25 Largest Call Center Companies in the US

The largest call center companies in the US are Teleperformance, Concentrix, Foundever, Alorica, and TTEC. They help businesses handle high volumes of interactions efficiently across industries like healthcare, finance, and technology.

(Methodology: This list is based on company reports and industry data identifying the largest US call center operations. Selections are determined by employee headcount, number of locations, and overall market influence. It distinguishes between outsourced BPO providers and large in-house corporate teams to show overall operational scale rather than a strict ranking.)

These firms are the "Big Players" that provide outsourced customer experience, technical support, and business process management to other corporations worldwide.
 

1. Teleperformance

Teleperformance is a major provider in the US call center and customer experience market, supporting large-scale enterprise and government programs nationwide. The company delivers customer care, technical support, and back-office services through onshore, nearshore, and remote agent models, serving highly regulated and mission-critical industries.

• Established: 1978
• Annual Revenue: ~$11.2 Billion
• Total Employees: ~500,000 Global
• Headquarters: Paris, France (US HQ: Murray, Utah)
• Primary US Sectors: Healthcare, Finance, Tech, and Government

2. Concentrix

Concentrix is a leading US-based customer experience and technology-enabled services provider, known for managing complex, high-volume customer interactions for global brands. The company combines contact center operations with digital transformation, analytics, and CX consulting, making it a strategic partner for organizations undergoing large-scale customer experience modernization.

• Established: 1983
• Annual Revenue: ~$10.1 Billion
• Total Employees: ~450,000 Global
• Headquarters: Newark, California, USA
• Primary US Sectors: Technology, Financial Services, Healthcare, Retail, and Automotive

3. Foundever

Foundever is a global customer experience provider formed through the merger of Sitel Group and SYKES Solutions. The company delivers customer care and technical support through a cloud-first model that enables flexible on-site and remote operations for major global brands.

• Established: 1985
• Annual Revenue: ~$4.0 Billion
• Total Employees: ~170,000 Global
• Headquarters: Miami, Florida, USA
• Primary US Sectors: Travel & Hospitality, Retail/E-commerce, Healthcare, and Finance

4. Alorica

Alorica is one of the largest minority-owned BPO providers in the world, renowned for its massive footprint in the North American market. Moreover, it is one of the best healthcare call center companies in the US. The company specializes in delivering high-volume, digitally charged customer experiences through a “performance-meets-precision” delivery model.

• Established: 1999
• Annual Revenue: ~$2.4–$3.0 Billion
• Total Employees: ~100,000 Global
• Headquarters: Irvine, California, USA
• Primary US Sectors: Healthcare, Financial Services, Retail/E-commerce, and Technology

5. TTEC

TTEC is a US-based customer experience technology and services company focused on the full customer journey. The company operates through two segments, TTEC Digital for CX technology and TTEC Engage for customer care delivery. This model allows TTEC to help enterprise clients modernize contact centers while supporting large US-based remote and on-site workforces.

• Established: 1982
• Annual Revenue: ~$2.4 Billion
• Total Employees: ~60,000 Global
• Headquarters: Englewood, Colorado, USA
• Primary US Sectors: Public Sector, Healthcare, Financial Services, and Automotive

6. Sutherland Global Services

Sutherland Global Services is a leading US-based digital transformation and customer experience company that helps enterprises optimize front-to-back office processes. The company combines design thinking with proprietary AI tools to streamline operations, improve efficiency, and anticipate customer needs across industries.

• Established: 1986
• Annual Revenue: ~$2.4 Billion
• Total Employees: ~75,000 Global
• Headquarters: Pittsford, New York, USA
• Primary US Sectors: Technology, Banking & Insurance, Mortgage Services, and Entertainment/Gaming

7. Conduent

Conduent is a premier provider of diversified business process services that manages mission-critical interactions for both commercial enterprises and government agencies. In the US market, they are a primary force behind large-scale public sector programs, including automated tolling, healthcare eligibility, and digital payments.

• Established: 2017
• Annual Revenue: ~$3.8 Billion
• Total Employees: ~55,000 Global
• Headquarters: Florham Park, New Jersey, USA
• Primary US Sectors: Public Sector (Government), Healthcare, Transportation, and Financial Services

8. TaskUs

TaskUs is one of the top call center and digital BPO companies in the US, recognized for supporting high-growth technology companies and next-generation digital brands. Purpose-built for the modern digital economy, TaskUs delivers CX solutions, Trust & Safety services, and advanced AI support for some of the world’s most innovative platforms.

• Established: 2008
• Annual Revenue: ~$1.14 Billion
• Total Employees: ~63,800 Global
• Headquarters: New Braunfels, Texas, USA
• Primary US Sectors: Hi-Tech, Social Media, FinTech, and HealthTec

9. VXI Global Solutions

VXI Global Solutions is one of the leading call center outsourcing companies in the US, known for its technical expertise and high-performance sales culture. Backed by Bain Capital, the company has a strong operational presence across North America and mainland China. VXI focuses on CX Acceleration using proprietary tools and AI-driven training to deliver high-touch customer support for global telecom and consumer electronics brands.

• Established: 1998
• Annual Revenue: ~$1.6 Billion
• Total Employees: ~42,000 Global
• Headquarters: Los Angeles, California, USA
• Primary US Sectors: Communications & Media, Financial Services, Technology, and Retail

10. EXL Service

EXL Service is a leading US-based company specializing in analytics, digital operations, and business process management. The firm helps organizations transform and improve operational performance using data, AI, and industry expertise. It applies advanced analytics and machine learning to automate workflows, enhance customer engagement, and deliver better outcomes across complex business functions has transitioned into a global leader in Agentic AI and advanced technology solutions.

• Established: 1999
• Annual Revenue: ~$2.08 Billion
• Total Employees: ~63,000 Global
• Headquarters: New York, NY, USA
• Primary US Sectors: Insurance, Banking & Financial Services, Healthcare, and Utilities

11. Genpact

Genpact is an American information technology services and consulting firm that has evolved into a global leader in Agentic AI and advanced technology solutions. Founded as a captive unit of General Electric, it is now a publicly traded company on the New York Stock Exchange. Genpact specializes in digital operations and Data-Tech-AI services, with strong expertise in process intelligence rooted in Lean and Six Sigma methodologies.

• Established: 1997
• Annual Revenue: ~$5.1 Billion
• Total Employees: ~147,000 Global
• Headquarters: New York City, USA
• Primary US Sectors: Financial Services, Consumer Goods & Retail, Life Sciences, and Healthcare

12. Transcom

Transcom is a Swedish-founded global provider of digital customer experience with a growing presence in the US market. The company supports both fast-growing disruptor brands and established enterprises. Its “Smart-Shoring” model combines onshore US agents with nearshore and offshore teams to optimize cost and quality.

• Established: 1995
• Annual Revenue: ~$820 Million
• Total Employees: ~33,000 Global
• Headquarters: Stockholm, Sweden (US Operations based in Greenville, SC)
• Primary US Sectors: E-commerce & Tech, FinTech, and Logistics

13. IntouchCX

IntouchCX (formerly 24‑7 Intouch) is a global customer experience and contact center outsourcing provider with a notable presence supporting US enterprise customer engagement programs. The company delivers omnichannel support across voice, chat, email, and social media, integrating technology and human service to enhance customer interactions.

• Established: 2000
• Annual Revenue: ~$1.2 Billion
• Total Employees: ~25,000 Global
• Headquarters: Aurora, Colorado, US
• Primary US Sectors: E-commerce & Retail, Technology/SaaS, Media & Entertainment, and Food Delivery

14. IBEX

IBEX is a leading digital customer experience provider known for its “BPO 2.0” approach, supporting high-growth startups, scale-ups, and enterprise brands across the customer lifecycle. The company blends AI-driven technology, including its proprietary Wave iX solutions, with human expertise to deliver omnichannel and digital-first CX at scale.

• Established: 2017
• Annual Revenue: ~$620 Million
• Total Employees: ~36,000 Global
• Headquarters: Washington, D.C., USA
• Primary US Sectors: Retail & E-commerce, HealthTech, FinTech, and Travel & Logistics

15. ResultsCX

ResultsCX is a Customer Experience Management (CXM) provider that designs and delivers digitally influenced, resolution-centered customer journeys. The company combines its proprietary IntelliAgent AI platform with human-led service to manage complex interactions at scale. Through its “3D” model, Design, Deploy, and Deliver, ResultsCX helps large enterprises improve efficiency, accelerate revenue, and enhance customer outcomes.

• Established: 1990
• Annual Revenue: ~$3.2 Billion
• Total Employees: ~26,000 Global
• Headquarters: Fort Lauderdale, Florida, USA
• Primary US Sectors: Healthcare, Banking & Financial Services, Telecom & Media, Retail, and Fast-Growth Tech

Unlike the companies above, these organizations run their own massive internal call centers to support their own products and services.
 

16. AT&T

AT&T operates one of the largest in-house call center networks in the United States to support its wireless, broadband, and enterprise services. The company employs tens of thousands of customer service, technical support, and sales agents across US-based contact centers and remote work programs. These internal teams handle billing support, network troubleshooting, device assistance, and account management directly for AT&T customers.

• Established: 1885
• Total Employees: ~141,000 Global
• Headquarters: Dallas, Texas
• Primary US Sectors: Wireless Mobility, Consumer Fiber, and Business Connectivity

17. UnitedHealth Group

UnitedHealth Group (UHG) relies on an extensive in-house healthcare contact center ecosystem to support its UnitedHealthcare insurance platform and Optum Health services division. Their internal agents manage incredibly complex interactions, ranging from claims adjudication and clinical coordination to helping members navigate the Medicare and Medicaid systems.

• Established: 1977
• Total Employees: ~400,000 Global
• Headquarters: Minnetonka, Minnesota, USA
• Primary US Sectors: Medicare & Retirement, Employer & Individual Plans, Pharmacy Benefits (OptumRx), and Clinical Care Coordination

18. Verizon

Verizon maintains one of the largest in-house customer service operations in the United States, supporting more than 146 million wireless subscribers and an extensive fiber-optic network. The company uses a hybrid service model, relying on a large domestic workforce for technical troubleshooting and complex account management. This is complemented by 24/7 digital support through its Virtual Contact Center technology.

• Established: 2000
• Total Employees: ~89,900
• Headquarters: New York City, NY, USA
• Primary US Sectors: Wireless Mobility (Consumer & Business), Fiber Broadband (Fios), and 5G Home Internet

19. Wells Fargo

Wells Fargo operates a massive in-house customer service network that is central to its status as one of the largest financial institutions in the US. Its internal call centers are highly specialized, handling sensitive transactions such as mortgage servicing, wealth management, and fraud prevention. The bank has recently focused on “Data-Tech-AI” initiatives to streamline operations while also navigating a significant labor movement.

• Established: 1852
• Total Employees: ~205,000 Global
• Headquarters: San Francisco, California, USA
• Primary US Sectors: Consumer Banking, Home Mortgages, Credit Cards, and Wealth & Investment Management

20. Amazon

Amazon operates a massive in-house customer service and support organization to manage its e-commerce, logistics, device, and cloud businesses. Its internal teams handle order support, returns, account issues, delivery coordination, and technical assistance for Amazon devices and services.

• Established: 1994
• Total Employees: ~1.46 Million
• Headquarters: Seattle, Washington, USA
• Primary US Sectors: E-commerce Order/Logistics Support, Technical Support (Alexa/Kindle), AWS Billing/Account Management, and Prime Membership Services

21. Bank of America

Bank of America operates one of the world's most sophisticated internal customer service ecosystems, integrating traditional human expertise with industry-leading digital innovation. Their internal support structure is divided across specialized divisions, including Consumer Banking, Global Wealth (Merrill), and Global Markets, ensuring that clients receive tailored assistance from subject matter experts.

• Established: 1904
• Total Employees: ~213,000 Global
• Headquarters: Charlotte, North Carolina, USA
• Primary US Sectors: Consumer Banking, Credit Card Services, Merrill Investment Support, and Small Business Solutions

22. JPMorgan Chase

JPMorgan Chase operates the largest in-house banking customer service network in the United States, supporting more than 80 million customers across its consumer and institutional brands. Its internal teams handle a wide range of services, including everyday banking, credit card support, and account management. The organization also manages complex, high-risk interactions such as fraud prevention and private wealth services through specialized in-house teams.

• Established: 2000
• Total Employees: ~310,000 Global
• Headquarters: Park Avenue, New York City, USA
• Primary US Sectors: Consumer & Community Banking (Chase), Investment Banking, Asset & Wealth Management, and Commercial Banking

23. Comcast (Xfinity)

Comcast operates a large in-house customer service organization supporting its Xfinity residential brand and Comcast Business services. The company manages millions of customer connections, with internal teams handling technical support, billing, service provisioning, and account management across domestic call centers and retail locations.

• Established: 1963
• Total Employees: 182,000 Global
• Headquarters: Philadelphia, Pennsylvania, US
• Primary US Sectors: Broadband/Xfinity, Mobile (Xfinity Mobile), Cable TV, and NBCUniversal

24. Blue Cross Blue Shield

Blue Cross Blue Shield is a national federation of 33 independent and locally operated health insurance companies that collectively provide coverage to one in three Americans. Because BCBS is a federation rather than a single entity, its massive in-house call center operations are distributed across the country, with major employers like Elevance Health (formerly Anthem) and Health Care Service Corporation (HCSC) managing the largest domestic hubs.

• Established: 1929 (Blue Cross) / 1939 (Blue Shield); merged in 1982
• Total Employees: ~150,000
• Headquarters: Chicago, Illinois, US
• Primary US Sectors: Commercial Health Insurance, Medicare, Medicaid, and Federal Employee Program (FEP)

25. Humana

Humana is a leading American health insurance company that operates an extensive internal customer service network focused on integrated care delivery. Their in-house support teams are critical to managing the complex needs of their Medicare Advantage, Medicaid, and military (TRICARE) members.

• Established: 1961
• Total Employees: ~65,700 Global
• Headquarters: Louisville, Kentucky, USA
• Primary US Sectors: Medicare Advantage (MA), CenterWell (Health Services), and Medicaid

The largest call centers in the United States serve as a backbone for customer support and service delivery across multiple industries. Their massive operations are supported by extensive workforces, standardized processes, and advanced service models that enable them to meet the needs of diverse clients and customers nationwide.

While traditional outsourcing has been a popular approach, it can present challenges such as reduced control over service quality, higher long-term costs, inconsistent customer handling, and data privacy concerns. As a result, many companies are increasingly exploring in-house and technology-driven alternatives to manage customer communications more effectively.