Top Call Center Services & Voice Services in Sao Paulo

Ratings Updated: June 6, 2026

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Featured

What are Featured Providers?
Hugo Inc.

5.0 28 reviews
Verified

$1,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

20% Call Center Services

25% Customer Service Outsourcing

15% Back Office Outsourcing +4 services

10% Content Moderation Services

10% Data Annotation Services

10% Finance & Accounting Outsourcing (FAO)

10% Sales Outsourcing

Hugo Inc. | Top CX Provider is a distinguished company specializing in Contact Center Services, offering comprehensive Customer Support Services across various channels such as email, chat, and phone. The client reviews highlight their adaptability and efficiency, with 100% positive feedback on their seamless integration and ability to enhance customer engagement capabilities, resulting in impressive metrics like a 99.8% accuracy in order processing and fulfillment.

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3 of 3 Call Center Services reviews are 5 stars

$50,000 – $199,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Back Office Outsourcing for E-Commerce Co
5.0 — Hugo provides back-office outsourcing for an e-commerce company. The team has handled the client's back-office tasks, managed communications and relationships with retailers' networks, and vetted Read more
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Industry Experience

Hugo Inc. has garnered positive feedback across multiple industries, including Financial Services, eCommerce, Automotive, Software, Environmental Services, Advertising & Marketing, Information Technology, and Gaming. Their expertise in customer support, operational efficiency, and content management has consistently been highlighted as a strength. Clients noted significant improvements in response times, customer satisfaction, and overall efficiency. Hugo's ability to adapt to various industry needs, coupled with their commitment to high-quality service, positions them as a valuable partner for businesses seeking to enhance their operations.
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Financial services eCommerce Automotive Food & Beverages Software Information technology Environmental Services Advertising & marketing Gaming Media

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Average Project Cost Breakdown

$50,000 to $199,999 (7) $200,000 to $999,999 (6) $10,000 to $49,000 (2)

What Clients Have Said
Clients consistently commend the company for its exceptional value for money, highlighting that Hugo offers high-quality services at competitive rates. One client noted, 'Good value for cost,' while another emphasized their 'ability to scale services without compromising quality.' Many reviews reflect satisfaction with cost reductions and enhanced operational efficiency, with one client praising an '80% improvement in efficiency' compared to in-house hiring. Overall, the sentiment is overwhelmingly positive, indicating that clients perceive Hugo as a cost-effective partner.
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United States (9) Kenya (3) France (1) Netherlands (1) United Arab Emirates (1) England (1)

This provider is fluent in 54 languages:

Mandarin

English

Spanish

Arabic

Bengali

Hindi

Russian

Portuguese

Japanese

German

Javanese

Korean

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This provider is available in 38 time zones:

Colombia Time (COT)

Near East Time (NET)

Middle East Time (MET)

China Taiwan Time (CTT)

Gulf Standard Time (GST)

Brazil Eastern Time (BET)

Greenwich Mean Time (GMT)

India Standard Time (IST)

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Helpware CX

4.8 47 reviews
Premier Verified

$5,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

20% Call Center Services

50% Customer Service Outsourcing

10% Back Office Outsourcing +2 services

10% Content Moderation Services

10% Data Annotation Services

Helpware is a specialized provider of customer care services, offering expertise in both inbound and outbound call center operations. The company consistently receives high praise for its ability to customize solutions, leading to seamless integration with clients' needs. Approximately 80% of reviewers highlight Helpware's proactive approach and strong project management skills, while 90% emphasize its cultural and operational alignment with client goals, reflecting an overall positive reception.

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0 of 1 reviews is 5 stars

Unknown avg. project cost

Reviewed 1 time in the past 6 months
Recent client feedback highlights Helpware CX's effectiveness in customer research and marketing, resulting in the acquisition of six new customers. Clients commend the team's impressive speed and efficient project management, facilitated through seamless communication. The positive sentiment is reinforced by a client's satisfaction with the value provided relative to cost, with no suggested areas for improvement. Overall, Helpware CX is viewed as a reliable partner for marketing initiatives.
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17 of 21 Call Center Services reviews are 5 stars

$200,000 – $999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Services for Digital Government Partner
5.0 — Helpware provides call center services for a digital government partner. They offer resources to assist the public on phones and email by responding to inbound calls and reviewing applications. Read more
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More responsive than most other service providers

Helpware CX 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 (40) Canada (1) Georgia (1) Kenya (1) New Zealand (1)

This provider is fluent in 16 languages:

Mandarin

English

Spanish

Arabic

Russian

Portuguese

Japanese

German

Korean

French

Vietnamese

Italian

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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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Select VoiceCom

4.8 9 reviews
Premier Verified

$5,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

30% Call Center Services

30% Customer Service Outsourcing

10% Back Office Outsourcing +3 services

10% Finance & Accounting Outsourcing (FAO)

10% IT Staff Augmentation

10% Sales Outsourcing

Select VoiceCom is a provider of Contact Center Services, specializing in customer support, telephonic support, and telemarketing services. Reviews indicate a strong cultural fit with clients, highlighted by impressive communication and project management skills. Notably, Select VoiceCom achieved a 35% increase in customer satisfaction and a 25% boost in sales conversions. Positive feedback predominates, with no significant areas for improvement highlighted by clients.

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2 of 4 Call Center Services reviews are 5 stars

$200,000 – $999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Services for Third-Party Management Company
4.5 — Select VoiceCom provides call center services for a third-party management company. The team handles customer calls and supports the client's internal call center. Read more
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Industry Experience

Select VoiceCom exhibits strong capabilities across various industries, including Media, Business Services, Advertising & Marketing, Pharmaceuticals, Financial Services, and Legal. Clients commend their reliability, project management, and the ability to deliver measurable results, such as increased sales and improved customer service. Overall, feedback suggests a positive sentiment, particularly in the Financial Services and Legal sectors, where their attention to quality and client needs is highlighted as a key strength.
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Media Business services Advertising & marketing Pharmaceuticals Other industries Legal Financial services

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Average Project Cost Breakdown

$10,000 to $49,000 (2) $50,000 to $199,999 (2) $1,000,000 to $9,999,999 (2) $200,000 to $999,999 (1)

What Clients Have Said
Clients express a strong sentiment regarding Select VoiceCom's cost-effectiveness and value for money, often highlighting it as a key reason for their selection. One client noted it offered 'good value for cost,' and another mentioned the 'high ratings' and 'great culture fit' that justified their investment. Overall, feedback indicates that Select VoiceCom consistently delivers results that exceed expectations, making them a reliable partner for various business needs.
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United States (7) Australia (1)

This provider is fluent in 1 language:

English

This provider is available in 1 time zone:

Eastern Standard Time (EST)

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TDCX

4.8 12 reviews

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Verified

$100,000+

Undisclosed

10,000+

São Paulo, Brazil

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 prominent provider of Contact Center Services, offering comprehensive customer support solutions including inbound and outbound call handling, telemarketing, and customer care services. Reviews indicate a high satisfaction with TDCX's ability to provide scalable, high-quality service, with impressive results in customer satisfaction and service excellence. Approximately 95% of feedback highlights their effective communication, adaptability, and innovative approach to problem-solving.

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Reviews mention Receptive
TDCX demonstrates a high level of receptiveness to client feedback, as noted by a regional project manager who highlighted their management team's openness to new ideas and suggestions. The flexibility in accommodating last-minute changes and sourcing native speakers promptly further exemplifies their adaptability. Overall, clients express satisfaction with TDCX's responsiveness and the positive impact on customer satisfaction rates, although there is a suggestion for more competitive pricing.

Call Center Services for Premium Coffee Brand

5.0 Apr 24, 2022

Their management team are receptive to feedback, new ideas and suggestions.
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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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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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São Paulo, Brazil

Avenida Paulista 1374 – 6th floor, Bela Vista
São Paulo, Brazil 01310-000
101 - 150

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Customer Umbrella

5.0 20 reviews

$1,000+

< $25 / hr

250 - 999

São Paulo, Brazil

Services provided

20% Call Center Services

20% Back Office Outsourcing

20% IT Managed Services +4 services

15% Customer Service Outsourcing

10% IT Staff Augmentation

10% Staffing

5% Recruiting

Customer Umbrella is a proficient provider of Contact Center Services, excelling in Customer Support Services, Inbound and Outbound Call Center, and Telephonic Support. Reviewers consistently praise their professionalism and seamless integration into client operations, with 100% positive feedback highlighting their outstanding customer service and effective communication. Their expertise in call handling and proactive problem-solving significantly enhances client satisfaction and operational efficiency.

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Reviews mention Results-oriented
Customer Umbrella has received positive feedback for its results-oriented approach, particularly in enhancing customer satisfaction and operational efficiency. One client noted a significant reduction in scheduling errors and an increase in repair turnaround times due to the team's proactive telemarketing efforts. Their commitment to understanding client needs and seamless integration into existing workflows was highlighted as impressive, reflecting a strong dedication to achieving measurable outcomes without any identified areas for improvement.

Back Office Outsourcing for Electronics Manufacturer

5.0 Feb 28, 2024

Our repair service operations' increased customer satisfaction and efficiency were clear indicators of the project's results. We saw a major decrease in scheduling errors and missed appointments as a result of their persistent telemarketing efforts, which sped up hardware repair turnaround times. Furthermore, our diverse customer base received effective and personalised communication thanks to their multilingual support, which improved their overall experience with us.
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More responsive than most other service providers

Customer Umbrella 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 (5) Cyprus (2) Germany (2) Canada (1) England (1)

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São Paulo, Brazil

Av. Paulista Bela Vista
São Paulo, Brazil 01310
50 - 75

+359885379385

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Featured

What are Featured Providers?

SupportYourApp

4.8 85 reviews
Premier Verified

$1,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

30% Call Center Services

30% Customer Service Outsourcing

20% AI Agents +2 services

15% Back Office Outsourcing

5% Data Annotation Services

SupportYourApp is a distinguished provider of Customer Support Services, specializing in Contact Center Services, Inbound and Outbound Call Center solutions, and 24/7 Customer Care Services. The company is lauded for its adaptive and responsive service, with clients noting improved customer satisfaction and efficient project management. Approximately 90% of reviews emphasize their flexibility and commitment to delivering high-quality telephonic support across various industries.

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9 of 12 reviews are 5 stars

1 new review for Call Center Services services

$200,000 – $999,999 avg. project cost

Reviewed 12 times in the past 6 months
Recent reviews of SupportYourApp indicate a generally positive sentiment, with clients praising their responsiveness, project management, and ability to deliver quality services. For instance, Fourth Estate highlighted the successful hiring of over ten employees, while Canary Speech appreciated the team's operational excellence and adaptability. However, there were notable criticisms regarding inconsistent service quality, particularly from a lifestyle apparel brand, which reported increased internal workload due to poor support execution. Overall, while many clients were satisfied, some expressed the need for improvements in ownership and accountability.
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Average Project Cost Breakdown

$10,000 to $49,000 (19) $50,000 to $199,999 (11) Less than $10,000 (7) $1,000,000 to $9,999,999 (2) $200,000 to $999,999 (1)

What Clients Have Said
Clients consistently highlight SupportYourApp's competitive pricing and value for money, often remarking that the company's services fit their budgets while delivering high-quality support. One client noted, 'their pricing fit our budget, and they offered good value for the cost.' Another emphasized that SupportYourApp's team effectively scaled with their needs, stating, 'they provide the same quality of services as if they were in-house, but for a more cost-effective rate.' Overall, the sentiment is positive, with many clients expressing satisfaction with the cost-to-value ratio.
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More responsive than most other service providers

SupportYourApp 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 (25) Ukraine (7) Israel (6) England (5) Germany (3) Netherlands (3) Czech Republic (2) Denmark (2) Sweden (2) Luxembourg (1) Norway (1) Italy (1) Austria (1) Malta (1) Greece (1) New Zealand (1) Ireland (1) Poland (1) Russia (1) France (1) Switzerland (1) Costa Rica (1) Canada (1) Bahamas (1)

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six eleven global services

4.8 10 reviews
Verified

$1,000+

< $25 / hr

1,000 - 9,999

Serves Sao Paulo, Brazil

Services provided

40% Call Center Services

30% Back Office Outsourcing

30% Customer Service Outsourcing

Six Eleven Global Services is a customer support services provider specializing in call handling and customer service operations. The company has garnered positive feedback, with reviewers highlighting their exceptional responsiveness and alignment with company values. A significant 100% of reviewers commend their swift one-hour response times and the cultural fit, without any noted areas for improvement.

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Reviews mention Team players
Clients consistently highlight the team-oriented approach of Six Eleven Global Services, noting their commitment to collaboration and support. One client emphasized the 'family team relationship' fostered among the 3,800 agents, which contributes to a positive working environment. Furthermore, the CEO's hands-on involvement and open access to management for support reinforce the company's dedication to teamwork. Overall, the sentiment reflects a strong appreciation for their collaborative ethos.

Call Center Services for Call Center Outsourcing Firm

4.5 Feb 11, 2023

The company provides a family team relationship with their 3800 plus agents. Weekly or monthly KPI reports are provided and conference room use for weekly video team support are provided.
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Industry Experience

Six Eleven Global Services has demonstrated strengths in various industries, including Advertising & Marketing, Logistics & Supply Chain, Beauty & Cosmetics, Telecommunications, Consulting, and Wellness & Fitness. Clients praised their effective communication, high-quality service, and responsiveness. They excelled in providing customer support and managing projects with impressive accuracy, particularly in Logistics and Telecommunications where they ensured operational efficiency. Overall, they are a strong fit for companies seeking reliable outsourcing solutions in these sectors.
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Logistics & Supply Chain Advertising & marketing Beauty & Cosmetics Telecommunications Consulting Wellness & Fitness

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More responsive than most other service providers

six eleven global services 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) Canada (1) Malaysia (1)

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Simply Contact

4.8 26 reviews
Verified

$1,000+

< $25 / hr

250 - 999

Serves Sao Paulo, Brazil

Services provided

35% Call Center Services

55% Customer Service Outsourcing

10% Back Office Outsourcing

Simply Contact is a professional contact center services company specializing in inbound and outbound call handling, customer support services, and telephonic support across various languages and channels. Reviews indicate a remarkable satisfaction rate, with over 95% of feedback being positive, highlighting their efficiency, adaptability, and exceptional customer care services. Notably, Simply Contact achieved a 30-45% increase in customer satisfaction scores for multiple clients.

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12 of 15 Call Center Services reviews are 5 stars

$200,000 – $999,999 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Call Center Staffing for Government Helpline
5.0 — Simply Contact provides staff to a government hotline's team; they hire and train call center agents to cover workflows around the clock. They've organized the hotline's IT structure, monitoring, Read more
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Industry Experience

Simply Contact has demonstrated expertise across multiple industries, including Information Technology, Financial Services, Software, Education, Advertising & Marketing, and Retail. Clients consistently highlight their strengths in providing efficient customer support, adaptability, and multilingual services. Positive feedback reflects enhanced customer satisfaction, increased resolution speeds, and tailored solutions across sectors. Overall sentiment is particularly favorable within IT and Software, indicating a strong fit for businesses seeking reliable customer service and support.
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Software Information technology Financial services Education Advertising & marketing IT Services Arts, entertainment & music Retail Hospitality & leisure Human Resources Business services Telecommunications

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Ukraine (8) United States (7) England (4) Israel (1) Italy (1) Latvia (1) Philippines (1)

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Labora

5.0 1 review

$1,000+

Undisclosed

10 - 49

São Paulo, Brazil

Services provided

50% Customer Service Outsourcing

50% Sales Outsourcing

Labora is a business process outsourcing company specializing in connecting influencers with travelers. The reviews highlight their effective project management, with timely deliverables and excellent response times. While clients appreciate their dedication, some suggest incorporating AI more effectively. Overall feedback is predominantly positive, underscoring their strong cultural fit and commitment to client projects.

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Industry Experience

Labora has demonstrated expertise in the Information Technology sector, particularly in facilitating connections between influencers and travelers through Business Process Outsourcing strategies. Clients have praised their timely delivery, strong communication, and commitment to project success. Overall sentiment within this industry is positive, highlighting Labora's ability to enhance user experiences and foster community engagement. Potential clients in travel and influencer marketing may find Labora particularly well-suited for their projects.
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Information technology

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Average Project Cost Breakdown

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

What Clients Have Said
Clients have noted that Labora offers good value for money, with timely deliverables and responsive communication. One client highlighted their project management effectiveness, stating, "Most of their deliveries were on time" and praised their quick response times. Overall, the sentiment is positive, with clients appreciating the company's commitment to their projects, although there are suggestions for improvement, such as better integration of AI technology.
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Combine Global Recruitment

5.0 1 review

$1,000+

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

30% Recruiting

15% HR Outsourcing

15% Staffing +4 services

10% Customer Service Outsourcing

10% Executive Search

10% Recruitment Process Outsourcing

10% Sales Outsourcing

Combine Global Recruitment specializes in structuring management teams for fast-growing companies and creating efficient organizational structures. Their reviews highlight a seamless workflow with prompt, constructive communication, and comprehensive candidate data, facilitating informed decision-making. The feedback is overwhelmingly positive, with clients praising their strategic approach and effectiveness in meeting ambitious growth objectives. The company's ability to quickly grasp core business needs is particularly impressive.

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Industry Experience

Combine Global Recruitment has demonstrated expertise in the Logistics & Supply Chain sector, particularly with fast-growing companies like Nowports. Feedback highlights their strategic approach to building effective teams and company culture, resulting in solid organizational structures and quality candidate pipelines. Clients commend their ability to provide comprehensive data for decision-making and effective communication throughout the engagement. Overall, sentiment in this industry is highly positive, indicating a strong fit for organizations seeking robust recruitment solutions.
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Logistics & Supply Chain

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Average Project Cost Breakdown

$10,000 to $49,000 (1)

What Clients Have Said
Clients have praised Combine Global Recruitment for their holistic approach and strategic insights, which are perceived as valuable in meeting fast growth demands. One client noted the comprehensive candidate data provided, aiding in informed decision-making. Overall, the sentiment reflects satisfaction with the cost-to-value ratio, highlighting that the service's quality justifies the investment. The direct involvement of senior leadership, such as the CEO, was also appreciated, enhancing the perceived value.
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More responsive than most other service providers

Combine Global Recruitment 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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Apex America

Not yet reviewed

$10,000+

Undisclosed

10,000+

Sao Paulo, Brazil

Services provided

40% Call Center Services

20% Back Office Outsourcing

20% Customer Service Outsourcing +3 services

10% Content Moderation Services

5% Business Consulting

5% Robotics Process Automation

Apex America is a telephone answering service. Established in 2003, the firm is in Córdoba, Argentina and ARW, Argentina. Their services include Call Center Services and Back Office Outsourcing.
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Sao Paulo, Brazil

100 Avenida Alfredo Egídio de Souza Aranha
Sao Paulo, Brazil 04726-170
751 - 1000

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Altio BPO and Technology

Not yet reviewed

$5,000+

< $25 / hr

250 - 999

sao paulo, Brazil

Services provided

40% Call Center Services

50% Custom Software Development

10% Web Design

Founded in 2011, Altio BPO and Technology is a software development firm and call center service. The firm focuses on Custom Software Development and Call Center Services, and is midsize.
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Amaro Group

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

Amaro Group is a call center service. They are based in Sao Paulo, Brazil and have midsize team. They provide Call Center Services.
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What are Featured Providers?
Significo

5.0 6 reviews
Premier Verified

$1,000+

$25 - $49 / hr

50 - 249

Serves Sao Paulo, Brazil

Services provided

40% Call Center Services

40% CRM Consulting and SI

10% Back Office Outsourcing +1 service

10% Customer Service Outsourcing

Significo is a dedicated provider of Contact Center Services, specializing in Inbound Call Center and Customer Support Services. Their clients, including those in the automotive and oil industries, consistently praise them for their timeliness, adaptability, and outstanding customer care, resulting in increased customer satisfaction and reduced wait times. Approximately 100% of reviewers highlight their impressive responsiveness and alignment with client needs.

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Reviews mention Passionate about their work
Clients consistently highlight Significo's passion and dedication to their work. One client noted their 'passion, expertise, and people who will do everything for the client,' emphasizing their commitment to treating customers as their own. Another remarked on their impressively fast and reliable service, showcasing a seamless execution of tasks. Overall, the sentiment regarding their passion reflects a strong alignment with client values and a proactive approach to meeting customer needs.

Customer Support Services for Oil & Gas Company

5.0 Feb 15, 2024

The most impressive thing about this company is their passion, expertise and people who will do everything for the client. They treat our customers like their own, which is the most important thing for an outsourced contact centre. Significo delivered everything that was in line with our expectations.
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Customer Support Services for Car Dealer

5.0 Dec 6, 2023

Significo was absolutely ready for the entire project. They take our every request into account and support it with their knowledge. They properly plan all work tasks in accordance with the work plan and program and report to us on the daily progress. The most impressive things about them are their passion, expertise, and people who will do everything for the client and show you what you need in the future if you are not yet aware of it.
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3 of 3 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 Automotive Services Company
5.0 — Significo provided digital marketing services for an automotive company. The team worked on e-mobility and after-sales marketing campaigns. Read more
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Industry Experience

Significo has demonstrated expertise in the Automotive and Energy & Natural Resources industries. In the Automotive sector, clients have praised their effective customer support and ability to enhance customer satisfaction and sales. For Energy & Natural Resources, they excelled in providing seamless customer care, resulting in improved loyalty program engagement and customer satisfaction. Overall, the sentiment is highly positive, indicating a strong alignment with client values and a commitment to excellence across both industries.
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Automotive Energy & natural resources

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Average Project Cost Breakdown

Less than $10,000 (1) $50,000 to $199,999 (1)

What Clients Have Said
Clients consistently highlight Significo's competitive pricing and strong value for money. One client noted that the pricing 'fit our budget' and emphasized 'good value for cost,' while another remarked on their 'great culture fit' and alignment of company values. Overall, feedback suggests that Significo delivers effective solutions without compromising quality, leading to increased customer satisfaction and operational efficiency.
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Virtual Sales Limited

4.8 20 reviews
Premier Verified

$1,000+

$50 - $99 / hr

50 - 249

Serves Sao Paulo, Brazil

Services provided

50% Call Center Services

50% Sales Outsourcing

Virtual Sales Limited is a company specializing in outbound call center and telemarketing services, focusing on lead generation and appointment setting. Their performance is lauded across reviews, with 100% of clients praising their communication and timely project management. Additionally, Virtual Sales Limited is noted for industry expertise and adaptability, with no areas for improvement suggested by clients.

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3 of 5 reviews are 5 stars

2 new reviews for Call Center Services services

Less than $10,000 avg. project cost

Reviewed 5 times in the past 6 months
Over the past six months, Virtual Sales Limited has received positive feedback for their effective lead generation and appointment-setting services. Clients commend their flexibility, responsiveness, and industry knowledge, noting measurable outcomes such as an increase in meetings and qualified leads. Specific feedback highlights their ability to adapt quickly to client needs and deliver on time, with one client stating, 'they act as an extension of our team.' Overall, the sentiment is highly favorable, with no significant areas for improvement mentioned.
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More responsive than most other service providers

Virtual Sales Limited 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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England (9) United States (4) Bulgaria (1) Croatia (1) France (1)

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Valoris Center

4.9 15 reviews
Premier Verified

$1,000+

< $25 / hr

250 - 999

Serves Sao Paulo, Brazil

Services provided

50% Call Center Services

20% Customer Service Outsourcing

15% Back Office Outsourcing +1 service

15% CRM Consulting and SI

Valoris Center is a company specializing in Contact Center Services, offering a comprehensive suite of solutions, including Inbound and Outbound Call Center, Customer Support Services, and Telemarketing Services. Reviews indicate a strong emphasis on punctuality, flexibility, and customer care, with over 85% client satisfaction ratings and notable mentions for their proactive and adaptable approach.

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1 of 2 reviews are 5 stars

2 new reviews for Call Center Services services

$50,000 – $199,999 avg. project cost

Reviewed 2 times in the past 6 months
Recent reviews of Valoris Center reflect a strong overall sentiment, highlighting their punctuality and proactive approach. Clients noted impressive reaction times to needs and effective communication, with one stating, 'Everything was very punctual, and the objectives were achieved within the agreed timeframe.' However, there are suggestions for improvement, such as enhancing attention to ticket distribution. Overall, Valoris Center is recognized for their good value and alignment with client values.
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Average Project Cost Breakdown

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

What Clients Have Said
Clients consistently highlight Valoris Center's strong value for money, noting that their pricing aligns well with budget expectations. For example, one client mentioned selecting Valoris due to its 'good value for cost' and 'pricing fit our budget.' Another stated that Valoris offered a 'price-performance ratio in line with our expectations.' Overall, the sentiment reflects satisfaction with the services provided relative to the costs incurred, reinforcing their reputation as a cost-effective partner.
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More responsive than most other service providers

Valoris Center 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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Romania (8) Austria (1) Croatia (1) Italy (1) Russia (1)

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InHouse Contact Center and Information Technology

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Santo Amaro, Brazil

Services provided

100% Call Center Services

Headquartered in Santo Amaro, Brazil, InHouse Contact Center and Information Technology is a call center company. They provide Call Center Services and were founded in 1988.
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AHEAD Infraestrutura para Contact Centers

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

São Paulo, Brazil

Services provided

100% Call Center Services

Established in 2007, AHEAD Infraestrutura para Contact Centers is a midsize answering service company. Their services include Call Center Services.
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Featured

What are Featured Providers?

A-SALES AB

4.9 67 reviews
Premier Verified

$1,000+

< $25 / hr

50 - 249

Serves Sao Paulo, Brazil

Services provided

10% Call Center Services

80% Sales Outsourcing

10% Email Marketing

A-SALES AB is a company specializing in outbound lead generation and sales meeting facilitation, offering services such as telemarketing and customer support. The reviews reflect an overall positive sentiment, with a remarkable 100% of clients praising their tailored approach and strong project management. Their ability to quickly understand complex industries and generate qualified meetings consistently is a recurring theme across testimonials.

See all 67 projects

16 of 16 Call Center Services reviews are 5 stars

Less than $10,000 avg. project cost

Call Center Services PROJECT HIGHLIGHT

Sales Outsourcing Services for E-Commerce Fulfillment Co
5.0 — A-SALES AB provides sales outsourcing services for an e-commerce fulfillment company. The team is responsible for helping the client break into the Western market through cold emails and cold calls. Read more
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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.
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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

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Average Project Cost Breakdown

Less than $10,000 (20) $10,000 to $49,000 (14)

What Clients Have Said
Clients consistently perceive A-SALES AB as offering excellent value for money, with many noting their competitive pricing and effective results. One client highlighted that they chose A-SALES due to their 'good value for cost' and 'high ratings'. Another mentioned they received '21 meetings with furniture manufacturers' after investing less than $10,000. Overall, the sentiment is positive, with clients appreciating the return on investment and quality of leads generated.
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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)

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Daleth AC Ambiente Colaborativo

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

Founded in 2008, Daleth AC Ambiente Colaborativo, a midsize answering service, is located in Sao Paulo, Brazil. Their team provides Call Center Services.
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JobHome

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

100% Call Center Services

JobHome is a telephone answering service. The Sao Paulo, Brazil-based agency was founded in 2017. Their services include Call Center Services.
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BlueLab

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

100% Call Center Services

BlueLab is a call center. Located in Sao Paulo, Brazil, the team offers Call Center Services.
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ALKES

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

ALKES is an answering service. Headquartered in Sao Paulo, Brazil, the company focuses on Call Center Services.
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ARC TELECOM

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

100% Call Center Services

Located in Sao Paulo, Brazil, ARC TELECOM is a small call center service. Their services include Call Center Services.
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i9 Contact Center

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Sao Paulo, Brazil

Services provided

100% Call Center Services

Founded in 2009, i9 Contact Center is a midsize answering service company based in Sao Paulo, Brazil. Their team focuses on Call Center Services.
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Top Use - Headsets

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Cotia , Brazil

Services provided

100% Call Center Services

Top Use - Headsets is an answering service headquartered in Cotia , Brazil. Founded in 1996, the team focuses on Call Center Services.
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Diallink

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

SAO PAULO, Brazil

Services provided

100% Call Center Services

Diallink is a call center company. In SAO PAULO, Brazil, the agency was founded in 2006. Their services include Call Center Services.
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Neobpo

Not yet reviewed

Undisclosed

Undisclosed

10,000+

São Paulo, Brazil

Services provided

40% Call Center Services

30% Back Office Outsourcing

10% Business Consulting +2 services

10% Digital Strategy

10% IT Managed Services

Neobpo is a call center service. Launched in 2017, the team specializes in Call Center Services and Back Office Outsourcing. The company is based in São Paulo, Brazil.
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Vermont XCenter

Not yet reviewed

Undisclosed

Undisclosed

250 - 999

Sao Paulo, Brazil

Services provided

40% Call Center Services

40% Sales Outsourcing

10% Business Consulting +1 service

10% IT Strategy Consulting

Vermont XCenter, a midsize answering service company, is based in Sao Paulo, Brazil. Their services include Call Center Services and Sales Outsourcing.
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AG Call Center

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

40% Call Center Services

30% Customer Service Outsourcing

30% Sales Outsourcing

AG Call Center is a small phone answering service launched in 2002. Their team specializes in Call Center Services and Customer Service Outsourcing.
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BYG Advantage

Not yet reviewed

$100,000+

$100 - $149 / hr

10 - 49

Sao Paulo, Brazil

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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Sao Paulo, Brazil

Av. Eng. L. C. Berrini 105 - Suite 1014 CEP
Sao Paulo, Brazil 04571-010
1

+1 (845) 770-7526

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Leadmedia

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

20% CRM Consulting and SI

20% Ecommerce Marketing

20% Email Marketing +2 services

20% Pay Per Click

20% Sales Outsourcing

Small Email Marketing company Leadmedia, is headquartered in Sao Paulo, Brazil. Their services include Email Marketing and Pay Per Click.
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Novatrade Brasil

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

10% Call Center Services

50% Logistics & Supply Chain Consulting

40% Business Consulting

Launched in 2012, Novatrade Brasil is a Logistics & Supply Chain Consulting company. The agency focuses on Logistics & Supply Chain Consulting and Business Consulting.
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Paulo Leads

Not yet reviewed

$5,000+

$100 - $149 / hr

2 - 9

Valinhos, Brazil

Services provided

30% BI & Big Data Consulting & SI

30% Sales Outsourcing

10% AI Agents +3 services

10% AI Consulting

10% AI Development

10% Generative AI

Paulo Leads is a big data analytics company. The team offers BI & big data consulting & SI and Sales Outsourcing and is based in Valinhos, Brazil.
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Talkover

Not yet reviewed

$10,000+

Undisclosed

2 - 9

São José dos Campos, Brazil

Services provided

35% Call Center Services

35% AI Agents

30% Transcription

Founded in 2025, Talkover is an AI Agents company. The team focuses on AI Agents and Call Center Services.
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Quality Contact Center

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Taboão da Serr, Brazil

Services provided

100% Call Center Services

Quality Contact Center, a small answering service, is based in Taboão da Serr, Brazil. Their services include Call Center Services.
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Kindico Digital Marketing Agency Ltd

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

50% Affiliate Marketing

50% Sales Outsourcing

Kindico Digital Marketing Agency Ltd is an Affiliate Marketing and Sales Outsourcing company founded in 2016. The team specializes in Affiliate Marketing and Sales Outsourcing.
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Maromatel - Vivo Empresas

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Sao Paulo, Brazil

Services provided

40% Call Center Services

50% Business Consulting

10% Customer Service Outsourcing

Business Consulting company Maromatel - Vivo Empresas is located in Sao Paulo, Brazil. They offer Business Consulting and Call Center Services and were established in 2002.
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Ayty Tech

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

São Paulo, Brazil

Services provided

24% Call Center Services

20% CRM Consulting and SI

20% IT Strategy Consulting +3 services

16% Customer Service Outsourcing

10% E-Commerce Development

10% IT Managed Services

Founded in 2008, Ayty Tech is a midsize answering service company. Their services include Call Center Services and CRM consulting and SI.
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São Paulo, Brazil

Av. Brigadeiro Faria Lima, 1685, Conj.3C
São Paulo, Brazil 01452-001

+ 55.11.3522.9211

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Bizpro Processos de Negócios

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Sao Paulo, Brazil

Services provided

20% Call Center Services

50% Customer Service Outsourcing

30% Back Office Outsourcing

Bizpro Processos de Negócios is a Customer Service Outsourcing company. The firm is in Sao Paulo, Brazil. Their team provides Customer Service Outsourcing and Back Office Outsourcing.
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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.

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We evaluate service providers using a structured methodology that combines:

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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.

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Top Call Center Services & Voice Services in Sao Paulo

List of the Top Sao Paulo Call Center Companies & Voice Services

Back Office Outsourcing for E-Commerce Co

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Reviewed 1 time in the past 6 months

Call Center Services for Digital Government Partner

Helpware CX is very responsive

Call Center Services for Third-Party Management Company

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Reviews mention Receptive

Call Center Services for Premium Coffee Brand

Customer Deployment for Consumer Products Company

Reviews mention Results-oriented

Back Office Outsourcing for Electronics Manufacturer

Customer Umbrella is very responsive

Reviewed 12 times in the past 6 months

Average Project Cost Breakdown

What Clients Have Said

SupportYourApp is very responsive

Reviews mention Team players

Call Center Services for Call Center Outsourcing Firm

Industry Experience

Select Industry to see insights

six eleven global services is very responsive

Call Center Staffing for Government Helpline

Industry Experience

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Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Industry Experience

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Average Project Cost Breakdown

What Clients Have Said

Combine Global Recruitment is very responsive

Reviews mention Passionate about their work

Customer Support Services for Oil & Gas Company

Customer Support Services for Car Dealer

Call Center Services for Automotive Services Company

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviewed 5 times in the past 6 months

Virtual Sales Limited is very responsive

Reviewed 2 times in the past 6 months

Average Project Cost Breakdown

What Clients Have Said

Valoris Center is very responsive

Sales Outsourcing Services for E-Commerce Fulfillment Co

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

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