Top VoIP Providers in Tokyo

Are you searching for the business VoIP providers in Tokyo? When you bring VoIP in your business functions, you reduce the costs of buying new tools for managing your communication in different ways with users and internally within the team. The VoIP providers in Tokyo hold the hardware and the cloud-based networking system to merge with your working devices and provide you with their best services. VoIP experts ensure faster integration processes without hindering business productivity. Moreover, VoIP services in Tokyo enable you to function with new trends in the market to guide you in maintaining your market position. GoodFirms here has scrutinized a rundown of the top VoIP service providers in Tokyo with their contact details below.

Rankings updated: Jul 5, 2025

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7 Companies

List of Top VoIP service providers in Tokyo

CloudNippon

Complete VoIP Solution

Cloud Nippon is SIP provider in Japan Operated under cal4care Group. Cloudnippon has License from Ministry of Internal Affairs and Communications (‘MIC’) to operate as a telephony service provider .

100% IT Services

100% VoIP Services

< $25/hr

2 - 9

Tokyo, Japan

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Emissary Computer Solutions

Getting IT Together

Since 1997, Emissary has been providing professional and quality IT solution services and support to both foreign and Japanese businesses in Japan. Emissary leads the field with a broad range of expertise and wide scope of service offerings coupled with a growing team of experienced, long-term engineers with bilingual capabilities. ... read Emissary Computer Solutions reviews & insights

100% IT Services

100% VoIP Services

< $25/hr

2 - 9

1997

Tokyo, Japan

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Denphone

VoIP and IP Telephone Solutions

Denphone specializes in voice, video and networking systems. We were one of the first companies to bring the Asterisk IP telephony platform into Japan, and are now one of the market leaders in open source telephony in Japan. Our client base is diversified geographically and covers a wide range of ... read Denphone reviews & insights

100% IT Services

100% VoIP Services

< $25/hr

10 - 49

2005

Tokyo, Japan

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ARTERIA Networks Corporation

VoIP is the first step in reducing costs

We support customers’ business expansion with a full line-up including an IP telephone service that can be used in conjunction with wide-area, high quality line services and a number service that can provide vital telephone cost reductions for business.(※Japanese)

100% IT Services

100% VoIP Services

< $25/hr

2 - 9

Tokyo, Japan

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CIRCLE Cloud Communications

formerly known as IPBX Hosting

CIRCLE is more than just a cloud PBX. CIRCLE realizes strong security against information sharing and solidarity by adopting a robust Mitel system instead of freeware such as Asterisk generally used for cloud phone system.

100% IT Services

100% VoIP Services

< $25/hr

2 - 9

Tokyo, Japan

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TI Tokyo

24/7/365 service and support function

TI Tokyo provides the world's only 24/7/365 service and support function for the NoSQL platform Riak staffed by former Basho engineers. Since 2014, TI Tokyo has been on a mission to support people in more and more ways. Today, TI Tokyo spans the globe with offices in Tokyo, London and ... read TI Tokyo reviews & insights

100% IT Services

50% VoIP Services

< $25/hr

2 - 9

2014

Tokyo, Japan

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Akrin

Smart IT solutions that drive business growth

Akrin株式会社 Akrin is a Japan-based IT solutions company dedicated to helping businesses succeed in the digital age. We specialize in managed IT services, cybersecurity, cloud infrastructure, and IT staffing solutions. Our mission is to deliver innovative, secure, and scalable technology tailored to each client’s unique needs. With a focus on ... read Akrin reviews & insights

20% IT Services

10% VoIP Services

$150 - $199/hr

2 - 9

2024

Tokyo, Japan

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