Company lists · Data refreshed September 2026

Top 25 Where are call centers based in the United States

RevenueBase identified 132 company matches for where are call centers associated with the United States as of September 2026 and tracks 7,903 professional contacts across them, including 650 with verified work emails. Miami is the largest hub.

This list covers company matches for where are call centers associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built
132Companies
7,903Contacts tracked
650Verified emails
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The 25 largest where are call centers based in the United States

Ranked by team size
Top 25 of 132 company matches for where are call centers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBerwyn, PA, United StatesHQ recorded Sep 21, 20265,001-10,0002,774 contacts →

Exact match

“Advanced Call Center Technologies, LLC (ACT) is a premier provider of domestic (USA), near shore and far shore outsourced call center services to the financial services, mortgage…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2Exact matchHorsham, PA, United StatesHQ recorded Sep 21, 2026501-1,000883 contacts →

Exact match

“If you are interested in growing your business or increasing efficiency, AnswerNet has the expertise, technology, and people to help you take your company to new heights!”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3Exact matchSacramento, CA, United StatesHQ recorded Sep 21, 2026201-500307 contacts →

Exact match

“TeleDirect provides 24/7 U.S-based call center and answering services for organizations that cannot afford to miss important calls.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4Exact matchGreensboro, NC, United StatesHQ recorded Sep 21, 2026201-500216 contacts →

Exact match

“Schedule your FREE Consultation here: http://bit.ly/2gUckQb Anomaly Squared is a contact center services provider.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5Exact matchJacksonville, FL, United StatesHQ recorded Sep 21, 2026501-1,000192 contacts →

Exact match

“With nine call centers located in America, El Salvador, Nicaragua, the Dominican Republic and the Philippines, Bernard works with some of America's largest companies to provide…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6Exact matchMiami, United StatesHQ recorded Sep 21, 202651-200190 contacts →

Exact match

“Grupo Noa International is a premier virtual call center for the international direct response industry.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7Exact matchSpringfield, MO, United StatesHQ recorded Sep 21, 2026201-500180 contacts →

Exact match

“Gold Mountain Communications is a US-based live operator inbound/outbound call center and service agency helping leading national corporations outsource their customer service and…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8Exact matchCharleston, SC, United StatesHQ recorded Sep 21, 202651-200154 contacts →

Exact match

“Founded in 1982, Call Experts is a family owned and operated call center focused on providing extensive telecommunications and office-based services to professionals in numerous…”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9Exact matchMinneapolis, MN, United StatesHQ recorded Sep 21, 2026501-1,000143 contacts →

Exact match

“Customer Elation provides call center services and telephone answering services.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10Exact matchRoseburg, OR, United StatesHQ recorded Sep 21, 2026201-50076 contacts →

Exact match

“Since 1990, TMS has been providing call center services for a wide variety of clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11Exact matchCherry Hill, NJ, United StatesHQ recorded Sep 21, 202651-20065 contacts →

Exact match

“When it comes to telling our story, no one does it better than our clients.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12Exact matchColumbus, OH, United StatesHQ recorded Sep 21, 202651-20061 contacts →

Exact match

“Continental Message Solution (CMS) is an award-winning call center outsourcing company based in Columbus, Ohio.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13Exact matchEstados Unidos, TX, United StatesHQ recorded Sep 21, 202651-20048 contacts →

Exact match

“Omnifon is part of the TXM group, a technology and services company focused on delivering solutions centered on telecommunications technologies.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14Exact matchThe Woodlands, TX, United StatesHQ recorded Sep 21, 20261,001-5,00047 contacts →

Exact match

“CallFasst International, Corp.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15Exact matchKalamazoo, MI, United StatesHQ recorded Sep 21, 202651-20044 contacts →

Exact match

“Call Center Experts.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16Exact matchMiami, FL, United StatesHQ recorded Sep 21, 202651-20042 contacts →

Exact match

“With over 10 years of experience, Desks Virtual Solutions was built on a simple belief.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17Exact matchOmaha, NE, United StatesHQ recorded Sep 21, 202651-20041 contacts →

Exact match

“WASI exited to MAI Voice of Elgin, IL on 28 February 2023, please visit their site:(click here) to learn more about their contact center solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18Exact matchCincinnati, OH, United StatesHQ recorded Sep 21, 202651-20029 contacts →

Exact match

“Lasting impressions are always made when a customer tries to phone you with questions or problems and you’re not available.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19Exact matchBloomington, IN, United StatesHQ recorded Sep 21, 202611-5028 contacts →

Exact match

“CALLNET CALL CENTER SERVICES is a telecommunications company based out of United States.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20Exact matchHorsham, PA, United StatesHQ recorded Sep 21, 202651-20027 contacts →

Exact match

“Quality Contact Solutions provides quality call center solutions that achieve sales results.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21Exact matchOmaha, United StatesHQ recorded Sep 21, 2026201-50023 contacts →

Exact match

“We have outsourced call centers in Omaha Nebraska, Jamaica, and Latin America.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22Exact matchCalabasas, CA, United StatesHQ recorded Sep 21, 202651-20017 contacts →

Exact match

“Rapid Squad, a global call center services provider company, began its journey in 2019.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
23Exact matchOak Lawn, IL, United StatesHQ recorded Sep 21, 202651-20016 contacts →

Exact match

“Our business provides 24/7 inbound call center services and customer contact solutions.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
24Exact matchNew Boston, TX, United StatesHQ recorded Sep 21, 202611-5014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
25Exact matchBaton Rouge, LA, United StatesHQ recorded Sep 21, 202611-5013 contacts →

Exact match

“Handles inbound and outbound calls for selected clients around the world.”

Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

Showing 25 of 132 where are call centers based in the United States

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Where are call centers based in the United States at a glance

As of Sep 21, 2026
8.2%Verified-email coverage
59.9Average contacts per company
51-200Median size (employees)
3.0%Largest-city concentration · Miami
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
24
11-50
33
51-200
40
201-500
18
501-1,000
12
1,001-5,000
4
5,001-10,000
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 132 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “where are call centers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 650 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 21, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “where are call centers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many where are call centers are there based in the United States?

RevenueBase identified 132 company matches for where are call centers associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Advanced Call Center Technologies, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most where are call centers?

Miami leads with 4 company records, followed by Austin (3) and Hollywood (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 650 professional contacts with verified work emails tracked across these 132 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 21, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.