A Systems Communications Company, (ASCC, Inc.)
- Network integrator of data, voice and video systems for enterprise, organizations and government.
- http://ascc-inc.com/

Northeast Communications Group
- Specializing in the installation of communication equipment and cable and fiber infrastructure from single-building structures to campus environments.
- http://www.necgrp.com/

Reliable Telephone Service
- Sales and service on Comdial and Avaya along with wiring. Gap
- http://www.reliabletelephoneservice.com/

BlueStream Technologies LLC
- Buys and sells used telecommunications and networking equipment including: key, PBX and IP systems, circuit cards, telephone sets, voicemail systems, routers, switches and related equipment.
- http://www.bstrm.com/

ElectSys
- Installation of telephone and voicemail systems as well as VOIP dial tone service and data networks including fiber optics and wifi. Located in Manheim.
- http://www.electsys.biz/

Telephonix Inc.
- Offering a full line of telecommunications products, voice and data cabling, system moves adds and changes, installations with 24 hour service. Pittsburgh
- http://www.telephonix.com/

Roberts Communicatios Services Inc.
- Sales, installation, maintenance and repair of a range of brand name telecommunications equipment. Ambler
- http://www.robertscommunications.net/

A A C Telephone and Security
- Provides telephone systems, voice and data cabling, security, access control, cctv and dvr systems.
- http://www.aacresources.com/

GST Corporation
- Supplier of telecommunications systems including PBX, voicemail, data integration, and VoIP. Based in Allentown and services eastern Pennsylvania, New Jersey, and Virginia.
- http://www.gstonline.com/

RF Communications
- Provides cabling services, PBX and Voice Mail system installations in the Philadelphia area.
- http://www.rfcomm2k.com/

Dagostino Electronic Services, Inc.
- Designs, sells, installs and maintains communications systems for voice, data and video networks. Based in Pittsburgh.
- http://www.descomm.com/

Prime Communications, Inc.
- Provider of high end IP Telephony based business phone systems and network/enterprise services. Pittsburgh
- http://www.primecomm.com/

Americom, Inc.
- Supply and install telephone and wiring systems for both small business and residential use . Also installing security systems. South Park
- http://www.americominc.net/

Gateway Communication Services
- Cable installation, located in Newtown, PA.
- http://www.gatewaycs.com/

Snider Communications
- Wireless network installation service. Mobile computing and network solutions.
- http://www.snidercommunications.com/

TeleDATA Systems Corp.
- Telecommunications and data cabling design and installation.
- http://www.teledatasystems.com/

PhoneAmerica Corp.
- Telephone systems, Voice processing, VOIP, T-1, ISDN, Data and Voice networking, in the Delaware Valley.
- http://www.phoneam.com/

North American Telecommunications
- Specializes in voice and data network cabling, business communications systems along with PBX and Key sales, covering the Pittsburgh, PA and surrounding areas.
- http://www.natctelecom.com/

Corporate Communications
- Business telephone systems, computer networking and cabling for New Jersey, Pennsylvania and Delaware.
- http://www.corporatecds.com/