Brastel International Calling Service
- Provides discounted international telecommunications services and phone cards.
- http://www.brastel.com/Pages/eng/main/

Todentsu Corporation
- Lays cable systems, designs and creates digital exchange equipment, wireless transmission and related electrical equipment.
- http://www.todentsu.co.jp/

World Link Japan J-Call
- Offers a discounted direct dial international and domestic telecom service from fixed and cellular lines to residents of Japan.
- http://www.j-call.jp/

ITX Corporation
- Active in mobile and other communications, network services, satellite/cable TV broadcasting and content, electronics and life sciences.
- http://www.itx-corp.co.jp/index_e.html

Infocom Corporation
- Provides integrated telecommunications services, consulting on telecommunications systems, telecom hardware, software, sales, and data processing services.
- http://www.infocom.co.jp/

Index Corporation
- Producer of media and content for mobile phones.
- http://www.indexweb.co.jp/

Gigno System Japan. Inc.
- Engaged in internet-based systems development and image delivery, and telecommunications infrastructure.
- http://www.gignosystem.com/

Hikari Tsushin Inc.
- Active in mobile communications, products and services for the corporate market, insurance service, mobile media and internet and venture capital.
- http://www.hikari.co.jp/

AcTel
- Provides a variety of international call services from Japan, including IP phone (PC-to-Phone), prepaid cards, and subscription telcom calls.
- http://actel.jp/e-index.php

Aiphone Co., Ltd.
- Maker of communication systems for business and homes.
- http://www.aiphone.co.jp/english/

I-Tel Long Distance
- Offers international callback services, calling and debit cards, and call forwarding. Based in Denver with Osaka branch office.
- http://www.i-tel.com/homee.html

Wireless Tsukamoto
- Cellular repeater, CCD camera and mobile phone hands-free set manufacturer.
- http://www.wtw.jp/

Commuture
- Telecommunications installation work including transmission cable, wireless and mobile communications.
- http://www.commuture.com/english/

Osaka Denwa International Call
- Low rate international phone service from Japan.
- http://www.osaka-denwa.com/

AT&T WorldNet Service
- Homepage for Japanese subsidiary of AT&T, with information on services, phone cards, and net access.
- http://www.att.ne.jp/indexe.html

Sangikyo
- Information about one of Japan's largest telecom engineering service providers.
- http://www.sangikyo.com/