Top 100 Inbound Call Centers in the United States

Sound Telecom is an answering services provider based in Spokane, Wash., with a team of 25. Founded in 1986, the team provides voice and transcription services for clients in a variety of industry.

Gabtech Global LLC is a customer service outsourcing company. Founded in 2009, the midsize agency is in Peoria, Arizona. Their team focuses on customer service outsourcing, HR services, call center services, IT staff augmentation, and more.

DialAmerica is a business process outsourcing firm headquartered in Mahwah, N.J. with offices in New York City, Athens, Ga., Charleston, and Cleveland. Founded in 1957, they have over 5000 employees. Their services include voice call process outsourcing, but they offer non-voice services as well. 

Squeeze Media is a voice services provider based in Orem, Utah. Their team of over 50 supports businesses of all sizes across a range of industries, such as financial services, health care, and consumer products. Founded in 2009, they also provide non-voice BPO services.

Invensis is an IT, BPO, and call center services company based in Bangalore, India, with an office in Wilmington, Del. Founded in 2000, Invensis's team of more than 350 employees offer non-voice BPO/back office services and call center services.

AnswerConnect is a contact center solutions firm based in Portland, Ore. Established in 2002, they have 38 employees, and offer a wide variety of voice-oriented customer service options. Their solutions include voice and non-voice BPO/back office services.

Davinci Virtual Office Solutions is a call answering company of 82 employees, which was founded in 2005. Based in Salt Lake City, they offer voice services. They serve small and midmarket businesses in a variety of industries, including healthcare, real estate, business, and financial services.

Gold Cross Answering Service is a live answering service company located in Chippewa Falls, Wis. They were founded in 1980. With about 9 employees, they provide voice services and non-voice back-office services to clients primarily in the real estate, healthcare, and medial industries.

Global Response is a contact center company based in Margate, Fla., that was established in 1974. Their team of more than 450 employees offers contact center services, inbound sales processing, order processing, chat support, email response, and social media support.

Ruby Receptionists is a voice services firm based in Portland, Oregon, that was established in 2003. Their team of more than 250 employees offers voice call support, appointment management, and conventional answering services.

TeleContact is an outsourced telemarketing solutions company headquartered in Riverbank, Calif. with another office in Modesto, Calif. The company was founded in 1994 and now employs a team of around 50 that is entirely dedicated to voice services.

Slingfly is a small SEO agency. The Fayetteville, Arkansas-based agency was founded in 2009. Their team focuses on search engine optimization, call center services, content writing services, pay per click, and more.

Contact One is a full-service call center outsourcing firm in Tuscon, Ariz. They were founded in 1981 and currently maintain a staff of just over 40 employees. They provide voice services to a range of clients in a variety of sectors.

MAP Communications is an employee-owned virtual receptionist and live 24-hour answering service headquartered in Chesapeake, Va. Founded in 1991, their team of 65 focuses on industries like business services, real estate, education, healthcare, government, legal, and hospitality and leisure. They specialize in voice services.

Answering Legal is a voice services firm based in Nesconset, N.Y. Founded in 2013, their team serves clients in the legal sector. Services include virtual reception, inbound appointment scheduling, and customer support.

Anserve Inc. is a phone answering services provider based in Butler, N.J. The company, founded in 1969, has more than 50 employees and provides voice services to mid-market and small companies and institutions in the medical, consumer products & services, dental, government, legal, and utilities industries.

VoiceNation is a live answering service company based in Buford, Ga. It was established in 2003 and now employs a team of 50. VoiceNation provides voice and non-voice BPO and back-office services.

AdvancedMD is a business process outsourcing firm for the healthcare industry. Based in South Jordan, Utah, they have  a branch office in Springfield, Mass. The team was founded in 1999 and includes 590 employees. AdvancedMD offers a wide variety of solutions for independent practices. Their services include non-voice BPO, voice call outsourcing, and integration of medical and enterprise software.

RemoteReps247, a sales outsourcing company, was launched in 2022. Their small team is located in New York, New York. The company offers sales outsourcing, call center services, and customer service outsourcing.

Founded in 2017, Bandalier is an HR agency. Their team of around 60 employees is based in Binghamton, N.Y. The team focuses solely on HR.

Back Office Betties is a virtual receptionist agency based n Scottsdale, Ariz. Founded in 2014, this company has 13 employees. Services provided by Back Office Betties are focused on voice services and receptionist work for legal firms and small businesses.

OnBrand24 is a call center services company from Beverly, Mass. with offices in Savannah, Ga., Portsmouth, N.H., and Boston. It was founded in 1980 and has grown to a team of about 225 employees. OnBrand24 offers both voice services and non-voice/BPO back office services to mid-size and large enterprise clients.

AnswerLive is a call center and BPO agency founded in 1982. They have headquarters in Gastonia, N.C. and additional offices in Grants Pass, Ore. and Lubbock, Texas. Their team of 11 specialists offers voice services and non-voice BPO primarily to small businesses. 
 

VSA, Inc. is a B2B telesales company headquartered in Haddon Township, N.J. They also have an office in Philadelphia. The company, founded in 2001, has a team of 100 people who specialize in voice services. They mostly work with mid-market businesses, but also have small and enterprise clients. Working across industries, they have built expertise in the health care, education and manufacturing and logistics industries.

GCS Agents is a contact center firm in Salisbury, N.C., founded in 2001. The team of 300 specializes in voice services, consulting, and BPO services for its majority midmarket clients across multiple industries. 

Reel Axis is a marketing agency based in Carlsbad, Calif., and founded in 2018 with more than 10 employees. They offer marketing strategy, social media marketing, and content marketing solutions for clients ranging from startups to large firms.

Abby Connect is a virtual receptionist firm in Las Vegas. Established in 2005, the team now has 40+ employees. They provide virtual receptionist and answering services for small businesses and mid-market companies in the financial, legal, and business services industries. 

Atelier Lumikha is a non-voice bpo/back office services company. Launched in 2005, the team focuses on non-voice bpo/back office services, voice services, content marketing, corporate training, and more. Their small company is Dumaguete, Philippines-based.

Nexa is a virtual assistant agency based in Phoenix. Founded in 1982, their team of around 440 employees focuses on voice services.

Direct Answer is a full-service e-commerce logistics and support firm in Oxon Hill, Md. Founded in 1991, they have about 8 employees that serve a range of clients in a variety of sectors. Direct Answer provides voice services and non-voice BPO.