Top Call Center Services & Voice Services in Japan

Ratings Updated: September 16, 2026

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16 Companies

Country: Japan

List of the Top Japan Call Center Companies & Voice Services

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Assistring LLC

5.0 16 reviews

Verified

$1,000+

< $25 / hr

50 - 249

Serves Japan

Services provided

20% Call Center Services

30% Back Office Outsourcing

30% Customer Service Outsourcing +2 services

10% AI Agents

10% HR Outsourcing

Assistring LLC is a proficient provider of Call Center Services, specializing in both Inbound and Outbound Call Center operations, and Customer Support Services. Across reviews, 100% of clients commend their operational efficiency, professionalism, and alignment with company values. Notably, 80% of reviewers highlight their ability to enhance customer satisfaction and integrate seamlessly with existing business processes.

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1 of 1 reviews is 5 stars

$10,000 – $49,000 avg. project cost

Reviewed 1 time in the past 6 months
Recent reviews of Assistring LLC reflect a strong overall sentiment, highlighting their exceptional customer service and efficient project management. A client from Royal Nawaab commended their ability to reduce call drop rates from 40% to under 3%, attributing success to well-trained staff and prompt communication. The team was noted for being available year-round, demonstrating a commitment to client needs. No areas for improvement were identified, underscoring high client satisfaction.
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10 of 11 Call Center Services reviews are 5 stars

1 new review for Call Center Services in past 6 months

$10,000 – $49,000 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Services for Utility Company
5.0 — Assistring LLC provided a utility company's customer service and call center operations support. The team managed incoming customer inquiries, offered technical support, and handled complaints. Read more
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More responsive than most other service providers

Assistring LLC is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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United States (6) England (5) Poland (1)

This provider is fluent in 22 languages:

Arabic

Dutch

English

Finnish

French

German

Hindi

Italian

Japanese

Javanese

Korean

Panjabi

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This provider is available in 2 time zones:

Pakistan Lahore Time (PLT)

Eastern European Time (EET)

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TDCX

4.8 12 reviews

Verified

$100,000+

Undisclosed

10,000+

Yokohama, Japan

Services provided

10% Call Center Services

50% Customer Service Outsourcing

20% Sales Outsourcing +2 services

10% Business Consulting

10% Content Moderation Services

TDCX is a distinguished provider of Contact Center Services, excelling in Customer Support Services and managing both Inbound and Outbound Call Centers. With a 95% satisfaction rate, clients commend TDCX for their scalable solutions, proactive approach, and exceptional customer care capabilities. Over 80% of reviewers highlight their effective project management and seamless integration into existing operations.

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6 of 6 Call Center Services reviews are 5 stars

$1,000,000 – $9,999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Customer Deployment for Consumer Products Company
5.0 — TDCX supports customer experience deployment services for a consumer products company. They are also tasked with maintaining their own unique internal culture. Read more
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Average Project Cost Breakdown

$1,000,000 to $9,999,999 (2) $200,000 to $999,999 (1) $10,000,000 + (1)

What Clients Have Said
Clients have expressed a generally positive sentiment regarding TDCX's cost and value for money. Feedback highlights their ability to deliver high-quality services while maintaining competitive pricing, as noted by a vendor manager who emphasized TDCX's best value in terms of cost and quality. However, some clients suggested that pricing could be more competitive. Overall, TDCX is regarded as a reliable partner that provides significant value, often exceeding expectations in service delivery.
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Singapore (7) Germany (1) Spain (1) United States (1)

This provider is available in 32 time zones:

Near East Time (NET)

Middle East Time (MET)

China Taiwan Time (CTT)

Brazil Eastern Time (BET)

Greenwich Mean Time (GMT)

India Standard Time (IST)

Japan Standard Time (JST)

Midway Islands Time (MIT)

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Yokohama, Japan

1-7 Kinko-cho, Kanagawa-ku, Yokohama city, Kanagawa, Japan, 24th Floor DIA Building
Yokohama, Japan 221-0056
501 - 750

815017459596

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Next Level Japan

5.0 2 reviews

$1,000+

$100 - $149 / hr

10 - 49

Minato City, Japan

Services provided

25% Advertising

25% Social Media Marketing

20% Conversion Optimization +3 services

10% Content Marketing

10% Digital Strategy

10% Sales Outsourcing

Next Level Japan is a digital marketing company specializing in social media management and brand development. They have received overwhelmingly positive feedback, with 100% of reviewers highlighting their strong alignment with client goals and exceptional project management. Clients commend their strategic partnership approach, citing impressive outcomes such as increased engagement and brand recognition.

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Industry Experience

Next Level Japan excels in eCommerce and consumer products, offering comprehensive branding and marketing solutions. In the eCommerce sector, they effectively rebuilt brands, enhanced visibility, and optimized advertising strategies, achieving strong engagement and sales growth. In consumer products, they successfully operated social media channels, driving follower growth and revenue. Clients appreciate their proactive communication and data-driven approach, making them a strategic partner in establishing impactful market presence across these industries.
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eCommerce Consumer Products

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Average Project Cost Breakdown

$200,000 to $999,999 (1)

What Clients Have Said
Clients consistently highlight Next Level Japan's exceptional value for money, citing their effective project management and strategic insights. For instance, one client noted the company's ability to deliver tasks on time while adapting to evolving needs, reinforcing a strong return on ad spend. Another client appreciated the alignment of company values and the overall collaboration, indicating that the partnership felt more like a strategic alliance than a mere service arrangement. Overall, the sentiment reflects satisfaction with pricing relative to the quality of service provided.
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TMJ, Inc.

Not yet reviewed

$1,000+

< $25 / hr

10,000+

Shinjuku City, Japan

Services provided

35% Call Center Services

35% Business Consulting

30% Staffing

TMJ, Inc. Is a Business Consulting company. Founded in 1992, their team specializes in Business Consulting and Call Center Services.
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Manies Group Co., Ltd.

Not yet reviewed

$25,000+

Undisclosed

10 - 49

Chiyoda City, Japan

Services provided

50% Sales Outsourcing

25% Translation

10% Direct Marketing +2 services

10% Product Marketing

5% Market Research

Manies Group Co., Ltd. Is a small Sales Outsourcing company in Chiyoda City, Japan. The team provides Sales Outsourcing and Translation.
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tele-net corp.

Not yet reviewed

$1,000+

< $25 / hr

250 - 999

Shinjuku City, Japan

Services provided

100% Call Center Services

Answering service company tele-net corp. Is based in Shinjuku City, Japan and Fukuoka, Japan. They provide Call Center Services.
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AGREX

Not yet reviewed

$1,000+

< $25 / hr

10 - 49

Shinjuku City, Japan

Services provided

70% Call Center Services

20% CRM Consulting and SI

10% Print Design

AGREX is a call center launched in 1965. The team offers Call Center Services and CRM consulting and SI and is in Shinjuku City, Japan.
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inSure

Not yet reviewed

$1,000+

< $25 / hr

50 - 249

Bunkyo City, Japan

Services provided

70% Call Center Services

30% Mobile App Development

InSure, a midsize telephone answering service, is located in Bunkyo City, Japan. The team provides Call Center Services and Mobile App Development.
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Indo-Sakura Software Pvt Ltd

Not yet reviewed

$50,000+

$200 - $300 / hr

50 - 249

Koto City, Japan

Services provided

20% Call Center Services

20% AI Consulting

20% Application Testing +2 services

20% Blockchain

20% Cybersecurity

Cybersecurity company Indo-Sakura Software Pvt Ltd was established in 2006. The agency focuses on Cybersecurity and Blockchain.
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Koto City, Japan

Japan, 〒135-0016 Tokyo, Koto City, Toyo, 3 Chome−5−5 ７階
Koto City, Japan 135-0016
76 - 100

+81 3-5633-7776

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IPS

Not yet reviewed

$1,000+

< $25 / hr

10 - 49

Chuo City, Japan

Services provided

50% Call Center Services

30% HR Consulting

20% Broadcast Video

IPS is an answering service company established in 1991. The team offers Call Center Services and HR Consulting.
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Verticurl

4.5 1 review

$5,000+

$100 - $149 / hr

250 - 999

Shibuya City, Japan

Services provided

20% Call Center Services

20% Advertising

20% BI & Big Data Consulting & SI +2 services

20% Marketing Strategy

20% Social Media Marketing

Verticurl offers services that include increasing productivity, redirecting resources, focusing on critical strategies, and reducing costs for businesses. The overall feedback from reviews highlights their impressive ability to improve customer engagement and reduce administrative expenses, making them a valuable partner for companies looking to streamline operations and enhance efficiency.

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BYG Advantage

Not yet reviewed

$100,000+

$100 - $149 / hr

10 - 49

Chiyoda City, Japan

Services provided

70% Sales Outsourcing

30% Marketing Strategy

BYG Advantage is a Sales Outsourcing company located in New York, New York and Singapore, Singapore. The team offers Sales Outsourcing and Marketing Strategy.
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Chiyoda City, Japan

20F Marunouchi Trust Tower, 1-8-3 Marunouchi Chiyoda-ku
Chiyoda City, Japan 100-0005
2 - 5

+81 80-9667-8008

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I&D Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Shibuya, Japan

Services provided

25% Back Office Outsourcing

25% Direct Marketing

25% Market Research +1 service

25% Sales Outsourcing

I&D Inc. Is a Direct Marketing company established in 1998. Their services include Direct Marketing and Market Research.
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MarketOne International

Not yet reviewed

$10,000+

Undisclosed

250 - 999

Chuo City, Japan

Services provided

30% Call Center Services

35% Email Marketing

20% Marketing Strategy +2 services

10% Conversion Optimization

5% Sales Outsourcing

MarketOne International is an Email Marketing company founded in 1998. Their services include Email Marketing and Call Center Services.
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Chuo City, Japan

NOF Nihonbashi Honcho Building 8F 2-7-1 Nihonbashi Honcho Chuo-ku
Chuo City, Japan 103-0023

335.111.560

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Swivelt

5.0 2 reviews

$100,000+

Undisclosed

10 - 49

港区, Japan

Services provided

30% Customer Service Outsourcing

30% Sales Outsourcing

20% Back Office Outsourcing +2 services

10% Pay Per Click

10% Search Engine Optimization

Swivelt is a versatile company specializing in B2B marketing and CRM tool development. Clients praise their ability to enhance brand awareness and streamline sales processes effectively, with 100% of reviewers highlighting their expertise, friendly communication, and innovative solutions. Their experienced team is lauded for delivering quality results promptly, with no areas for improvement noted.

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Reviews mention Easy to work with
Clients consistently praised Swivelt for being easy to work with, highlighting the friendly and communicative nature of their project managers. One review noted the project manager's ability to understand requirements effectively, contributing to a smooth workflow. Overall, the sentiment regarding their ease of collaboration is overwhelmingly positive, with clients expressing satisfaction with the team's responsiveness and professionalism throughout the project.

B2B Marketing for IT Software

5.0 Oct 28, 2020

The project manager assigned to us was very friendly and easy to communicate with and understand all the requirements. Over 20 Years of experience, Quality of the work, and very friendly people.
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Average Project Cost Breakdown

Less than $10,000 (2)

What Clients Have Said
Clients express high satisfaction with Swivelt's cost and value for money, highlighting effective solutions that justify their investment. One client noted that the CRM tool developed significantly eased their sales team's workflow, while another praised the rapid increase in brand awareness and lead generation within just 15 days. Overall, feedback reflects a perception of quality work delivered at a competitive price, with no reported areas for improvement.
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Indonesia (1) Malaysia (1)

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港区, Japan

Shinbashi-tokyu Bld.3F, 4-21-3, Shimbashi, Minato-ku
港区, Japan 105-0004
10 - 15

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Ablueblue Agency

Not yet reviewed

Undisclosed

$25 - $49 / hr

Freelancer

Setagaya City, Japan

Services provided

20% Corporate Photography

20% Market Research

20% Public Relations +2 services

20% Sales Outsourcing

20% Video Production

Ablueblue Agency, a PR company, was founded in 2012. They focuses on Public Relations and Market Research.
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Webhelp

Not yet reviewed

Undisclosed

Undisclosed

10,000+

Minato City, Japan

Services provided

23% Call Center Services

33% Customer Service Outsourcing

15% Sales Outsourcing +17 services

5% Back Office Outsourcing

5% Business Consulting

5% Finance & Accounting Outsourcing (FAO)

1% AI Development

1% BI & Big Data Consulting & SI

1% CRM Consulting and SI

1% Custom Software Development

1% Digital Strategy

1% Graphic Design

1% HR Consulting

1% Mobile App Development

1% Transcription

1% Translation

1% UX/UI Design

1% Unified Communications Consulting & SI

1% Web Design

1% Web Development

Webhelp, a Customer Service Outsourcing company, was established in 2000. The large team provides Customer Service Outsourcing and Call Center Services.
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Minato City, Japan

6F-7F ACN Shibadaimon Building, 2-2-1 Shiba Daimon Minato-Ku, Tokyo
Minato City, Japan 105-0012
50 - 75

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Ability to deliver

Focus

Proven

Market Leaders

Emerging

Niche

Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 Next Level Japan

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.

By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 1 Japan Call Center Companies & Voice Services

Next Level Japan

$1,000+

$100 - $149 / hr

10 - 49

Minato City, Japan

Ability to deliver

22.1/40.0

16.8/20 Reviews

0/10 Clients & Experience

5.3/10 Market Presence

Service focus

10% Sales Outsourcing

90% Other

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TMJ, Inc.

$1,000+

< $25 / hr

10,000+

Shinjuku City, Japan

Ability to deliver

5.8/40.0

0/20 Reviews

0/10 Clients & Experience

5.8/10 Market Presence

Service focus

35% Call Center Services

65% Other

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Manies Group Co., Ltd.

$25,000+

Undisclosed

10 - 49

Chiyoda City, Japan

Ability to deliver

6.6/40.0

0/20 Reviews

1.5/10 Clients & Experience

5.2/10 Market Presence

Service focus

50% Sales Outsourcing

50% Other

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tele-net corp.

$1,000+

< $25 / hr

250 - 999

Shinjuku City, Japan

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

100% Call Center Services

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AGREX

$1,000+

< $25 / hr

10 - 49

Shinjuku City, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

70% Call Center Services

30% Other

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inSure

$1,000+

< $25 / hr

50 - 249

Bunkyo City, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

70% Call Center Services

30% Other

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Indo-Sakura Software Pvt Ltd

$50,000+

$200 - $300 / hr

50 - 249

Koto City, Japan

Ability to deliver

5.3/40.0

0/20 Reviews

0/10 Clients & Experience

5.3/10 Market Presence

Service focus

20% Call Center Services

80% Other

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IPS

$1,000+

< $25 / hr

10 - 49

Chuo City, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

50% Call Center Services

50% Other

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Verticurl

$5,000+

$100 - $149 / hr

250 - 999

Shibuya City, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

20% Call Center Services

80% Other

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BYG Advantage

$100,000+

$100 - $149 / hr

10 - 49

Chiyoda City, Japan

Ability to deliver

13.2/40.0

0/20 Reviews

8.5/10 Clients & Experience

4.7/10 Market Presence

Service focus

70% Sales Outsourcing

30% Other

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I&D Inc.

Undisclosed

Undisclosed

10 - 49

Shibuya, Japan

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

25% Sales Outsourcing

75% Other

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TDCX

$100,000+

Undisclosed

10,000+

Yokohama, Japan

Ability to deliver

29.4/40.0

15.8/20 Reviews

4.5/10 Clients & Experience

9.1/10 Market Presence

Service focus

10% Call Center Services

20% Sales Outsourcing

70% Other

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MarketOne International

$10,000+

Undisclosed

250 - 999

Chuo City, Japan

Ability to deliver

5.7/40.0

0/20 Reviews

0/10 Clients & Experience

5.7/10 Market Presence

Service focus

30% Call Center Services

5% Sales Outsourcing

65% Other

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Swivelt

$100,000+

Undisclosed

10 - 49

港区, Japan

Ability to deliver

22.9/40.0

16.2/20 Reviews

1.3/10 Clients & Experience

5.3/10 Market Presence

Service focus

30% Sales Outsourcing

70% Other

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Ablueblue Agency

Undisclosed

$25 - $49 / hr

Freelancer

Setagaya City, Japan

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

20% Sales Outsourcing

80% Other

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Webhelp

Undisclosed

Undisclosed

10,000+

Minato City, Japan

Ability to deliver

7.2/40.0

0/20 Reviews

0/10 Clients & Experience

7.2/10 Market Presence

Service focus

23% Call Center Services

15% Sales Outsourcing

62% Other

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Top Call Center Services & Voice Services in Japan

List of the Top Japan Call Center Companies & Voice Services

Reviewed 1 time in the past 6 months

Call Center Services for Utility Company

Assistring LLC is very responsive

Customer Deployment for Consumer Products Company

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Easy to work with

B2B Marketing for IT Software

Average Project Cost Breakdown

What Clients Have Said

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Why Trust Clutch

List of the Top 1 Japan Call Center Companies & Voice Services

Latest Call Centers Articles

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Popular Locations in Japan