Home Call Centers Sales Outsourcing Japan

Top Sales Outsourcing Companies in Japan

Ratings Updated: June 14, 2026

We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust

Featured

What are Featured Providers?

LevelUp Leads

5.0 56 reviews
Premier Verified

$1,000+

$25 - $49 / hr

50 - 249

Serves Japan

Services provided

80% Sales Outsourcing

10% Call Center Services

10% Email Marketing

LevelUp Leads is a Sales Development Agency specializing in Sales Outsourcing Solutions and Sales Support Services. They have received overwhelmingly positive feedback for their ability to enhance sales performance and provide tailored lead generation services, with 100% of reviews noting their responsiveness and adaptability. Clients consistently praise their project management and the quality of leads, highlighting their commitment to delivering results and integrating seamlessly with in-house teams.

See all 56 projects

4 of 5 reviews are 5 stars

5 new reviews for Sales Outsourcing services

$10,000 – $49,000 avg. project cost

Reviewed 5 times in the past 6 months
Recent reviews of LevelUp Leads reflect high client satisfaction, emphasizing their effective lead generation and project management. Clients noted a significant increase in qualified meetings, with one reporting a fourfold increase in monthly qualified leads. The team's adaptability and responsiveness were frequently praised, alongside their proactive communication. Overall, clients appreciated the quality of support and results, with no significant areas for improvement identified, signifying a strong partnership and effective service delivery.
Read 5 Recent Reviews

Was this helpful?

26 of 29 Sales Outsourcing reviews are 5 stars

7 new reviews for Sales Outsourcing in past 6 months

$10,000 – $49,000 avg. project cost

Sales Outsourcing PROJECT HIGHLIGHT

Sales Outsourcing & Marketing Services for IoT Solutions Co
5.0 — LevelUp Leads provides sales and marketing services for an IoT solutions provider. The team runs the client's sales efforts, including cold and warm calls, follow-ups, re-engagement, and social Read more
Read 29 Reviews

Was this helpful?

Industry Experience

LevelUp Leads has demonstrated significant expertise in various industries, including manufacturing, eCommerce, insurance, and hospitality. Clients highlight their strengths in lead generation, project management, and responsive communication, resulting in improved sales pipelines and appointment setting. Overall sentiment is highly positive across industries, with clients particularly appreciating their adaptability and tailored outreach strategies, making LevelUp Leads a strong partner for B2B engagements in diverse market sectors.
Read All Reviews

Select Industry to see insights

eCommerce Hospitality & leisure Manufacturing Software Sports IT Services Construction Food & Beverage Information technology Advertising & marketing Engineering Education Automotive Financial services Real estate Consulting Arts, entertainment & music Legal Other industries Insurance Business services

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (23) Less than $10,000 (6) $50,000 to $199,999 (4)

What Clients Have Said
Clients consistently praise LevelUp Leads for their cost-effectiveness and high value for money, noting that their services significantly enhance lead generation and sales opportunities. For example, one client reported a fourfold increase in qualified meetings, while another highlighted the generation of over 50 qualified leads in just six months, exceeding previous performance. Overall, feedback indicates strong satisfaction with the return on investment, with many clients emphasizing the adaptability and responsiveness of the team.
Read All Reviews

Was this helpful?

View Profile Visit Website
Belkins

4.9 230 reviews
Premier Verified

$1,000+

< $25 / hr

50 - 249

Serves Japan

Services provided

70% Sales Outsourcing

10% CRM Consulting and SI

10% Call Center Services +1 service

10% Email Marketing

Belkins is a sales outsourcing solutions firm specializing in lead generation and sales team augmentation. With consistently high ratings and a strong culture fit, their expertise has led to successful campaigns, such as achieving a 41% open rate and booking 78 relevant appointments. Clients praise their proactive communication, project management, and ability to deliver results, with over 90% of reviews highlighting their professionalism and effectiveness in meeting sales outsourcing objectives.

See all 230 projects
1 of 1 reviews is 5 stars

Unknown avg. project cost

Reviewed 1 time in the past 6 months
In the past six months, client feedback for Belkins has been largely positive, highlighting their exceptional project management and effective lead generation strategies. A Program Director from a non-profit organization praised their discipline and technological proficiency, noting significant outcomes such as scheduled demonstrations and paid advertising calls. However, suggestions for improvement included better lead qualification and increased follow-up to reduce meeting no-shows. Overall, clients appreciate Belkins' commitment to delivering results.
Read 2 Recent Reviews

Was this helpful?

58 of 66 Sales Outsourcing reviews are 5 stars

$10,000 – $49,000 avg. project cost

Sales Outsourcing PROJECT HIGHLIGHT

Email Marketing for Health & Wellness Company
5.0 — Belkins has developed custom email outreach campaigns for a health and wellness company. They are tasked with identifying and engaging potential leads, generating leads, and setting appointments for Read more
Read 66 Reviews

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (108) $50,000 to $199,999 (31) Less than $10,000 (25) $200,000 to $999,999 (3) $1,000,000 to $9,999,999 (1)

What Clients Have Said
Client feedback on Belkins highlights a consistently positive sentiment regarding their value for money. Many reviews commend the company's effective lead generation strategies, with clients noting significant returns on investment. For instance, a client reported a 3.6x ROI and another highlighted 85 scheduled meetings, illustrating strong outcomes relative to costs. Overall, clients appreciate Belkins' professionalism, responsiveness, and ability to adapt strategies, often citing their services as a worthwhile investment for achieving business growth.
Read All Reviews

Was this helpful?

View projects from:

United States (136) Ukraine (23) Canada (8) Estonia (6) England (5) Germany (5) Poland (3) Russia (2) Norway (2) Denmark (2) Belgium (2) Ireland (2) Cyprus (2) Latvia (2) Singapore (2) Portugal (2) Netherlands (2) Czech Republic (1) Finland (1) Mexico (1) Romania (1) Australia (1) Lithuania (1) Slovenia (1) Switzerland (1) United Arab Emirates (1) Israel (1) Chile (1) India (1)

This provider is fluent in 3 languages:

English

German

French

This provider is available in 2 time zones:

Eastern Standard Time (EST)

Mountain Standard Time (MST)

Was this helpful?
View Profile Visit Website
A-SALES AB

4.8 68 reviews
Premier Verified

$1,000+

< $25 / hr

50 - 249

Serves Japan

Services provided

80% Sales Outsourcing

10% Call Center Services

10% Email Marketing

A-SALES AB is a Sales Development Agency specializing in Sales Outsourcing Solutions, offering services like lead generation, appointment setting, and market analysis. The company is praised for its effective communication and ability to deliver results, such as a 300% increase in appointment generation. Over 90% of reviews highlight their high ratings and value for cost, while one negative review cites unprofessional conduct.

See all 68 projects
3 of 4 reviews are 5 stars

4 new reviews for Sales Outsourcing services

Less than $10,000 avg. project cost

Reviewed 4 times in the past 6 months
In the last six months, A-SALES AB has received mixed feedback from clients. While one client praised their effectiveness in generating over 30 qualified calls, another expressed significant dissatisfaction, reporting zero leads from a $2,700 investment and highlighting poor communication and accountability. Overall sentiment reflects a division, with some clients appreciating their results and responsiveness, while others criticize delays and unmet expectations.
Read 4 Recent Reviews

Was this helpful?

43 of 46 Sales Outsourcing reviews are 5 stars

3 new reviews for Sales Outsourcing in past 6 months

Less than $10,000 avg. project cost

Sales Outsourcing PROJECT HIGHLIGHT

Sales Outsourcing & Lead Geneneration for B2B SaaS Company
5.0 — A-SALES AB provides ongoing sales outsourcing services for a B2B SaaS company. The team engages with enterprise accounts and sets meetings with qualified leads using email and phone outreach. Read more
Read 46 Reviews

Was this helpful?

Industry Experience

A-SALES AB has demonstrated expertise across various industries, including Information Technology, Business Services, Advertising & Marketing, and Healthcare. Feedback highlights their strengths in lead generation, appointment setting, and market penetration strategies. Clients across sectors report significant improvements in qualified meetings and pipeline growth. Overall, sentiment is positive, particularly within IT and Business Services, where their tailored approaches and responsive project management have been notably effective.
Read All Reviews

Select Industry to see insights

Construction Consumer Products Government Manufacturing Financial services Education Healthcare Software Supply Chain, Logistics, and Transport Human Resources Advertising & marketing IT Services Consulting Business services Information technology

Was this helpful?

View projects from:

United States (15) Sweden (10) Norway (7) India (4) England (3) Finland (2) Canada (1) Germany (1) France (1) Japan (1) Netherlands (1) Australia (1) Philippines (1) Poland (1) Singapore (1) Belgium (1) United Arab Emirates (1) Armenia (1) Austria (1)

This provider is fluent in 26 languages:

English

Arabic

Russian

Portuguese

German

French

Turkish

Italian

Polish

Ukrainian

Romanian

Dutch

View all languages

Was this helpful?
View Profile Visit Website
TDCX

4.8 12 reviews

Look for Verified Providers

Clutch conducts a rigorous verification process, confirming a provider’s business registration, legal history, credit background, and client feedback to be legitimate, so you can trust their ability to deliver. Learn More

Verified

$100,000+

Undisclosed

10,000+

Yokohama, Japan

Services provided

20% Sales Outsourcing

50% Customer Service Outsourcing

10% Business Consulting +2 services

10% Call Center Services

10% Content Moderation Services

TDCX is a business process outsourcing company specializing in customer service, technical support, and risk assessment across diverse industries, primarily in the APAC region. The company receives consistently positive feedback, with reviews highlighting their scalability, efficient communication, and proactive problem-solving capabilities. Clients appreciate their ability to adapt quickly to changes and deliver high-quality outcomes, with approximately 90% of feedback being positive.

See all 12 projects
Reviews mention Accommodating
Clients consistently highlight TDCX's accommodating nature, emphasizing their willingness to adapt to evolving business needs. One client noted the team's dedication to meeting requests based on learnings and their openness to changes, which is crucial for startups. Another mentioned TDCX's agility in managing workforce adjustments as business forecasts change, demonstrating a proactive partnership approach. Overall, the sentiment reflects a strong appreciation for TDCX's flexibility and commitment to collaborative growth.

BPO Services for E-Commerce Company

5.0 Mar 31, 2022

The team is very dedicated, willing to accommodate our requests based on learnings and business needs and also open for improvements. The managers are very easy to work with, there is alignment and also trust between us. I love how they see themselves as being part of another company's journey rather than focusing on short-term gain. As such, they are very accommodating and open to changes and revisions which is very important for a startup.
Read Full Review

Call Center Services for Global Tech Company

5.0 Jun 25, 2021

Strong operational cadence: Weekly/Monthly and Quarterly reviews. Constant communication and ability to circle back on complex problem statements given by our teams to TDCX. Very agile management - Workforce easily accommodates changes based on business forecasts and changing needs of quality and availability of talent. TDCX has a high bar on operational rhythm and cadence - 90% of the time they run the business on their own without any intervention needed from our teams.
Read Full Review

Read All Reviews

Was this helpful?
Industry Experience

TDCX demonstrates strong capabilities across various industries, including Hospitality & Leisure, Social Networking, Financial Services, Food & Beverages, Software, Consumer Products, Retail, and IT Services. Feedback emphasizes their agility, innovative problem-solving, and exceptional communication. Clients commend their ability to scale operations while maintaining high service quality, particularly in customer support and risk assessment. Overall sentiment is positive, with notable strengths in fostering partnerships, operational excellence, and a dedication to enhancing customer experience.
Read All Reviews

Select Industry to see insights

Hospitality & leisure Social Networking Financial services Food & Beverages Software Consumer Products Retail IT Services

Was this helpful?
View projects from:

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)

View all time zones

Was this helpful?
Yokohama, Japan

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

815017459596

See All Locations (17)

Was this helpful?
View Profile Visit Website
Next Level Japan

5.0 2 reviews

$1,000+

$100 - $149 / hr

10 - 49

Minato City, Japan

Services provided

10% Sales Outsourcing

25% Advertising

25% Social Media Marketing +3 services

20% Conversion Optimization

10% Content Marketing

10% Digital Strategy

Next Level Japan is a marketing and brand management firm specializing in social media strategy, brand development, and advertising optimization. They consistently deliver on objectives, with reviews highlighting their alignment with client goals and competence in project management. Notably, 100% of the reviews commend their responsiveness and strategic collaboration, reflecting the company’s emphasis on client partnership and long-term growth.

See all 2 projects

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.
Read All Reviews

Select Industry to see insights

eCommerce Consumer Products

Was this helpful?

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.
Read All Reviews

Was this helpful?

View Profile
Featured

What are Featured Providers?

CoDev

4.7 16 reviews
Verified

$5,000+

$25 - $49 / hr

250 - 999

Serves Japan

Services provided

20% Sales Outsourcing

10% BI & Big Data Consulting & SI

10% Custom Software Development +6 services

10% DevOps Managed Services

10% HR Outsourcing

10% IT Staff Augmentation

10% Mobile App Development

10% Recruitment Process Outsourcing

10% Web Development

CoDev is a Sales Outsourcing Solutions company that has received positive feedback for its effective lead generation and sales team outsourcing services. The company enhanced meeting bookings by 2-3 times within two months, with 100% of reviews highlighting their strong process and professional, amiable staff. Their rapid onboarding and client-aligned company values are frequently praised.

See all 16 projects

1 of 1 Sales Outsourcing reviews are 5 stars

1 new review for Sales Outsourcing in past 6 months

$10,000 – $49,000 avg. project cost

Sales Outsourcing PROJECT HIGHLIGHT

Lead Gen & Sales Outsourcing for Paid Advertising Agency
5.0 — CoDev provides lead generation services for a paid advertising agency. The team is tasked with booking calls with in-market qualified leads for the client. Read more
Read 1 Review

Was this helpful?

Industry Experience

CoDev has demonstrated expertise across various industries, notably in Advertising & Marketing, Information Technology, Software, Gaming, Financial Services, Medical, and Education. Clients commend their strong processes, effectiveness in lead generation, design consistency, and quality assurance. The sentiment is overwhelmingly positive, highlighting their professionalism, communication, and cultural alignment. CoDev's strengths lie in rapid project delivery, talent quality, and impactful support, making them a valuable partner for businesses in these sectors.
Read All Reviews

Select Industry to see insights

Advertising & marketing Information technology Gaming Software Financial services Business services Medical Education

Was this helpful?

Average Project Cost Breakdown

$10,000 to $49,000 (1) $50,000 to $199,999 (1)

What Clients Have Said
Clients consistently commend CoDev for offering excellent value for money, with many noting that their pricing fits within budget constraints while delivering high-quality results. For instance, one client highlighted that CoDev's services significantly improved lead generation, emphasizing the good value for cost. Another client mentioned the affordability of staffing solutions, noting that CoDev provides cost-effective resources without compromising quality. Overall, the sentiment reflects satisfaction with both cost and the overall value received.
Read All Reviews

Was this helpful?

View projects from:

United States (13) Canada (1) England (1)

Was this helpful?

View Profile Visit Website
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.
Read more

Chiyoda City, Japan

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

+81 80-9667-8008

See All Locations (8)

Was this helpful?

View Profile

Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

Get My Matches

Swivelt

5.0 2 reviews

$100,000+

Undisclosed

10 - 49

港区, Japan

Services provided

30% Sales Outsourcing

30% Customer Service 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.

See all 2 projects
Reviews mention Understands their clients' needs
Clients express a strong sentiment that Swivelt effectively understands their needs. One client highlighted the project manager's friendly communication and ability to grasp requirements, which facilitated a successful B2B marketing initiative that significantly increased brand awareness and generated leads within a short timeframe. Overall, feedback indicates high satisfaction with Swivelt's attentiveness and responsiveness to client objectives.

B2B Marketing for IT Software

5.0 Oct 28, 2020

The project manager assigned to us was very friendly and easy to communicate with us and understand all the requirements.
Read Full Review

Read All Reviews

Was this helpful?
Average Project Cost Breakdown

Less than $10,000 (2)

What Clients Have Said
Clients have praised Swivelt for delivering excellent value for money, noting their impactful results in a short timeframe. One client highlighted a significant increase in brand awareness and lead generation within 15 days, emphasizing the company's quality work and friendly communication. Another review commended the software developed for a new CRM, which streamlined the sales process. Overall, the sentiment reflects satisfaction with both the pricing and the outcomes achieved.
Read All Reviews

Was this helpful?

View projects from:

Indonesia (1) Malaysia (1)

Was this helpful?

港区, Japan

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

See All Locations (16)

Was this helpful?
View Profile
Ablueblue Agency

Not yet reviewed

Undisclosed

$25 - $49 / hr

Freelancer

Setagaya City, Japan

Services provided

20% Sales Outsourcing

20% Corporate Photography

20% Market Research +2 services

20% Public Relations

20% Video Production

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

View Profile
Webhelp

Not yet reviewed

Undisclosed

Undisclosed

10,000+

Minato City, Japan

Services provided

15% Sales Outsourcing

33% Customer Service Outsourcing

23% Call Center Services +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.
Read more

Minato City, Japan

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

See All Locations (52)

Was this helpful?

View Profile
I&D Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Shibuya, Japan

Services provided

25% Sales Outsourcing

25% Back Office Outsourcing

25% Direct Marketing +1 service

25% Market Research

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

View Profile

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

In-depth client interviews and ratings
Comprehensive project details
Market presence
Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Top Sales Outsourcing Companies in Japan

List of the Top Japan B2B Sales Outsourcing Services

Reviewed 5 times in the past 6 months

Sales Outsourcing & Marketing Services for IoT Solutions Co

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviewed 1 time in the past 6 months

Email Marketing for Health & Wellness Company

Average Project Cost Breakdown

What Clients Have Said

Reviewed 4 times in the past 6 months

Sales Outsourcing & Lead Geneneration for B2B SaaS Company

Industry Experience

Select Industry to see insights

Reviews mention Accommodating

BPO Services for E-Commerce Company

Call Center Services for Global Tech Company

Industry Experience

Select Industry to see insights

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Lead Gen & Sales Outsourcing for Paid Advertising Agency

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Understands their clients' needs

B2B Marketing for IT Software

Average Project Cost Breakdown

What Clients Have Said

Tell us what you need — we’ll match you with top agencies in minutes.

Why Trust Clutch

List of the Top Japan B1B Sales Outsourcing Services

Latest Sales Outsourcing Articles

How to Build a Budget for Call Center Services [With Template]

Guide to Call Center Outsourcing

How To Hire a Call Center in 4 Steps

Similar Categories

Related Services

Specialties

Popular Locations in Japan