Top 30 Call Center Outsourcing Companies in the United States

Call center outsourcing helps you cut costs by removing the need for extra infrastructure and staff. It gives you access to skilled agents, modern tools, and flexible staffing options during busy periods. This way, you can focus on your main business while ensuring better customer support.

• Cost Savings: Outsourced companies typically rely on their own resources, reducing the need for your business to make upfront investments in infrastructure and technologies.
• Access to Expertise: Your business can gain access to a team of highly-trained professionals who specialize in handling customer inquiries with speed and efficiency.
• Flexible Outsourcing: Your business may require more staff during peak times. So, with outsourced call centers, you can adjust the manpower you need accordingly.
• Focus on Core Operations: You can concentrate on the core business functions, such as product development, when call center services are outsourced.
• Improved Customer Service: Since call center outsourcing companies employ skilled agents, it enhances the quality of customer service for your business.
• Access to Technology and Infrastructure: Outsourced call centers invest in the latest technology, such as cloud-based systems, CRM tools, and AI-driven solutions. It allows your business to benefit from these advancements without any extra charges.

Working Solutions, Global Response, TTEC, Liveops, Five Star Call Centers, and MCI are some of the best call center outsourcing companies in the US.

Founded in 1996, Working Solutions is one of the earliest pioneers in virtual contact center outsourcing based in Dallas, Texas. It operates a large network of over 150,000 remote agents across the US and Canada. Plus, the company provides multichannel customer experience (CX) services, including customer care, sales, and back-office support.
Known for its Artificial Intelligence (AI) and Intelligent Agents (IA) blend, it combines automation with human touch. Likewise, it was also awarded as the Best Business Process Outsourcer (BPO) by Customer Contact Week 2025.

Pros:

• Offers a large, flexible remote agent network for scaling demand.
• Recognized multiple times for innovation and remote work excellence.
• Provides measurable operational improvements and cost reductions.

Cons:

• A fully virtual model may limit face-to-face collaboration.
• Specialized services can be costlier for smaller businesses.

Global Response is a family-owned call center outsourcing company with nearly five decades of experience, founded in 1974. It represents over 200 global brands across industries like retail, automotive, healthcare, and finance.
Additionally, it supports omnichannel communication through voice, email, chat, social media, and SMS. Furthermore, the company also earned recognition as a Clutch Top Company 2024 for inbound call center services, highlighting its consistent excellence in personalized customer experiences.

Pros:

• Offers both domestic and nearshore support for flexibility.
• Emphasizes brand-specific training for authentic customer interactions.
• Proven success in long-term client partnerships across industries.

Cons:

• On-site and hybrid options may not fit fully remote preferences.

TTEC, established in 1982 and based in Englewood, Colorado, is among the most trusted customer experience outsourcing leaders in the world. With over 50,000 employees spanning six continents and operations in 50+ languages, TTEC blends advanced AI systems with human empathy to redefine how businesses connect with their customers.
The company operates through two divisions: TTEC Engage, which delivers front-line services like customer engagement and tech support, and TTEC Digital, which builds intelligent platforms and AI-driven analytics for large-scale CX transformation.

Pros:

• Proven global footprint with consistent industry recognition.
• Offers full end-to-end CX strategy, consulting, and delivery.
• Strong technology partnerships with firms like Google, Cisco, and Microsoft.

Cons:

• Multiple integrations can require a longer onboarding period.

Liveops, headquartered in Scottsdale, Arizona, is one of the top call center outsourcing companies in the US, recognized for innovation and service quality. In fact, it has received multiple industry awards for redefining customer experience and workplace culture.
Established in 2000, Liveops connects businesses with a large network of independent, on-demand agents who deliver support across voice, email, and chat.

Pros:

• Scalable, flexible model that adapts quickly to demand changes.
• Experienced remote workforce ensures consistent service quality.
• Proven cost savings with reduced facility and staffing costs.

Cons:

• Lacks physical call centers.
• Integration with multiple systems can require extra setup.

Five Star Call Centers is also on the list best outsourcing companies in the US. It has a team of over 1,200 agents across five locations in the United States, Guatemala, and Mexico, along with hundreds of remote representatives nationwide. Headquartered in Sioux Falls, South Dakota, the company stands out for its global service delivery In fact, its services cover customer care, tech support, order processing, and sales support, all managed through cloud-based systems and AI-enhanced training programs. Founded in 1986, it has earned several honors, including Business.com’s Best Call Center Services Award and Inc. 5000 recognition.

Pros:

• Offers flexible onshore, nearshore, and remote service options.
• Recognized for employee retention and workplace culture.
• Advanced AI and omnichannel tools for efficient CX delivery.

Cons:

• Higher pricing for advanced tech integrations.
• Limited multilingual capacity compared to global providers.

MCI is a large-scale multinational BPO and CX solutions provider operating in eight countries with more than 5,000 employees. It was founded in 2002 with headquarters in Miami Beach, Florida. Likewise, this call center outsourcing company serves over 370 clients, including 125+ enterprise-level organizations, across industries like healthcare, fintech, telecom, and retail. Its strength lies in integrating AI-driven automation, natural language processing, and cloud-based services to modernize operations and customer engagement.

Pros:

• Global presence across North America, South America, Europe, Africa, and Asia.
• Offers both BPO and advanced AI technology under one platform.

Cons:

• Not suitable for small business needs.
• Lacks deep specialization due to a wide service range.

ResultsCX is a Florida-based customer experience management company that has been serving global brands for over three decades. With more than 26,000 employees and operations in 30+ engagement hubs, it is in the list of top call center outsourcing companies offering services in 16 different languages. Likewise, ResultsCX works across key industries such as healthcare, telecom, technology, retail, and financial services. Alongside, it has also earned multiple Stevie and Fortress Cybersecurity Awards for its excellence in leadership, innovation, and workplace culture.

Pros:

• Strong global presence with multilingual support.
• Recognized for employee engagement and corporate culture.

Cons:

• Heavy focus on technology may not fit companies seeking traditional call center setups.

Helpware is also a leading call centre outsourcing company in the US that mixes CX operations with in-house AI, tech, and media divisions. So, you can manage support and growth under one roof. Founded in 2015, it now runs 19 locations across 11 countries and serves in 45+ languages.Moreover, you get end-to-end coverage from customer support and tech support for data operations and content security. Likewise, the firm reports 400+ clients, 600+ projects, with strong review scores on Clutch, G2, and other sites.

Pros:

• Clear onboarding steps.
• Flexible staffing models, including seasonal and buffer hiring for peak seasons.

Cons:

• Heavy AI focus may not match teams seeking a simple voice-only setup.

SupportNinja is one of the fastest-rising outsourcing firms in the US. The company focuses on AI-enabled customer experience solutions with over a thousand agents, also called “Ninjas”, across global hubs. It offers multilingual support across industries such as SaaS, healthcare, fintech, and eCommerce. SupportNinja’s privacy-first approach ensures all systems meet top standards like the Health Insurance Portability and Accountability Act (HIPAA) and General Data Protection Regulation (GDPR). Moreover, the company earned recognition in the 2025 Excellence in Customer Service Awards and has been ranked among the Inc. 5000 fastest-growing private companies multiple times.

Pros:

• Strong focus on AI-powered and data-secure CX workflows.
• Recognized for high employee satisfaction and retention.

Cons:

• Transition and onboarding may take time for new clients.

Founded in 2014 and headquartered in Boise, Idaho, PartnerHero is among the best US call centre outsourcing companies. The company operates across 19 remote hubs and 6 global offices, supporting over 12 languages and serving 180+ brands worldwide. In 2025, PartnerHero joined forces with Crescendo to create an integrated AI + human CX model, combining automation with personalized care. With over 2,800 associates, it continues to push for a people-first outsourcing model that emphasizes integrity, diversity, and long-term impact.

Pros:

• Delivers end-to-end managed support solutions with AI integration.
• Provides multilingual and multicultural service coverage.
• Known for high adaptability across various industries.

Cons:

• Complex AI systems can require a detailed setup.
• Not ideal for short-term projects.

Common challenges in call center outsourcing include maintaining consistent service quality, protecting sensitive customer data, and avoiding miscommunication between agents and clients. Businesses also face reduced control over daily operations and the risk of hidden expenses in outsourcing contracts.

• Quality Control Issues: Outsourcing may reduce your control over service quality, making it harder to maintain consistent customer experiences. Plus, differences in training, tone, or process can affect how customers perceive your brand.
• Data Security Risks: Sharing customer data with third parties increases the chances of data leaks, breaches, or misuse. Moreover, without strict security protocols, sensitive information may fall into the wrong hands.
• Communication Gaps: Poorly trained agents can cause misunderstandings, leading to confusion between your brand and customers. Also, language barriers or a lack of product knowledge can further widen this gap.
• Limited Control Over Operations: External management limits your ability to monitor performance or address issues immediately. As a result, it slows down the decision-making process and impacts customer satisfaction.
• Hidden or Unexpected Costs: Some outsourcing deals include extra charges that can lead to higher expenses than expected.

To choose the best call center outsourcing company, first understand your business goals and the type of support you need. Then, look for a provider with solid industry experience, reliable technology, strong communication skills, and proven data security. Lastly, check reviews and ensure they can scale with your growing needs.

• Define Your Business Needs: Start by identifying what you want from outsourcing: customer support, lead generation, technical help, or sales. Knowing your goals helps you choose a company that fits your exact needs.
• Check Industry Experience: Go for companies that have proven experience in your industry. They’ll understand your customers better and handle queries with the right tone and knowledge.
• Evaluate Communication Skills: Ensure the agents have strong communication skills, both verbal and written. Clear communication builds trust and enhances your brand’s image.
• Review Technology and Tools: Modern call centers use advanced CRM systems, AI tools, and analytics to improve service quality. Therefore, choose a company that invests in up-to-date technology for efficiency and accuracy.
• Assess Scalability: As your business grows, so will your customer demands. So, pick a partner that can easily scale up or down based on your call volume and seasonal needs.
• Check Data Security Standards: Confirm that the outsourcing company follows strict security protocols and complies with data protection regulations like GDPR or HIPAA.
• Look for 24/7 Availability: If your customers are spread across different time zones, round-the-clock support is essential. Therefore, a company that offers 24/7 or multilingual support options will be a better choice.
• Read Client Reviews and Testimonials: Go through reviews, case studies, and client testimonials to get real insights into the company’s reliability, service quality, and performance.
• Compare Pricing Models: Understand how each company charges, per call, per minute, or per hour. Then, compare rates, but don’t compromise on quality just to save money.
• Request a Trial or Pilot Program: Many outsourcing companies offer trial runs. So, use free trials to test their performance, response time, and customer handling before committing long-term.

Outsourcing customer support and communication services makes business operations smoother and more focused. It lets professionals handle customer interactions with expert support and modern tools while you concentrate on growth.

Having said that, outsourcing has its downsides as well. You may face limited control, data security concerns, or communication gaps. Plus, maintaining brand consistency can also become a challenge when the service is handled externally.

If you’d rather not deal with the issues that come with outsourcing, you can choose to handle customer support and communication services on your own if you have enough budget and manpower. And, to do so, you need to invest in a proper communication tool.

That is where Calilio comes in with its virtual call center software, offering extensive services. In particular, it comes with features like advanced features like IVR, CRM integration and multichannel communication. Likewise, it also offers call routing, recording, and monitoring for analyzing the customer service.