business Comms
- Mid-State Communications
- Midwest Communications Corp
- Midwest Headsets
- Midwest Teletron Inc
- Midwest Voice & Datacom
- Miles Communications
- Miller Communications Inc
- Mills Phone Svc
- Minnesota Telephone Installers
- Minntel
- Mitel Communications Systems
- Mitel Telephone Systems Inc
- Mobitel Inc
- Modern Communication Systems
- Morgantown Phone Ctr Inc
- Morgen Industries
- Morse Communication
- Mountain Chime Telephone
- Mountain Resort Communications
- Mountain States Networking
- Mountain States Telecom Inc
- Mountain West Telecom
- Mountain West Telecom
- MTC Systems
- MTC Systems
- Mtc Systems
- MTC Systems
- MTC Systems
- Music Telco
- My Phone Man Inc
- Myers Voice & Data
- NACR
- NACR Inc
- National Communications Svc
- NATIONAL Electrical Mfr Assn
- Nationwide Communications Com
- NEC America Inc
- NEC Business Network Solutions
- Net-Tech
- Netco Inc
- Netcom
- Netharmonix
- Netsian
- Netsian Technologies Group
- Network Access Products
- Network Architects
- Network Installation & Design
- Network Integrated Systems