Top 100 Inbound Call Centers

Specialty Answering Service is a call center outsourcing firm based in King of Prussia, Penn. Founded in 1985, they have about 30 employees and work with a national network of freelance customer support specialists. Their services consist of voice customer support and non-voice business process outsourcing.

Outsourcing Business Solutions is a Philadelphia, Pennsylvania-based marketing strategy company. They offer marketing strategy, web development, back office outsourcing, accounting, and more and were founded in 2020.

Flatworld Solutions is an outsourcing company headquartered in Princeton, N.J. Founded in 2006, they have a team of over 750 employees. The firm's international offices are based across India, the U.K, and the Philippines and has experience in nonvoice/ back office, transcription, and call center services. Their Clients mostly work in manufacturing, education, and healthcare industries. 

AMBS Call Center provides voice services from its Jackson, Mich. headquarters and additional locations in Grand Rapids, Mich. and Tampa, Fla. Founded in 1932, they have about 27 employees that serve a variety of clients in a range of sectors. 

SocialBloom is an email marketing company headquartered in Rochester, Minnesota. The small team focuses on email marketing, social media marketing, and direct marketing. The firm was established in 2020.

CrewBloom is an outsourcing partner based in New York. Founded in 2016, their team of around 60 employees provides back-office services and voice services.

Verbatim Virtual Receptionists is a call answering service company that was founded in 1997. Based in Thatcham, U.K., the team of about 10 employees does voice services and non-voice BPO and back-office services, including virtual receptionist, inbound appointment scheduling, B2B lead generation and qualification, and online customer support.

Founded in 2015, Peak Support is a Boston-based business process outsourcing (BPO) provider. Their approximately 250 employees provide both voice services like inbound appointment scheduling and B2C telemarketing. They also provide email- and chat-focused customer support.

Customer service outsourcing company CALLINNOV is in Oulad Bouʼabid, Morocco. The midsize agency was launched in 2010. Their services include customer service outsourcing, call center services, and back office outsourcing.

Tasks Expert is a social media marketing agency located in Killeen, Texas and Kalyan, India. The firm focuses on social media marketing and has a small team.The firm was founded in 2017.

GotYourBack Support is a back-office service company founded inV in 2019. With over 50 professionals, they offer voice and back-office services to clients ranging from startups to enterprises in the fields of IT, business services, and telecommunications.

Leadium is a voice services firm based in Alexandria, Va., with an additional office in Kiev, Ukraine. Founded in 2016, the team of 100 specializes in email marketing, market research and CRM consulting and SI. They work primarily with small business clients, mostly in the IT industry.

LexReception is a telecommunications firm founded in 2011. Based in Portland, Ore., the team of 2 employees specializes in voice services and non-Voice BPO/Back office services. They mainly serve clients in the legal industry. 

Based out of Margate, Florida, Answering Service Care offers voice services to small businesses. This includes answering a variety of phone call inquiries from stakeholders. The telecommunications vendor has fewer than 50 employees serving industries spanning from real estate to legal and medical. The company was founded in 1974.

MoreMeetings.com is a B2B sales appointment company headquartered in Rockland, Mass. Founded in 2001, they have a team of 15 employees. Their main focus lines are voice services and corporate training, primarily for the IT industry.

Founded in 2016, Cleverly is a marketing agency that offers lead generation and LinkedIn Ads to their clients. Their 50 employees are based out of Los Angeles.

Canaan Communication & Technologies Sdn Bhd is a BPO firm in Kula Lumpur, Malaysia. They have a team of around 15 employees and were founded in 2016. They provide non-voice BPO & back-office services, voice services, and corporate training for small businesses. 

Oworkers is a data entry outsourcing company based in London, with offices in Bulgaria, Madagascar, Cairo, and Hong Kong. The company, founded in 2012, has a staff of more than 200 that enables them to provide multi-lingual data entry and categorization, data annotation, and content moderation services to various companies. 

Pereus Marketing is a marketing agency located in King of Prussia, Pennsylvania. Founded in 2014, Pereus Marketing has about 10 employees. They specialize in voice services, direct marketing, marketing strategy, market research and business consulting. 

Launched in 2004, Contactopia is a midsize phone answering service. Their services include voice services and non-voice bpo/back office services. The company is headquartered in Sharjah, United Arab Emirates.

WiserBrand is a digital marketing agency based in New York City. Founded in 2015, the team of 17 specializes in SEO, web development and web design. They work primarily with midmarket clients, mostly in the legal and eCommerce industries.

Triniter is a BPO service company based in Miami, with offices in Chatrapatti, India and Davao City, Philippines. The company, founded in 2015, has more than 500 employees and provides voice services and non-voice BPO/back office services to small and midmarket companies.

SmartPA is the leading UK virtual assistant company, based in Edinburgh. Founded in 2008, they have over 300 employees that serve businesses of all sizes. Let SmartPA’s virtual assistants handle your and PA tasks remotely for a flexible monthly package.

Founded in 2015, Morph is a call center based in Belgrade, Serbia. They have over 50 employees that work primarily with small businesses based in the United States. They specialize in claims processing, customer service, and data entry.

AnswerForce is an answering services provider from Tualatin, Ore. It was founded in 1998 and currently has a team of 11 employees. AnswerForce specializes in voice services, but also provides non-voice BPO/back office services to clients from a variety of industries. 

One Umbrella is a SaaS & tech digital marketing growth company based in London. The company, founded in 2019, has a team of less than ten that provides social media marketing and PPC services. One Umbrella serves small and larger-sized companies in the business services, education, IT, and e-commerce industries.

Enshored is an outsourcing firm headquartered in Long Beach, Calif. with an office in Pasig City, Philippines. They are run by a team of 840 professionals who provide non-voice BPO/back-office, voice, and social media marketing services to businesses ranging from startups to enterprises. Their voice/call center services focus on customer support/experience, order processing, and other outbound services.

Voice Link of Columbus, Inc. Is a phone answering service. The small Columbus, Georgia-based firm was established in 1989. Their services include voice services.

Northern Lights Technology Development (TIANJIN) CO., LTD. Is a midsize software development firm launched in 2007. Their services include custom software development, web development, Artificial Intelligence, graphic design, and more. The agency is located in Tianjin, China.

Call center service LawyerLine was established in 2009. They are in Easton, Pennsylvania and Basking Ridge, New Jersey and have a midsize team. LawyerLine provides voice services.