Top 100 Inbound Call Centers in the United States
December 2023Looking for a top inbound call center in the United States?
Inbound call centers can make all the difference to your business.
To assist you in your search for a partner, we’ve compiled this list of the top inbound call centers in United States. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best United States Inbound Call Center Companies
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1
- $1,000+
- 1,000 - 9,999 employees
- Denver, CO
Cience is a PaaS (People as a Service) company based in Los Angeles. It has offices in Ukraine and Manila and was established in 2015. Their team of more than 550 employees offers voice services, conversion optimization, and CRM consulting and SI services.
Clients
- Nasdaq
- US Bank
- Salesforce
Industries
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CIENCE Technologies provided appointment-setting and cold-calling services for an IT services and solutions company. This also involved outreach campaigns, cold emailing, and cold messaging on LinkedIn.
"The appointment generation process was impressive."
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2
- $1,000+
- 250 - 999 employees
- Orlando, FL
XACT is a telecommunications company, founded in 1998 and located in Orlando, Fla. They have 69 employees specializing in custom-designed contact center solutions for companies in business services, finance, and consumer products and services. They offer voice services, help desk and web support, marketing, and virtual receptionist services.
Clients
- Culinary Institute of America
Industries
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A catalog company has engaged XACT for call center services. They primarily handle incoming calls from customers placing orders and are responsible for entering them into the client's internal system.
“They’re very interactive and act like a partner for us.”
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3
- $5,000+
- 50 - 249 employees
- Denver, CO
Belkins is a technology company that leverages proprietary technology and a unique methodology to set appointments with target client prospects for revenue leaders in a variety of industries. Our award-winning, blended SAAS and Service model has been fine-tuned over the last 5 years and has supported hundreds of clients globally.
Clients
- Cengage
- Omnicharge
- Sekisui Products
- Born & Bred Creative
Industries
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Belkins created email templates and implemented a LinkedIn outreach strategy for a design company. They monitored campaigns for ongoing optimization and built a database of high-quality prospects.
"Their data-driven insights were invaluable."
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4
- $1,000+
- 50 - 249 employees
- San Francisco, CA
Martal Group is a sales agency based in Oakville, Canada and San Francisco. Founded in 2009, their team currently consists of 70 employees, who serve mostly technology companies in SaaS, Enterprise software and IT sectors. They offer services in outbound lead generation, appointment setting, account management, and sales.
Clients
- Bosch
- Zoho
- Halo
- MicroFocus
Industries
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A sales technology company has hired Martal Group to help expand their platform's user adoption. The team has worked closely with the client to make their conversion acceleration process more efficient.
"The knowledge and experience of Martal Group's sales team are what sets them apart."
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5
- $1,000+
- 250 - 999 employees
- Portland, OR
Prialto is a midsize non-voice bpo/back office services company. Headquartered in Portland, Oregon; Guatemala City, Guatemala and Manila, Philippines, the company was launched in 2008. Their services include non-voice bpo/back office services and voice services.
Clients
- Headline
- Woodruff Sawyer
- Rapid7
- Graham Company
Industries
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Prialto provides customer service support for a green technology company. The team is responsible for project management, scheduling, customer relations, content development, HR, and R&D operations.
"We are exceedingly happy with our Prialto experience."
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6
- Undisclosed
- 50 - 249 employees
- Scottsdale, AZ
Intelemark is an appointment setting and B2B lead generation company based in Scottsdale, Ariz. The company, founded in 1999, has more than 25 employees who provide voice and other marketing services to various companies.
Clients
- Dow Jones
- FedEx
- Amazon
- Pfizer
Industries
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Intelemark provides cold calling services for a national electrical supplier. After creating scripts with the stakeholders, the team contacts prospective clients and sets appointments between them and the firm.
“Their calls have been seamless — they act and operate as if they’re an extension of our company.”
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7
- $1,000+
- 50 - 249 employees
- Berkeley, CA
Wing Assistant, a back office outsourcing company, was established in 2018. Their midsize team is located in Berkeley, California. Their services include back office outsourcing, customer service outsourcing, sales outsourcing, call center services, and more.
Industries
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Wing Assistant develops a social media strategy and creates content for a digital marketing company. The team is responsible for setting a weekly editorial calendar, posting, and responding to comments.
"I’m able to get this quality of work within my budget."
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8
- $1,000+
- 50 - 249 employees
- Afton, WY
Wow24-7 is an omnichannel customer outsourcing company based in Kyiv, Ukraine. Founded in 2016, Wow24-7 provides non-voice BPO/back office services and voice services.
Clients
- The App Solutions
- Gita Jewelry
- StudentShare
Industries
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WOW24-7 provides after-hours phone and online support for a monitoring device manufacturer. They also offer technical assistance and augment the internal team's staff during business hours.
"We are impressed by how much their staff cares about making a difference with their work."
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9
- Undisclosed
- 10 - 49 employees
- Garden City, NY
Go Answer is a leading bilingual contact center, providing 24/7 voice, web-chat, email, and ticketing services for large and small businesses. They serve multiple industries such as home services, property management, e-commerce, healthcare, transportation, and fintech. Go Answer also has a bilingual dedicated legal division that strictly handles legal intake and retainer services for law firms across the United States. Go Answer was founded in 2012 and is based in New York, with additional state-of-the-art call centers in St. Lucia and Florida. Go Answer understands the importance of being a true extension of their clients brand. They provide friendly, professional and expert answering services, virtual reception services, and custom contact center solutions that reflect the values and reputation of your company
Clients
- Century21
- New York Daily News
- LensDirect.com
- Parker & Waichman
Industries
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Go Answer was hired by an e-commerce retailer as their primary call center for their business. The team provides about 120 agents during peak hours and handles 75% of their customers' calls.
"We have a great relationship with them and we love their service."
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10
- Undisclosed
- 50 - 249 employees
- Margate, FL
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.
Clients
- Keiser University
- Debt.com
- McDonald's
- Becton Dickinson (BD)
Industries
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Answering Service Care provides call center services for a property management company. The team answers the client's phone calls and speaks to their customers, and the client has a record of the calls.
"I'm most impressed with having a record of all calls."
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11
- $1,000+
- 250 - 999 employees
- Miami Beach, FL
Uassist.ME is a virtual assistance services firm founded in 2009. Based in El Salvador, the team of over 150 employees specializes in non-voice BPO/back office services, voice services, and HR services.
Clients
- Uber
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Uassist.ME was a real estate management company’s lead management partner. Their team of 15 resources worked closely with the client to qualify, nurture, and prime leads.
"Together, we built a sustainable and efficient lead management process."
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12
- $1,000+
- 10 - 49 employees
- Rochester, MN
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.
Industries
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A management consulting agency has hired SocialBloom to help with their sales outreach. The team's tasks involve creating and implementing email campaigns.
"The team always responds in a timely manner and meets with me on a consistent basis."
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13
- Undisclosed
- 250 - 999 employees
- Portland, OR
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.
Clients
- Conroy Consults
- McKeen Law Firm
- Molinar and Co Financial Advocates
Industries
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Ruby Receptionists provide ongoing phone answering services to a solo legal practitioner. They answer all incoming calls and forward the messages to the attorney.
"They run a tight ship."
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14
- Undisclosed
- 1,000 - 9,999 employees
- Margate, FL
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.
Clients
- Crate&Barrel
- Lacoste
- MoMA
- Anthropologie
Industries
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Global Response provided technological and billing services for a life sciences company. Their team processed 100 calls per day. and processed orders. Their work increased overall processing efficiency.
"They act as a strategic partner that is crucial to our business success." – IT Director, Life Sciences Company
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15
- $1,000+
- 1,000 - 9,999 employees
- Lewisville, TX
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.
Clients
- Groupon
- Sprint
- Web2Carz
- Wyndham
Industries
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A marketing firm wanted to handle more inbound phone calls. It hired Invensis to answer phone calls, process orders, and provide customer service. Invensis helped the firm's efficiency improve by 37%. The firm appreciated Invensis' customer service and time management, among other qualities.
"They [Invensis] have turned our company around and helped make it the best it can be!" – HR Manager, Marketing Firm
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16
- $5,000+
- 50 - 249 employees
- New York, NY
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.
Industries
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WiserBrand has deployed resources to augment the internal team of a recruitment and consulting firm. These resources assist with building Magento websites with customized features and updating existing sites.
"They've delivered everything exactly as expected."
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17
- $10,000+
- 1,000 - 9,999 employees
- Cambridge, MA
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.
Clients
- Ministry of Supply
- Public Rec
- BloomNation
Industries
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Peak Support provides customer support through Facebook and Zendesk for a wholesale and manufacturing company. They also are working on a customer feedback loop, collecting data from several funnels.
“Their passion and energy in listening to, and solving, people’s issues, sets them apart from the competition.”
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18
- $5,000+
- 1,000 - 9,999 employees
- Mahwah, NJ
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.
Clients
- TIME Magazine
- GE Capital Bank
- Special Olympics
Industries
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DialAmerica provides outbound calling service for an insurance provider. Their team makes calls to generate leads. The project stretches to around 3,000 hours of calling per month.
"The quality of leads sets them apart from other providers."
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19
- Undisclosed
- 50 - 249 employees
- Duluth, GA
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.
Clients
- Adobe
- McDonalds
- Dell
- Hyundai
Industries
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VoiceNation provides supplemental voice services to augment lead generation. Following guidelines, the team answers calls and collects client information in missed call messages to prioritize follow-ups.
"Their customer service has been excellent."
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20
- $1,000+
- 50 - 249 employees
- Sheridan, WY
Hit Rate Solutions is a global provider of contact center services to clients worldwide. Primarily focused on industries such as consumer products, retail, and manufacturing, Hit Rate Solutions specializes in voice services and non-voice BPO/back office services. The company was established in 2008 and is headquartered in Bacolod, Philippines. Their team is made up of 39 employees.
Clients
- CleanWel Solutions
- ShedsForLessDirect.com
- Capital Placement Agency
- WorldKonnect LLC
Industries
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Hit Rate Solutions provides seasonal marketing assistance by managing activities, events, messages, and calls to boost customer engagement and increase revenue.
"They did a great job and met our requirements."
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21
- Undisclosed
- 10 - 49 employees
- King of Prussia, PA
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.
Clients
- Bausch+Lomb
- Fujitec
- Colwell Banker
Industries
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Specialty Answering Service has provided call center services for an insurance company. The team has helped with after-hours calls and built the call script.
"I really love their services."
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22
- Undisclosed
- 50 - 249 employees
- Jackson, MI
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.
Clients
- Cadillac
- Federal Mogul
- Michigan State University
- Henry Ford Health System
Industries
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Ambs Call Center provides off-hour answering services for a health department that services two counties. They utilize a call log and phone tree.
“It’s great to know we have such reliability, not only for ourselves but also for the public.”
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23
- $1,000+
- 50 - 249 employees
- Las Vegas, NV
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.
Clients
- DirecTV
- Minted
- Segment
- Zadara
Industries
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Leadium provides ongoing lead generation services for an online marketplace that sells luxury products. The team's main task is to set up appointments with key decision-makers within educational institutions.
"Their grasp of our unique value proposition truly sets them apart from other providers."
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24
- $1,000+
- 50 - 249 employees
- Philadelphia, PA
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.
Industries
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Outsourcing Business Solutions augments the staff of an accounts payable services company. They've provided seven teammates, — and additional backup teammates — who provide ongoing back-office support.
"They’ve been legitimate and transparent with us and made sure they’re meeting our expectations."
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25
- $1,000+
- 50 - 249 employees
- Oakland, CA
Located in Oakland, California, Telecom, Inc. Is an answering service. The midsize agency was established in 1993. Their services include voice services and non-voice bpo/back office services.
Industries
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Telecom, Inc. provided call center services for a solar sales company. The team contacted prospective investors to help them learn and invest in solar energy.
"Telecom, Inc. performed at par with our expectations, given the lower quality leads we provided."
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26
- Undisclosed
- 50 - 249 employees
- Nesconset, NY
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.
Industries
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Answering Legal provides call center support to a sole law practitioner who works in criminal defense. They answer calls after hours and forward messages to the client.
"The team is pleasant and intelligent."
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27
- Undisclosed
- 1,000 - 9,999 employees
- Portland, OR
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.
Clients
- UCLA
- Verizon
- Bank of America
- Early Impact
Industries
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AnswerConnect provides ongoing call center services for a law firm that is based in New Jersey.
"It is also impressive how easy it is to get someone on the phone to help when an issue arises."
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28
- Undisclosed
- 50 - 249 employees
- Salt Lake City, UT
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.
Clients
- Verneccia Lashay Fashion and House
- ShowMyPC
- New York Cornea Consultants
- Hungry Iguana Films
Industries
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Using a script, Davinci Virtual Office Solutions follows industry best practices while answering phones for a mental health and substance abuse clinic. They take messages and relay them to the client daily.
“They are an excellent value, and their customer service is superb.”
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29
- Undisclosed
- 10 - 49 employees
- Columbus, GA
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.
Industries
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Voice Link of Columbus, Inc. provides after-hours call reception services for a healthcare company. A live customer operator receives calls and messages for the firm and delivers them to the appropriate person.
"They currently are exceeding expectations."
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30
- $75,000+
- 50 - 249 employees
- Austin, TX
Outsourcing firm ContactWorks is based in Austin, Texas. They were founded in 2004 and now employ a team of 20 that specializes in voice services for clients in the financial & business services and healthcare industries.
Clients
- Fonality
- Giva
- TRC Staffing Services
Industries
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ContactWorks provides call center services for a telecommunications company. They're tasked with providing Tier 1 support and helping develop the client's support documentation and processes.
"ContactWorks is very responsive to our needs and attentive to our brand and customers' demands."
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