- Smart Communications, Inc.
 - Provider of wireless services in Philippines. Includes postpaid, prepaid, and wireless broadband. - Globe Telecom
- Provides mobile communications (GSM) including GenTXT, handyphones, wireline services, and broadband Internet services.
- Philippine Long Distance Telephone Company (PLDT) (1)
- BellTel
- Offers data and voice services, broadband and DSL Internet access, and cable TV. Also provides private networks and customised telecommunication services for businesses.
- Philcom Corporation
- A Philippines-based company. Includes voicemail, long distance telephone, and Internet service.
- Broadcast World Philippines
- Installs and services all technology for radio and television stations.
- Ericsson
- Provides news, events, and product information.
- Silicon Systems Corporation
- Radio communication system for voice, data, and remote telemetry.
- SEAC Telecoms
- Provides information technology and business solutions, PBX/KTS, voice mail, e-business, internet/intranet, web design, web programming and applications development.
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