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Top Call Center Companies

Inbound and outbound contact center solutions including customer support, technical helpdesk, sales telemarketing, appointment setting, lead qualification, surveys, and multilingual support with omnichannel integration and quality monitoring.

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List of the Best Call Center Agencies

Belkins

Belkins

Premier Verified

4.5

8 Reviews

$10000+

$<25 / hr

50-249

Denver, CO

Services Provided
10% Call Center
70% Sales Outsourcing
10% CRM Consulting and SI
+1 service
Email Marketing

Belkins is a lead generation and outbound marketing company that specializes in creating effective sales campaigns through email, LinkedIn outreach, and cold-calling services. Reviews consistently highlight their ability to generate qualified leads, with 100% of reviewers noting successful appointment bookings and measurable outcomes. Clients praise Belkins' professionalism, timely communication, and high-quality project management, with no significant areas for improvement suggested.

Martal Group

Martal Group

Premier Verified

4.7

10 Reviews

$1000+

$25 - $49 / hr

250-999

Oakville, Canada

Services Provided
10% Call Center
70% Sales Outsourcing
10% AI Agents
+1 service
Email Marketing

Martal Group is a lead generation and sales engagement company, providing services such as outbound call center and telemarketing services. They have a mixed feedback record: approximately 70% of clients praise their responsiveness and ability to generate leads, while 30% express concerns about communication and the effectiveness of their campaigns. Their expertise in creating effective outreach strategies and adaptable project management is frequently highlighted.

A-SALES AB

A-SALES AB

Premier Verified

4.4

8 Reviews

$1000+

$<25 / hr

50-249

Ed, Sweden

Services Provided
10% Call Center
80% Sales Outsourcing
10% Email Marketing

A-SALES AB specializes in outbound sales and lead generation services. With a strong emphasis on creating tailored outreach campaigns, the company consistently delivers measurable results, averaging 10-22 qualified meetings per month for various clients. Client feedback is overwhelmingly positive, with 100% of reviewers highlighting A-SALES AB's precision targeting and reliable project management, while none reported areas for significant improvement.

Global Response

Global Response

Premier Verified

4.5

10 Reviews

$5000+

$<25 / hr

1000-9999

Margate, FL

Services Provided
20% Call Center
50% Customer Service Outsourcing
15% IT Managed Services
+1 service
Sales Outsourcing

Global Response is a company specializing in Contact Center Services, offering comprehensive Customer Support and Inbound Call Center solutions. Reviews indicate highly responsive and attentive service, with 100% of clients commending their customer care capabilities and strategic partnership approach. Their ability to save clients substantial time and costs is repeatedly highlighted, although some suggest enhancements in technology for improved service delivery.

Hugo Inc.

Hugo Inc.

Premier Verified

4.1

9 Reviews

$1000+

$<25 / hr

1000-9999

Chicago, IL

Services Provided
20% Call Center
25% Customer Service Outsourcing
15% Back Office Outsourcing
+4 services
Content Moderation Services Data Annotation Services Finance & Accounting Outsourcing (FAO) 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.

SupportYourApp

SupportYourApp

Premier Verified

4.4

8 Reviews

$1000+

$<25 / hr

1000-9999

Wilmington, DE

Services Provided
25% Call Center
55% Customer Service Outsourcing
15% Back Office Outsourcing
+1 service
Data Annotation Services

SupportYourApp is a professional Contact Center Services provider specializing in comprehensive Customer Support Services, including 24/7 Inbound and Outbound Call Center operations. Across various reviews, their commitment to flexibility, scalability, and high-quality service delivery is consistently praised. Approximately 90% of reviewers highlight their proactive communication and value for cost, underscoring their adeptness in managing diverse telephonic support needs efficiently.

Smith.ai

Smith.ai

Premier Verified

4.1

9 Reviews

$10000+

$100 - $149 / hr

250-999

Luigiton, South Georgia and the South Sandwich Islands

Services Provided
50% Call Center
10% Customer Service Outsourcing
10% Sales Outsourcing
+3 services
AI Development Back Office Outsourcing Conversion Optimization

Smith.ai is a company specializing in Contact Center Services, offering comprehensive virtual receptionist solutions including inbound and outbound call handling, appointment scheduling, and customer support services. With a strong emphasis on professionalism, 78% of reviews highlight their reliable customer service and timely communication, while some, approximately 11%, express concerns over spam call issues. Overall, Smith.ai maintains high satisfaction rates due to their seamless integration and responsiveness to client needs.

XACT

XACT

Premier Verified

4.4

10 Reviews

$1000+

$25 - $49 / hr

250-999

Orlando, FL

Services Provided
45% Call Center
20% Customer Service Outsourcing
15% Sales Outsourcing
+2 services
Back Office Outsourcing Staffing

XACT is a comprehensive provider of Contact Center Services, offering solutions including Inbound and Outbound Call Center, Customer Support Services, and Telephonic Support. Reviews indicate strong overall satisfaction, with approximately 85% of feedback highlighting their effective communication, adaptability, and partnership approach. Despite minor challenges in agent proficiency, XACT's commitment to process refinement and customer satisfaction is consistently praised across various industries.

Simply Contact

Simply Contact

Premier Verified

4.6

9 Reviews

$1000+

$<25 / hr

250-999

Warszawa, Poland

Services Provided
30% Call Center
60% 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.

TDCX

TDCX

Premier Verified

4.6

10 Reviews

$100000+

$100 - $149 / hr

10000+

Singapore, Singapore

Services Provided
10% Call Center
50% Customer Service Outsourcing
20% Sales Outsourcing
+2 services
Business Consulting 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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Frequently asked Questions

What services do call centers typically provide for businesses?

Call centers handle inbound support (customer inquiries, technical help, order processing), outbound tasks (sales calls, lead generation, surveys), appointment scheduling, emergency hotlines, and overflow during peak times — all with trained agents, multilingual options, and CRM integration.

Why should a business outsource to a call center instead of hiring in-house?

Outsourcing provides 24/7 coverage without overtime costs, access to trained agents and advanced tech (IVR, analytics), scalability during busy seasons, and lower overhead — often saving 30–60% compared to building an internal team.

How long does it take to set up a call center service?

Basic inbound/outbound setup usually takes 2–6 weeks (scripting, training, integration); complex custom campaigns or multilingual programs often 1–3 months.

What is the typical cost for call center services?

Per-minute or per-call pricing ranges from $0.50–$2.00/minute; monthly retainers for dedicated agents often $3,000–$15,000+ depending on volume, hours, and specialization.

Can call centers handle multilingual or industry-specific support?

Yes — many offer agents fluent in multiple languages and trained in verticals like healthcare, finance, e-commerce, or tech support to ensure accurate, compliant responses.

Does call center outsourcing improve customer satisfaction?

Yes — professional agents, faster response times, and 24/7 availability often boost CSAT scores, reduce wait times, and increase first-call resolution rates significantly.

What about data security and compliance in call centers?

Reputable providers follow PCI-DSS, HIPAA, GDPR, and SOC 2 standards with encrypted calls, secure recording storage, agent training, and regular audits to protect customer data.

How do you measure call center performance and ROI?

Key metrics include average handle time, first-call resolution, customer satisfaction (CSAT/NPS), conversion rates, abandoned calls, and cost per contact — most providers supply real-time dashboards and monthly reports.